Fumed Silica Yh-200 Factory Directly Supply with CAS No 7631-86-9

Silicon dioxide

SILICA GEL 60 PF254 FOR PREPARATIVE LAYE;LICHROSORB SI 100 (10 MYM) 10 G;TLC-SILICA GEL 60 GF254 MEAN PARTICLE SI;LICHROSORB SI 100 (10 MYM) 100 G;SEA SAND EXTRA PURE 5 KG;SILICA GEL 60 GF254 FOR THIN-LAYER CHROM;SILICA GEL 60 PF254 + 366 FOR PREPARATIV;SEA SAND EXTRA PURE 25 KG

7631-86-9

O2Si

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

60.08

60.08

231-545-4

TSCA listed

White to yellow

2811221000

Dermatological Agents

34.14000

Colorless amorphous (i.e., fused silica) or crystalline (i.e., quartz) material having a low thermal expansion coefficient and excellent optical transmittance in far UV. Silica is insoluble in strong mineral acids and alkalis except HF, concentrated H3PO4, NH4HF2, concentrated alkali metal hydroxides. Owing to its good corrosion resistance to liquid metals such as Si, Ge, Sn, Pb, Ga, In, Tl, Rb, Bi, and Cd, it is used as crucible container for melting these metals, while silica is readily attacked in an inert atmosphere by molten metals such as Li, Na, K Mg, and Al. Quartz crystals are piezoelectric and pyroelectric. Maximum service temperature 1090°C.

-0.61840

White to yellow suspension

2.2-2.6 g/mL at 25 °C

>1600 °C(lit.)

>100 °C(lit.)

2230°C

1.46

insoluble

Refrigerator (+4°C)

13.3hPa at 1732℃

LC inhalation in rat: > 200gm/m3/1H

Noncombustible Solid

Silica gel at -78 deg C adsorbs 4.5 wt % of ozone, and below this temperature the concentration increases rapidly. At below -112 deg C ozone liquefies and there is a potential explosion hazard at temperatures below -100 deg C if organic material is present.

at 100.00%. odorless

Tasteless

5-8 (100g/l, H2O, 20℃)(slurry)

6.65-9.8[at 20 ℃]

2-8°C