Information

CAS NO.：6303-21-5
UN NO.：3264
FORMULA：H₃PO₂
Molecular Weight ：65.99
MELTING POINT：-25 ℃  (Pure H₃PO₂)
BOILING POINT：108 ℃  (Decomposes)
SPECIFIC GRAVITY：1.274
FLASH POINT：None
STABILITY: Stable under ordinary conditions, when heated strongly or put together with oxidizers, it will be decomposed into phosphine, phosphoric acid,and hydrogen.
SOLUBILITY IN WATER: Miscible

Specification：

Appearance	Clear to yellowish liquid
H3PO2	50% min
H3PO3	0.3% max
SO4	0.005% max
Cl	0.015% max
Fe	5ppm max

Package: in 20 L drum, 200L drum or 1000L IBC