Ortho-Phosphorous
acid
1
Quality: white crystal, garlic odor, easy to
absorb unstable compounds' moisture. When exists the
oxygen and the temperature is 180-200°C, it decompounds
into ortho-phosphoric acid and phosphine. Soluble in
water and lower alcohol easily, and it's a strong
reducing agent, when heat quickly ,will produce red
phosphorus.
2 Molecular Formula: H3PO3 Relative molecular mass: 82.00Cas No:
[10294-56-1]
3 Manufacturing
technique: our factory produces following two
kind of phosphorous acids divides byraw material :
(1)Take phosphorus trichloride as the raw material and
hydrolyze it to produce crystalline industrial
phosphorous acid and liquid industrial phosphorous acid.
(2) take dimethylphosphite relic solution as the raw
material and hydrolyze it to produce crystalline
industrial phosphorous acid and liquid industrial
phosphorous acid.
4 Use: This
product mainly is suitable for the raw material for
production, such as the phosphite, the synthetic fiber
and the organic phosphorus agricultural chemicals and so
on. Also uses in producing highly effective water
treatment agent ATMP and so on.
5 Quality
Index: HG/T2520-93
| Item |
Crystal Index(%) |
Liquid Index
(%) |
| Phosphorus
trichloride method |
Relic solution method |
Phosphorus
trichloride method |
Relic solution method |
| main content (as H2PO3) ≥ |
≥99.0 |
98.0 |
77-80 |
| chloride content (as Cl)≤ |
0.01 |
0.03 |
| iron content (as Fe)≤ |
0.0015 |
0.002 |
0.003 |
0.005 |
| phosphate content (as PO4)≤ |
0.2 |
- |
- |
| sulphate content (as SO4)≤ |
0.008 |
- |
- |
| Appearance |
White crystal |
achromatism or
pale-yellow liquid |
6 Packing :(1) crystal:
25kgs/bag, inner packaging adopts double ply polythene
film bag, external packaging is plastic woven bag B:
50kgs in paper drum or metal; C: 1000kgs in big bag D:
According to buyer request;(2) liquid:
300Kgs/drum.
7 Storage and
transportation: stores in cool and ventilative
storehouse, Prevents the rain drenches. When
transporting should lightly unload with light packs, be
sure not to roll and to invert. When transport by the
sea and the inland water transport cannot lay aside in
the deck.
8 Security: the product is
a corrosion product, when catch fire should use the dry
sand and CO2 fire extinguisher to put out the fire.
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