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Phosphorous acidCAS#13598-36-2

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Chemical Name：Phosphorous acid

CAS No.13598-36-2

Molecular Formula：H3O3P

Molecular weight:82

Sample: Available

Mode of Transportation

1. By Air, fast but expensive.

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Product Details

Products Description of Phosphorous acidCAS#13598-36-2

Colorless crystals. Easily soluble in water and alcohol.

Phosphorous acid Chemical Properties

Melting point	73 °C
Boiling point	200 °C
density	1.651 g/mL at 25 °C(lit.)
vapor pressure	0.001Pa at 20℃
Fp	200°C
storage temp.	0-6°C
solubility	DMSO (Slightly), Methanol (Slightly), Water (Sparingly)
form	Crystals
pka	pK1 1.29; pK2 6.74(at 25℃)
Specific Gravity	1.651
color	White
Water Solubility	SOLUBLE
Sensitive	Air Sensitive & Hygroscopic
Merck	14,7346
Stability:	Stable. Incompatible with strong bases. Hygroscopic.
CAS DataBase Reference	13598-36-2(CAS DataBase Reference)
NIST Chemistry Reference	(HO)2HPO(13598-36-2)
EPA Substance Registry System	Phosphonic acid (13598-36-2)

Safety Information

Hazard Codes	C
Risk Statements	22-35
Safety Statements	26-36/37/39-45
RIDADR	UN 2834 8/PG 3
WGK Germany	1
RTECS	SZ6400000
F	3
TSCA	Yes
HazardClass	8
PackingGroup	III
HS Code	28092019

Product Application of Phosphorous acid CAS#13598-36-2

It is the raw material for making phosphites, plastic stabilizers (such as dibasic lead phosphite) and organophosphorus pesticides. It is used as a stabilizer for polycarbonate. It is also used as an antioxidant for nylon 1010.

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