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Chemistry

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Also known as: Silica, Quartz, Dioxosilane, 7631-86-9, Diatomaceous earth, Silica gel
Molecular Formula
O2Si
Molecular Weight
60.084  g/mol
InChI Key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
FDA UNII
ETJ7Z6XBU4

Silicon Dioxide API
Silicon Dioxide is a natural compound of silicon and oxygen found mostly in sand, Silica has three main crystalline varieties: quartz, tridymite, and cristobalite. Fine particulate silica dust from quartz rock causes over a long-term progressive lung injury, silicosis. (NCI04)
1 2D Structure

Silicon Dioxide API

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
dioxosilane
2.1.2 InChI
InChI=1S/O2Si/c1-3-2
2.1.3 InChI Key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
2.1.4 Canonical SMILES
O=[Si]=O
2.2 Other Identifiers
2.2.1 UNII
ETJ7Z6XBU4
2.3 Synonyms
2.3.1 Depositor-Supplied Synonyms

1. Silica

2. Quartz

3. Dioxosilane

4. 7631-86-9

5. Diatomaceous Earth

6. Silica Gel

7. Cristobalite

8. Tridymite

9. Sand

10. Silicic Anhydride

11. 14808-60-7

12. Kieselguhr

13. 112945-52-5

14. Infusorial Earth

15. Aerosil

16. Diatomaceous Silica

17. 61790-53-2

18. 112926-00-8

19. Crystalline Silica

20. Dicalite

21. Wessalon

22. Glass

23. Ludox

24. Nyacol

25. Silicon(iv) Oxide

26. Zorbax Sil

27. Silica, Amorphous

28. 60676-86-0

29. Cab-o-sil

30. Christensenite

31. Crystoballite

32. 14464-46-1

33. Siliceous Earth

34. Synthetic Amorphous Silica

35. Amorphous Silica

36. Silica, Colloidal

37. Quartz (sio2)

38. Chalcedony

39. Diatomite

40. Agate

41. Silica Vitreous

42. Cab-o-sil M-5

43. Colloidal Silica

44. Fused Silica

45. Quartz Glass

46. Quartz Sand

47. Silica Slurry

48. Silicone Dioxide

49. 91053-39-3

50. Colloidal Silicon Dioxide

51. Siliceous Earth, Purified

52. Min-u-sil

53. Silicon Dioxide (amorphous)

54. 15468-32-3

55. Silicon Dioxide, Fumed

56. Siliziumdioxid

57. Silica, Vitreous

58. 68855-54-9

59. Silica, Fumed

60. Kieselsaeureanhydrid

61. Silica Gel, 40-63 Micron Particles

62. Chebi:30563

63. Sio2

64. (sio2)n

65. 43-63c

66. Etj7z6xbu4

67. Silicon Dioxide, Colloidal

68. 15723-40-7

69. Silicon Dioxide, Amorphous

70. Ent 25,550

71. [sio2]

72. Silica, Crystalline - Fused

73. Silicagel

74. Silicon Dioxide, Amorphous Gel

75. 13778-37-5

76. 13778-38-6

77. 17679-64-0

78. Silicondioxide

79. Silica Gel Desiccant, Indicating

80. Celite

81. Sand, Ottawa

82. Sand, Sea

83. Silica Gel Desiccant

84. Calcined Diatomite

85. Mfcd00011232

86. Mfcd00217788

87. Silica, Mesostructured

88. Sillikolloid

89. Acticel

90. Aerosil 380

91. Amethyst

92. Aquafil

93. Carplex

94. Cataloid

95. Crysvarl

96. Extrusil

97. Flintshot

98. Nalcoag

99. Novaculite

100. Porasil

101. Santocel

102. Silikil

103. Silikill

104. Siloxid

105. Sipernat

106. Superfloss

107. Vulkasil

108. Cherts

109. Neosil

110. Neosyl

111. Snowit

112. Aerosil-degussa

113. Imsil

114. Metacristobalite

115. Zipax

116. Quartz Silica

117. Alpha-quartz

118. Fossil Flour

119. Fumed Silica

120. Quartz Dust

121. Rock Crystal

122. Rose Quartz

123. Silica Dust

124. Silica Glass

125. White Carbon

126. Chromosorb P

127. Silica Particles

128. Tiger-eye

129. Vulkasil S

130. Celite Superfloss

131. Cristobalite Dust

132. Snowtex O

133. Corasil Ii

134. Silver Bond B

135. Cab-o-sperse

136. Alpha-cristobalite

137. Alpha-crystobalite

138. Tokusil Tplm

139. Dri-die

140. Gold Bond R

141. Cabosil St-1

142. Manosil Vn 3

143. Sil-co-sil

144. Ultrasil Vh 3

145. Ultrasil Vn 3

146. Aerosil Bs-50

147. Aerosil K 7

148. Cabosil N 5

149. Carplex 30

150. Carplex 80

151. Pigment White 27

152. Siderite (sio2)

153. Snowtex 30

154. Syton 2x

155. Tridymite 118

156. Zeofree 80

157. Cab-o-grip Ii

158. Silicon(iv) Oxide, Amorphous

159. Tridimite [french]

160. Amorphous Silica Gel

161. Hi-sil

162. Glass Wool, For Laboratory Use

163. Positive Sol 232

164. Aerogel 200

165. Aerosil 300

166. Amorphous Silica Dust

167. Ludox Hs 40

168. Silanox 101

169. Silica (sio2)

170. Vitasil 220

171. Positive Sol 130m

172. Siliceous Earth, Purified (nf)

173. Siliceous Earth, Purified [nf]

174. Silicon Oxide Hollow Nanospheres

175. Aerosil A 300

176. Aerosil E 300

177. Aerosil M-300

178. Cristobalite (sio2)

179. Nyacol 830

180. Sibelite M 3000

181. Sibelite M 4000

182. Sibelite M 6000

183. Quazo Puro [italian]

184. Caswell No. 734a

185. Nalfloc N 1050

186. Quso 51

187. Sicron F 300

188. Sikron F 100

189. Spectrosil

190. Accusand

191. Coesite

192. Fuselex

193. Nalcast

194. Nyacol 1430

195. Optocil

196. Quartzine

197. Quarzsand

198. Rancosil

199. Suprasil

200. Tridimite

201. Silica, Amorphous Fused

202. Siltex

203. Vitreous Quartz

204. Vitreous Silica

205. Tridymite Dust

206. W 12 (filler)

207. Beta-quartz

208. Fused Quartz

209. Min-u-sil Alpha Quartz

210. Quartz-beta

211. Quso G 30

212. Amorphous Quartz

213. Dri-die Insecticide 67

214. Nalco 1050

215. Quazo Puro

216. Silica, Amorphous, Fumed

217. Vitrified Silica

218. Mfcd00163736

219. Pyrogenic Colloidal Silica

220. Silica Gel, Spherical, 60 Angstroms

221. Hydrophobic Silica 2482

222. Silica, Fused

223. Suprasil W

224. Vitreosil Ir

225. Borsil P

226. Calcined Diatomaceous Earth

227. Silica Gel, Spherical, 100 Angstroms

228. Silica Gel, Spherical, 300 Angstroms

229. Silane, Dioxo-

230. Crystallized Silicon Dioxide

231. Optocil (quartz)

232. Cp-silicaplot

233. Diatomaceous Earth, Calcined

234. Silicon Oxide, Di- (sand)

235. Quarzsand [german]

236. S-col

237. Admafine So 25h

238. Admafine So 25r

239. Admafine So 32h

240. Admafine So-c 2

241. Admafine So-c 3

242. Cristobalite Asbestos

243. Keatite (sio2)

244. Sg-67

245. Tridymite (sio2)

246. Fumed Silica, Crystalline-free

247. Stishovite (sio2)

248. Ed-c (silica)

249. Fuselex Za 30

250. As 1 (silica)

251. Ccris 2475

252. Ccris 3699

253. Dq12

254. Agate (sio2)

255. Celite 545

256. Dimethyl Siloxanes And Silicones

257. Fumed Synthetic Amorphous Silica

258. Silica, Crystalline - Tridymite

259. Fb 5 (silica)

260. Fuselex Rd 120

261. Corning 7940

262. Microcrystalline Quartz

263. Synthetic Amorphous Silica, Fumed

264. Denka F 90

265. Denka Fb 30

266. Denka Fb 44

267. Denka Fb 74

268. Denka Fs 30

269. Dri-die 67

270. Silica Gel Spherical, 40-75 Mum Particle Size

271. Wgl 300

272. Cryptocrystalline Quartz

273. Fb 20 (silica)

274. Elsil 100

275. F 44 (filler)

276. D & D

277. Sf 35

278. Elsil Bf 100

279. F 125 (silica)

280. F 160 (silica)

281. Fuselex Rd 40-60

282. Silica, Amorphous, Fused

283. Silicon Dioxide, Chemically Prepared

284. Einecs 231-545-4

285. Einecs 238-455-4

286. Einecs 238-878-4

287. Einecs 239-487-1

288. Unii-etj7z6xbu4

289. Hk 400

290. Tgl 16319

291. Silica Gel 60, 0.060-0.2mm (70-230 Mesh)

292. Silica, Crystalline Quartz

293. Silicon Dioxide (vitreous)

294. Epa Pesticide Chemical Code 072605

295. Silica, Amorphous, Fumed, Cryst.-free

296. Silica 2482, Hydrophobic

297. Ci 7811

298. Silica, Crystalline, Quartz

299. Silica, Crystalline: Quartz

300. Gp 7i

301. Cab-o-sil N-70ts

302. Silica, Crystalline Tridymite

303. Kieselgel

304. Seesand

305. Silica, Crystalline - Quartz

306. Af-so 25r

307. Quartz [silica, Crystalline]

308. Siilca

309. Zorbax

310. Quartz-glass

311. Silicom Dioxide

312. Silica Aerogel

313. Silica Flour (powdered Crystalline Silica)

314. Silica, Crystalline: Tridymite

315. Silica-gel

316. Fused-silica

317. Silica,fumed

318. Ai3-25549

319. Gp 11i

320. Rd 8

321. Silica-

322. Fine Grain Sand

323. Quarz

324. U 333

325. W 006

326. Silicon Di-oxide

327. Tridymite [silica, Crystalline]

328. Crs 1102rd8

329. Silica Dispersion

330. Sio2 Nanopowder

331. Silica Gel G

332. Silica, Crystalline: Cristobalite

333. Silica, Tridymite

334. Sio2 Nanospheres

335. Diatomaceous Earth, Flux-calcined, Filter Aid, Treated With Sodium Carbonate, Flux Calcined

336. Silica Gel 60 Adamant(tm) On Tlc Plates, With Fluorescent Indicator 254 Nm

337. Ef 10

338. Fs 74

339. Mr 84

340. Silica, Crystalline - Cristobalite

341. Silica Microspheres

342. Cristobalite [silica, Crystalline]

343. Amorphous Silica: Pyrogenic (fumed)

344. Einecs 262-373-8

345. Silica Gel, Astm

346. Silica Nanoparticles

347. Silicon (iv) Oxide

348. Methyl3-oxohexanoate

349. Siliceous Sand, Cp

350. Bf 100

351. Eq 912

352. Qg 100

353. Rd 120

354. Aerosil 200

355. 99439-28-8

356. Celite 503

357. Nettles P.e. Extract

358. Silicon Dioxide Powder

359. Sea Sand, Acid Washed

360. Silica, Fumed, Powder

361. Silicon Dioxide (nf)

362. Activated Silica Powder

363. Activated Silicon Oxide

364. Sand 50-70 Mesh

365. F 44

366. Silica Gel, Large Pore

367. Y 40

368. Hollow Silica Nanosphere

369. Silicon Oxide Dispersion

370. Silicon Oxide Nanopowder

371. Silica [inci]

372. Silicate [vandf]

373. Activated Silicon Dioxide

374. Celite (r) 545

375. Crystalline Silica Quartz

376. Silica Gel, Acs Reagent

377. Celite(r) 512 Medium

378. Kieselguhr, -325 Mesh

379. Sand [inci]

380. Silica, 99.8%

381. Sba-15 Molecular Sieve

382. Silicon Dioxide Nanopowder

383. Diatomaceous Earth, Powder

384. Dsstox_cid_9677

385. Silicon Dioxide Dispersion

386. Epitope Id:158537

387. Silicon Dioxide Nanospheres

388. Silicon Oxide Nanoparticles

389. Ec 231-545-4

390. Celite(r) 503, Cp

391. Celite(r) 535, Cp

392. Celite(r) 545, Cp

393. Silica Gel [vandf]

394. Nano Silicon Dioxide Powder

395. Dsstox_rid_78805

396. Celatom(r) Fw-60

397. Dsstox_gsid_29677

398. Silicon Dioxide, Acid Washed

399. Silicon Dioxide, Acid-washed

400. Diatomaceous Earth Non-washed

401. Silica Gel [who-dd]

402. Silica, Hydrate(8ci,9ci)

403. Silicon Dioxide [ii]

404. Silicon(iv) Oxide (sio2)

405. Silicon Dioxide, Precipitated

406. Silica Fibers, 1/4'' Long

407. Silicon Dioxide [fcc]

408. Kieselguhr, Calcined, Purified

409. Silica Gel, Cp, Blue, Beads

410. Silica Gel 60-100 Mesh

411. Silica Nanoparticles Dispersion

412. Silica, Fused, Respirable Dust

413. 25wt% Silicon Oxide In Water

414. Aw Standard Super-cel(r) Nf

415. Ins No.551

416. Mcm-41

417. Silica Gel, Cp, Mixed, Beads

418. Silica Gel, Cp, White, Beads

419. Silicates (<1% Crystalline Silica):graphite, Natural

420. Syloid 244 [vandf]

421. Hyflo(r) Super-cel(r), Cp

422. Silicon Dioxide [vandf]

423. Chembl3188292

424. Dtxsid1029677

425. Filter Agent, Celite(r) 545

426. Sand, White Quartz, Cp, Beads

427. Silicone Dioxide [vandf]

428. Quarz Cryst., 0.6-1.3 Mm

429. Silicon Dioxide, Colloidal (nf)

430. Diatomaceous Earth, Flux-calcined

431. Ins-551

432. Silica, Amorphous [iarc]

433. Silicon Dioxide [who-dd]

434. Silicon Dioxide, Saj First Grade

435. Syloid Silica Gel [vandf]

436. Diatomaceous Earth Non-washed, Cp

437. Silica Gel Dessicant (grade 03)

438. Silica Gel, Cp, Blue, Bead Size

439. Filter Agent, Celatom(r) Fw-14

440. Filter Agent, Celatom(r) Fw-50

441. Filter Agent, Celatom(r) Fw-60

442. Filter Agent, Celatom(r) Fw-80

443. Silica, Fused [silica, Amorphous]

444. Silicon Dioxide, Jis Special Grade

445. Silicon Oxide Mesoporous Nanopowder

446. Amy37125

447. Chromosorb(r) G, 80-100 Mesh

448. 2-mercaptoethyl Ethyl Sulfide Silica

449. Celite(r) 545 Aw, Reagent Grade

450. Silica Gel 60, 230-400 Mesh

451. Silica Hollow Nanospheres Dispersion

452. Silicon(iv) Oxide, Electronic Grade

453. Tox21_301288

454. Mfcd00148266

455. Mfcd00603035

456. Mfcd02100519

457. Mfcd06202255

458. Mfcd07370733

459. Sand, White Quartz, Cp, Crystalline

460. Silica Gel, Indicating, 6-16 Mesh

461. Chromosorb(r) W/aw, 45-60 Mesh

462. Light Anhydrous Silicic Acid (jp17)

463. Quarz Fine, Cryst., 0.4-0.8 Mm

464. Silica Gel, 70-200 Mesh (tlc)

465. Silica, Fumed, Powder, 0.008 Mum

466. Akos009085429

467. Colloidal Silica, 30% Susp. In H2o

468. Silicon Dioxide Nanospheres Properties

469. Db11132

470. Iron Sulfide (fes) Sputtering Targets

471. Silicon Dioxide Nanoparticle Dispersion

472. Glass Spheres, 9-13 Mum Particle Size

473. Quartz (silicon Dioxide), Silver, Pure

474. S25266

475. Silica Gel, Cp, White, Medium Granules

476. Silica Gel, Technical Grade, 3-9 Mesh

477. Silica, Mesostructured, Hms (wormhole)

478. Ncgc00257531-01

479. Sand, White Quartz, Purum P.a., Powder

480. Silica Gel Orange, Granular, 0.2-1 Mm

481. Silicon Dioxide Amorphous Fumed Silica

482. Silicon Oxide Nanoparticles / Nanopowder

483. Silicon(iv) Oxide, Powder, 0.5 Micron

484. Silicon(iv) Oxide, Powder, 1.0 Micron

485. Silicon(iv) Oxide, Powder, 1.5 Micron

486. 14639-89-5

487. 92283-58-4

488. E551

489. Silica Gel, Cp, Blue, Bead Size, Medium

490. Silica Gel, Technical Grade, 6-16 Mesh

491. Silicon Oxide Powder, 99% Nano, 20 Nm

492. Cas-7631-86-9

493. Silica Gel Desiccant, -3+8 Mesh Granules

494. Silica Gel, 12-24 Mesh (liquid Drying)

495. Silica Gel, Cp, Mixed, Bead Size, Medium

496. Silica Gel, For Column Chromatography, 60

497. Silicon Dioxide Nanoparticles / Nanopowder

498. Celite(r) 281, Filter Aid, Flux Calcined

499. Celite(r) S, Filter Aid, Dried, Untreated

500. Chromosorb(r) W/aw-dmcs, 80-100 Mesh

501. Silica Gel Desiccant, -6+12 Mesh Granules

502. Silicon Dioxide, Purum P.a., Acid Purified

503. Simethicone Component Silicon Dioxide

504. White Silica Gel Beads, 3 Mm (2-5 Mm)

505. E-551

506. Ft-0624621

507. Ft-0645127

508. Ft-0689145

509. Ft-0689270

510. Ft-0696592

511. Ft-0696603

512. Ft-0697331

513. Ft-0697389

514. Ft-0700917

515. Quartz Rod, Fused, 2.0mm (0.079in) Dia

516. Quartz Rod, Fused, 5.0mm (0.197in) Dia

517. S0822

518. Silica Gel, With 1-4 Mm Moisture Indicator

519. Silica, Amorphous, Fumed (crystalline Free)

520. Silicon Dioxide Nanopowder Kh550 Processing

521. Silicon Dioxide Nanopowder Kh570 Processing

522. Silicon(iv) Oxide, 99.0% (metals Basis)

523. Celite(r) 110, Filter Aid, Flux Calcinated

524. Celite(r) 512 Medium, Filter Aid, Calcined

525. Chromosorb(r) G/aw-dmcs, 100-120 Mesh

526. Chromosorb(r) W/aw-dmcs, 120-140 Mesh

527. K-411 Glass Microspheres, Nist Srm 2066

528. Quartz Rod, Fused, 10.0mm (0.394in) Dia

529. Silica Gel, Technical Grade 40, 6-12 Mesh

530. C18 Silica Gel, Endcapped, 60a, 40-63um

531. D05839

532. D06521

533. D06522

534. D78143

535. Sand, White Quartz, 50-70 Mesh Particle Size

536. Silica, Mesostructured, Msu-f (cellular Foam)

537. Silicon Dioxide Component Of Simethicone

538. Silicon Dioxide, Amorphous Gel, 15% In Water

539. Silicon Dioxide, Amorphous Gel, 40% In Water

540. Silicon(iv) Oxide, 99.999% (metals Basis)

541. Celite(r) 209, Filter Aid, Natural, Untreated

542. Celite(r) Analytical Filter Aid Ii (cafa Ii)

543. Glass Sand, Nist(r) Srm(r) 165a, Low Iron

544. Silica Gel Spherical, 75-200 Mum Particle Size

545. Silica Gel, Davisil(r) Grade 922, -200 Mesh

546. Silica Gel, Large Pore, P.vol. Ca. 1.65cc/g

547. Silicon Oxide (silica, Silicon Dioxide, Quartz)

548. Silicon Oxide Powder, 99.5% Nano, 15-20 Nm

549. Diatomaceous Earth, Calcined, Filter Aid, Calcined

550. Q116269

551. Sand For Sand Sieve Analysis, Nist(r) Rm 8010

552. Silica Gel, Gf254, For Thin Layer Chromatography

553. Silica Gel, Hf254, For Thin Layer Chromatography

554. Silica Gel, Type Iii, Indicating, For Desiccation

555. Silica Standard: Sio2 @ 100 Microg/ml In H2o

556. Silica Standard: Sio2 @ 1000 Microg/ml In H2o

557. Silica, Mesostructured, Mcm-41 Type (hexagonal)

558. Silicon Dioxide, Purum P.a., Acid Purified, Sand

559. Standard Super Cel(r) Fine, Filter Aid, Calcined

560. Celite(r) 500 Fine, Filter Aid, Dried, Untreated

561. Collodial Silica In Aqueous Solution (nanoparticles)

562. Glass Sand, Nist(r) Srm(r) 1413, High Alumina

563. J-002874

564. Sand, White Quartz, >=99.995% Trace Metals Basis

565. Silica Gel, Large Pore, P.v. Ca. 1cc/g, 8 Mesh

566. Silica Gel, Technical Grade, 1-3 Mm Particle Size

567. Silica Gel, Technical Grade, 3-6 Mm Particle Size

568. Silica Gel, With Moisture Indicator (blue), Coarse

569. Celpure(r) P65, Meets Usp/nf Testing Specifications

570. Metal Scavenging Agent, Mercaptopropyl Modified Silica

571. Micro Particles Based On Silicon Dioxide, Size: 2 Mum

572. Micro Particles Based On Silicon Dioxide, Size: 3 Mum

573. Micro Particles Based On Silicon Dioxide, Size: 4 Mum

574. Micro Particles Based On Silicon Dioxide, Size: 5 Mum

575. Quartz Lid For 30ml Quartz Crucible, Fused, Id 48mm

576. Silica Gel Desiccant, Indicating, <1% Cobalt Chloride

577. Silica Gel, -60-120 Mesh, For Column Chromatography

578. Silicon(iv) Oxide, 15% In H2o, Colloidal Dispersion

579. Silicon(iv) Oxide, 30% In H2o, Colloidal Dispersion

580. Silicon(iv) Oxide, 50% In H2o, Colloidal Dispersion

581. Celpure(r) P100, Meets Usp/nf Testing Specifications

582. Celpure(r) P1000, Meets Usp/nf Testing Specifications

583. Celpure(r) P300, Meets Usp/nf Testing Specifications

584. Micro Particles Based On Silicon Dioxide, Size: 0.5 Mum

585. Micro Particles Based On Silicon Dioxide, Size: 1.0 Mum

586. Silica Dispersion (sio2, Aqueous Dispersion, Amorphous)

587. Silica Gel 60, 0.032-0.063mm (230-450 Mesh)

588. Silica Gel 60, 0.036-0.071mm (215-400 Mesh)

589. Silica Gel 60, 0.040-0.063mm (230-400 Mesh)

590. Silica Gel Desiccant, Indicating, -6+16 Mesh Granules

591. Silica Gel, With Moisture Indicator (blue), -6-20 Mesh

592. Silica, Mesostructured, Msu-h (large Pore 2d Hexagonal)

593. Silica, Mesostructured, Sba-15, 99% Trace Metals Basis

594. Silica, Standard Solution, Specpure?, Sio2 1000?g/ml

595. Silicon Dioxide (silica) Nanodispersion Type A (20nm)

596. Silicon Dioxide (silica) Nanodispersion Type B (20nm)

597. Silicon Dioxide, -325 Mesh, 99.5% Trace Metals Basis

598. Silicon Dioxide, Amorphous, Hexamethyldisilazane Treated

599. Silicon Dioxide, Washed And Calcined, Analytical Reagent

600. Silicon(iv) Oxide, Amorphous Fumed, S.a. 85-115m2/g

601. Zeolite - Mesoporous Silica Nanopowder (sba-15 Type)

602. Chromosorb(r) W, Aw-dmcs, 100-120 Mesh Particle Size

603. Diatomaceous Earth, Calcined, Filter Aid, Slightly Calcined

604. Micro Particles Based On Silicon Dioxide, Size: 0.15 Mum

605. Silica Gel, High-purity Grade (15111), Pore Size 60 ??

606. Silica Slurry (sio2, Purity: 99%, Diameter: 15-20nm)

607. Silica, Mesoporous, 1 Mum Particle Size, Pore Size ~2 Nm

608. Silica, Mesoporous, 1 Mum Particle Size, Pore Size ~4 Nm

609. Silica, Mesoporous, 2 Mum Particle Size, Pore Size ~2 Nm

610. Silica, Mesoporous, 2 Mum Particle Size, Pore Size ~4 Nm

611. Silica, Mesoporous, 3 Mum Particle Size, Pore Size ~2 Nm

612. Silica, Mesoporous, 3 Mum Particle Size, Pore Size ~4 Nm

613. Silica,fumed, Hydrophilic, Specific Surface Area 200 M2/g

614. Silica,fumed, Hydrophilic, Specific Surface Area 400 M2/g

615. Silicon(iv) Oxide, Amorphous Fumed, S.a. 175-225m?/g

616. Silicon(iv) Oxide, Amorphous Fumed, S.a. 300-350m?/g

617. Silicon(iv) Oxide, Amorphous Fumed, S.a. 350-420m2/g

618. Amorphous Silica: Vitreous Silica, Quartz Glass, Fused Silica

619. Diatomaceous Earth, Flux-calcined, Filter Aid, Flux Calcined

620. Ludox(r) Am Colloidal Silica, 30 Wt. % Suspension In H2o

621. Ludox(r) Cl Colloidal Silica, 30 Wt. % Suspension In H2o

622. Ludox(r) Cl-x Colloidal Silica, 45 Wt. % Suspension In H2o

623. Ludox(r) Ls Colloidal Silica, 30 Wt. % Suspension In H2o

624. Ludox(r) Sm Colloidal Silica, 30 Wt. % Suspension In H2o

625. Ludox(r) Tma Colloidal Silica, 34 Wt. % Suspension In H2o

626. Silica Gel Orange, With Moisture Indicator Free Of Heavy Metals

627. Silica Gel, High-purity Grade, Fia According To Din 51791

628. Silica, Mesoporous, 0.5 Mum Particle Size, Pore Size ~2 Nm

629. Silica, Mesoporous, 0.5 Mum Particle Size, Pore Size ~4 Nm

630. Silicon Dioxide, Acid Washed And Calcined, Analytical Reagent

631. Silicon Dioxide, Crystalline (fine), Coating Quality, >=99.9%

632. Chromosorb(r) P, Naw, 60-80 Mesh Particle Size, Bottle Of 100 G

633. Chromosorb(r) W, Aw, 80-100 Mesh Particle Size, Bottle Of 100 G

634. Chromosorb(r) W, Hp, 60-80 Mesh Particle Size, Bottle Of 100 G

635. Diatomaceous Earth, Calcined, Powder, Suitable For Most Filtrations

636. Ludox(r) As-30 Colloidal Silica, 30 Wt. % Suspension In H2o

637. Ludox(r) As-40 Colloidal Silica, 40 Wt. % Suspension In H2o

638. Ludox(r) Hs-30 Colloidal Silica, 30 Wt. % Suspension In H2o

639. Ludox(r) Hs-40 Colloidal Silica, 40 Wt. % Suspension In H2o

640. Ludox(r) Tm-40 Colloidal Silica, 40 Wt. % Suspension In H2o

641. Ludox(r) Tm-50 Colloidal Silica, 50 Wt. % Suspension In H2o

642. Quartz Optical Window, 25.4mm (1.0in) Dia X 1mm (0.04in) Thick

643. Quartz Optical Window, 25.4mm (1.0in) Dia X 2mm (0.08in) Thick

644. Silica Gel, Davisil(r) Grade 22, Pore Size 60 ??, 60-200 Mesh

645. Silica Gel, High-purity Grade, 60??, 35-60 Mesh Particle Size

646. Silica Gel, High-purity Grade, Pore Size 60 ??, 70-230 Mesh

647. Silica Gel, Hplc Grade, Spherical, 3 Micron Aps, 120 Angstroms

648. Silica Gel, Hplc Grade, Spherical, 3 Micron Aps, 70 Angstroms

649. Silica Gel, Technical Grade (w/ Fluorescent Indicator), 60 F254

650. Silica Gel, Type H, Without Binder, For Thin Layer Chromatography

651. Silica Gel, Type Ii, 3.5 Mm Bead Size, Suitable For Desiccation

652. Silica, Fumed, Powder, 0.2-0.3 Mum Avg. Part. Size (aggregate)

653. Silicon Dioxide Dispersion (sio2, Aqueous Dispersion, Amorphous)

654. Silicon Dioxide, For Cleaning Of Platinum Crucibles, Calcined, Crude

655. Silicon Dioxide, Fused (pieces), 4 Mm, 99.99% Trace Metals Basis

656. Silicon Oxide, Catalyst Support, High Surface Area, S.a.250m2/g

657. Silicon(iv) Oxide, 99+%, 0.012 Micron (fumed Colloidal Silica)

658. Silicon(iv) Oxide, 99.5% (metals Basis) , -325 Mesh Powder

659. Zeolite - Mesoporous Silica Nanopowder (1d-hexagonal Sba-41 Type)

660. Zeolite - Mesoporous Silica Nanopowder (3d-cubic Mcm-48 Type)

661. Celatom(r), Acid-washed, For Use In Total Dietary Fiber Assay, Tdf-100a

662. Chromosorb(r) G, Hp, 100-120 Mesh Particle Size, Bottle Of 100 G

663. Chromosorb(r) P, Aw-dmcs, 80-100 Mesh Particle Size, Bottle Of 100 G

664. Chromosorb(r) W, Aw, 100-120 Mesh Particle Size, Bottle Of 100 G

665. Chromosorb(r) W, Hp, 100-120 Mesh Particle Size, Bottle Of 100 G

666. Nbs 28 (silicon And Oxygen Isotopes In Silica Sand), Nist(r) Rm 8546

667. Quartz Disc, Fused, 50.8mm (2.0in) Dia X 1.59mm (0.06in) Thick

668. Quartz Disc, Fused, 50.8mm (2.0in) Dia X 3.18mm (0.13in) Thick

669. Quartz Disc, Fused, 76.2 (3.0 In) Dia X 3.18mm (0.13in) Thick

670. Quartz Disc, Fused, 76.2mm (3.0in) Dia X 1.59mm (0.06in) Thick

671. Quartz Microscope Slide, Fused, 25.4x25.4x1.0mm (1.0x1.0x0.0394in)

672. Quartz Microscope Slide, Fused, 50.8x25.4x1.0mm (2.0x1.0x0.0394in)

673. Quartz Microscope Slide, Fused, 76.2x25.4x1.0mm (3.0x1.0x0.0394in)

674. Silica Gel 60, 0.105-0.2mm (70-150 Mesh), S.a. 500-600m2/g

675. Silica Gel, High Purity, 90??, 35-70 Mesh, For Column Chromatography

676. Silica Gel, High-purity Grade (7734), Pore Size 60 ??, 70-230 Mesh

677. Silica Gel, High-purity Grade (7754), Pore Size 60 ??, 70-230 Mesh

678. Silica Gel, High-purity Grade, 40, >=400 Mesh, For Column Chromatography

679. Silica Gel, High-purity Grade, 40, 35-70 Mesh, For Column Chromatography

680. Silica Gel, High-purity Grade, 40, 70-230 Mesh, For Column Chromatography

681. Silica Gel, High-purity Grade, 90??, 15-25 Mum, For Column Chromatography

682. Silica Gel, High-purity Grade, Pore Size 40 ??, 35-70 Mesh Particle Size

683. Silica Gel, High-purity Grade, Pore Size 60 ??, >=400 Mesh Particle Size

684. Silica Gel, Technical Grade, Pore Size 60 ??, 200-425 Mesh Particle Size

685. Silica Gel, Technical Grade, Pore Size 60 ??, 70-230 Mesh, 63-200 Mum

686. Silica Nanoparticles Dispersion (sio2, Purity: 99.9%, Diameter: 50-80nm)

687. Silica, Nanoparticles, Mesoporous, 200 Nm Particle Size, Pore Size 4 Nm

688. Silicon Dioxide, ~99%, 0.5 - 10 Um (approx. 80% Between 1-5 Um)

689. Silicon Dioxide, ~99%, 0.5-10 Mum (approx. 80% Between 1-5 Mum)

690. Silicon Dioxide, Amorphous, Cyclic Azasilane/hexamethyldisilazane Treated

691. Silicon Dioxide, Fused (granular), 4-20 Mesh, 99.9% Trace Metals Basis

692. Silicon Oxide Hollow Nanospheressilicon Dioxide Nanospheres Properties

693. Silicone Sol(sio2, Purity: >99.9%, Diameter: 12nm, Solvent: Methanol)

694. Silicone Sol(sio2, Purity: >99.9%, Diameter: 12nm, Solvent: Toluene)

695. Silicone Sol(sio2, Purity: >99.9%, Diameter: 22nm, Solvent: Methanol)

696. Silicone Sol(sio2, Purity: >99.9%, Diameter: 45nm, Solvent: Methanol)

697. Diatomaceous Earth, Flux-calcined, Filter Aid, Flux Calcined, Treated With Sodium Carbonate

698. Diatomaceous Earth, Flux-calcined, Filter Aid, Treated With Sodium Carbonate, Calcined

699. Hollow Silica Nanospheres Dispersion (sio2, Purity: >99.9%, Diameter: 80-100nm)

700. Nano Silica Water Dispersion (sio2, Purity: >99.9%, Diameter: 10nm, 20 Wt.%)

701. Nano Silica Water Dispersion (sio2, Purity: >99.9%, Diameter: 10nm, 25 Wt.%)

702. Nano Silica Water Dispersion (sio2, Purity: >99.9%, Diameter: 10nm, 30 Wt.%)

703. Nano Silica Water Dispersion (sio2, Purity: >99.9%, Diameter: 15nm, 20 Wt.%)

704. Nano Silica Water Dispersion (sio2, Purity: >99.9%, Diameter: 15nm, 25 Wt.%)

705. Nano Silica Water Dispersion (sio2, Purity: >99.9%, Diameter: 15nm, 30 Wt.%)

706. Silica Gel 60 Adamant(tm) On Tlc Plates, With Fluorescence Indicator 254 Nm

707. Silica Gel 60, 0.019-0.037mm (400-600 Mesh), S.a. 500-600m2/g

708. Silica Gel 60, 0.062-0.105mm (150-230 Mesh), S.a. 500-600m2/g

709. Silica Gel, Davisil(r) Grade 710, Pore Size 50-76 ??, For Thin Layer Chromatography

710. Silica Gel, High-purity Grade (10180), Pore Size 40 ??, 70-230 Mesh Particle Size

711. Silica Gel, High-purity Grade (9385), Pore Size 60 ??, 230-400 Mesh Particle Size

712. Silica Gel, High-purity Grade (davisil Grade 12), Pore Size 22 ??, 28-200 Mesh

713. Silica Gel, High-purity Grade (davisil Grade 62), Pore Size 150 ??, 60-200 Mesh

714. Silica Gel, High-purity Grade (davisil Grade 635), Pore Size 60 ??, 60-100 Mesh

715. Silica Gel, High-purity Grade (davisil Grade 643), Pore Size 150 ??, 200-425 Mesh

716. Silica Gel, High-purity Grade (davisil Grade 646), 35-60 Mesh, Pore Size 150 ??

717. Silica Gel, High-purity Grade (davisil Grade 923), Pore Size 30 ??, 100-200 Mesh

718. Silica Gel, High-purity Grade, 100??, 200-400 Mesh, For Preparative Liquid Chromatography

719. Silica Gel, High-purity Grade, 40??, 230-400 Mesh, For Preparative Liquid Chromatography

720. Silica Gel, High-purity Grade, 60??, Gypsum ~13 %, For Preparative Liquid Chromatography

721. Silica Gel, High-purity Grade, 90??, 70-230 Mesh, For Column Chromatography

722. Silica Gel, High-purity Grade, For Thin Layer Chromatography, H, Without Calcium Sulfate

723. Silica Gel, High-purity Grade, Pore Size 60 ??, 130-270 Mesh, For Column Chromatography

724. Silica Gel, High-purity Grade, Pore Size 60 ??, 200-400 Mesh Particle Size

725. Silica Gel, High-purity Grade, Type G, 5-15 Mum, For Thin Layer Chromatography

726. Silica Gel, Preparative Chromatography Grade, Spherical, 10 Micron Aps, 60 Angstroms

727. Silica Gel, Preparative Chromatography Grade, Spherical, 15 Micron Aps, 120 Angstroms

728. Silica Gel, Preparative Chromatography Grade, Spherical, 15 Micron Aps, 60 Angstroms

729. Silica Gel, Preparative Chromatography Grade, Spherical, 50 Micron Aps, 60 Angstroms

730. Silica Gel, Preparative Chromatography Grade, Spherical, 7.5 Micron Aps, 120 Angstroms

731. Silica Gel, Wide Pore, 150 Angstroms, -100+200 Mesh, S.a. 350-400m2/g

732. Silica Nanosprings Tm Coated With Zinc Oxide And Grown On Fiber Glass Substrate (3.5 X 8cm)

733. Silica, Mesoporous Mcm-48, 15 Mum Particle Size, Pore Size 3 Nm, Cubic Pore Morphology

734. Silica, Mesoporous Sba-16, <150 Mum Particle Size, Pore Size 5 Nm, Cubic Pore Morphology

735. Silica, Nanopowder, Spec. Surface Area 175-225 M2/g (bet), 99.8% Trace Metals Basis

736. Silicon Dioxide, Nanopowder, 10-20 Nm Particle Size (bet), 99.5% Trace Metals Basis

737. Silicon(iv) Oxide Sputtering Target, 50.8mm (2.0in) Dia X 3.18mm (0.125in) Thick

738. Silicon(iv) Oxide Sputtering Target, 50.8mm (2.0in) Dia X 6.35mm (0.250in) Thick

739. Silicon(iv) Oxide Sputtering Target, 76.2mm (3.0in) Dia X 3.18mm (0.125in) Thick

740. Silicon(iv) Oxide Sputtering Target, 76.2mm (3.0in) Dia X 6.35mm (0.250in) Thick

741. Silicon(iv) Oxide, 40% In H20, Colloidal Dispersion, 0.02 Micron Particles

742. Silicon(iv) Oxide, Amorphous Fumed, Surface Treated, S.a. 105-130m2/g, -325 Mesh

743. Silicon(iv) Oxide, Amorphous Fumed, Surface Treated, S.a. 105-145m2/g, -325 Mesh

744. Silicon(iv) Oxide, Amorphous Fumed, Surface Treated, S.a. 205-245m2/g, -325 Mesh

745. Silicone Sol(sio2, Purity: >99.9%, Diameter: 12nm(lock), Solvent: Isopropyl Alcohol)

746. Silicone Sol(sio2, Purity: >99.9%, Diameter: 12nm(lock), Solvent: Methyl Ethyl Ketone)

747. Silicone Sol(sio2, Purity: >99.9%, Diameter: 12nm, Solvent: Dimethylacetamid