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01173

Supelco

Ammonium hydrogen difluoride

technical, ≥95% NH4HF2 basis, scales

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Synonym(s):
Ammonium bifluoride, Etching powder
Linear Formula:
NH4HF2
CAS Number:
Molecular Weight:
57.04
EC Number:
MDL number:
UNSPSC Code:
12352300

grade

technical

Assay

≥95% NH4HF2 basis

form

scales

impurities

≤0.02% heavy metals (as Pb)
≤0.5% water (Karl Fischer)
≤5% NH4F

mp

125 °C (lit.)

anion traces

sulfate (SO42-): ≤2000 mg/kg
sulfite (SO32-): ≤100 mg/kg

cation traces

Fe: ≤500 mg/kg

suitability

clear for appearance of solution (10%)

SMILES string

N.F.F

InChI

1S/2FH.H3N/h2*1H;1H3

InChI key

KVBCYCWRDBDGBG-UHFFFAOYSA-N

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Pictograms

Skull and crossbonesCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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