联系人 Wendy
Shanghai, Shanghai
Molecular formula:
H3PO3
Molecular weight:
*2.*0
Product Usage: Used as a reducing agent, nylon
whitening agent, as well as a raw material for phosphates and an
intermediate in pesticides.
CAS
number: *********2
Physical and chemical
properties:
colorless
crystallization.
Relative density: 1.**1
(*1.2℃).
Melting point:
*3.6℃.
Boiling point:
**0℃ (decomposition).
Easy to dissolve in water and
alcohol.
Has
strong hygroscopicity and
deliquescence.
Is
corrosive.
Slowly oxidize to orthophosphate in the air,
and decompose into orthophosphate and phosphine (highly toxic) when
heated to **0℃.
Phosphorous acid is a dicarboxylic acid with
slightly stronger acidity than phosphoric acid. It has strong
reducibility and is easy to reduce Ag ions to metallic silver. It
can also reduce sulfuric acid to sulfur
dioxide.
Packaging: *5kg plastic woven bag, or packaged
according to customer requirements.
| 国家: | China |
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