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Merck
CN

01301

Fluosilicic acid

technical, 33.5-35%

Synonym(s):

Fluorosilicic acid, Hexafluorosilicic acid, Hydrogen hexafluorosilicate

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About This Item

Linear Formula:
H2SiF6
CAS Number:
16961-83-4
Molecular Weight:
144.09
UNSPSC Code:
12352300
MDL number:
MFCD00036289

Key Documents

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InChI key

ZEFWRWWINDLIIV-UHFFFAOYSA-N

InChI

1S/F4Si.2FH/c1-5(2,3)4;;/h;2*1H

SMILES string

F.F.F[Si](F)(F)F

grade

technical

concentration

33.5-35%

impurities

≤0.005% heavy metals (as Pb)

density

1.22 g/mL at 20 °C (lit.)

anion traces

chloride (Cl-): ≤1%, sulfate (SO42-): ≤1%

cation traces

Fe: ≤300 mg/kg

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
A208A
7290B
6312B
4062A
1198A

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