CHEMICAL FORMULA :NH4HF2 M.W.: 57.04
DESCRIPTION: white or colorless fransparent rhomb lamdllar crystal,relative density in 1.52,melting point in 125.6℃ and boiling point in 240℃ more easily air slaking,diluted slightly in cool water,decomposition and a atrong acidity in hot water,corrosive to glass ,also to skin ,dangerous!
PRODUCTION#: CAS#:1341-49-7 HS NO.:28261100 MSDS:YF0405-06
SPEC |
Grade A |
Grade B |
ITEMS |
Sungo Standard |
JISK1407-78 |
Appearance % |
White salt-like crysta |
White salt-like crysta |
Assay % |
≥99% |
≥97% |
SO4 % |
≤0.05 |
≤0.1 |
fluosilicate % |
≤0.02 |
≤3 |
Heavy metal % |
|
≤0.002 |
Residue on ignitionn % |
≤0.005 |
≤0.2 |
Loss on drying % |
≤0.5 |
≤3 | |