PHOSPHOROUS ACID | ||
PRODUCT IDENTIFICATION | ||
CAS NO. |
13598-36-2 |
|
EINECS NO. |
237-066-7 | |
FORMULA |
(HO)2HPO | |
MOL WT. |
82.00 | |
HS CODE |
2811.19 | |
SYNONYMS |
Orthophosphorous acid; Dihydroxyphosphine oxide; | |
Phosphorus; Trihydroxide; Trihydroxyphosphine; Phosphonsäure (Dutch); ácido fosfónico (Spanish); Acide phosphonique (French); | ||
GENERAL DESCRIPTION | ||
Phosphorous acid and phosphite are used as reducing agents in chemical industry because of easy oxidation property to phosphoric acid. They are used as antioxidant, stabilizer and chelating agent in plastic system. They are used as solvent in paint and as flame retardant on fibres. They are used as a chemical intermediate in the production of pharmaceutical ingredients, pesticides, optical brighteners and in lubricant additives and adhesives. | ||
PHYSICAL AND CHEMICAL PROPERTIES | ||
PHYSICAL STATE |
Clear to yellowish Crystal | |
MELTING POINT |
73 C | |
BOILING POINT |
200 C (Decomposes) | |
STABILITY |
Has not been fully evaluated. Hygroscopic, air sensitive. | |
APPLICATIONS | ||
Raw material to prepare phosphites; stabilizers for plastics; Water treatment; Bleaching and Cleaning industry; Chemical manufacturing | ||
SALES SPECIFICATION | ||
APPEARANCE |
Clear to yellowish Crystal | |
PHOSPHOROUS ACID |
98.5% min | |
PHOSPHATE |
0.2% max | |
CHLORIDE |
0.015% max | |
SULFATE |
0.008% max | |
HEAVY METALS |
15ppm max | |
IRON |
15ppm max | |
TRANSPORTATION | ||
PACKING |
25kgs in bag | |
HAZARD CLASS |
8 ( Packing group II ) | |
UN NO. |
2834 |