99% Phosphorous Acid H3PO3 Powder Phosphoric Acid

99% Phosphorous Acid H3PO3 Powder Phosphoric AcidProduct Description
1 ProductName:PhosphorousAcid
2 Purity:99%
3 Molecularformula:H3PO3
4 Hazardclass:8
5 UNNo:2834
6 CASNo:13598-36-2
7 HS Code:2811199090
8EINECSNo.:237-066-7
9 Appearance:White Powder
10Package:25/50/1000kgNet Plastic Woven Bag
11 Application:reducing agent, nylon whitener, plastic thermometer, synthetic fiber in plastic industry
Property
Commodity:Phosphorous Acid
Synonym: orthophosphorous acid
Molecular Formula: H3PO3
Molecular Weight: 82
CAS No.: 13598-36-2
UN: 2834
Hazard Class:8
Boiling Point: 200 °C (Decomposes)
Solubility: Easily soluble in water and alcohol.
Phosphorous acid is a colorless crystal. It can be slowly oxidized to phosphoric acid in the air. When heated to 180 °C, it can be decomposed into phosphoric acid and phosphine (highly toxic). As a dibasic acid, it has slightly ber acidity than phosphoric acid. Phosphorous acid has b reducibility and can easily reduce Ag+ to metal silver. It can also reduce sulfuric acid to sulfur dioxide. It is corrosive and has b hygroscopicity.
Relative Density: 1.651 (21.1 °C)
Melting Point: 73.6 °C
Inspectionitems
Index
Appearance
WhiteFlake
Content(H3PO3),%
99.0min
Iron(asFe),%
0.001max
Chloride(asCl),%
0.01max
Sulphate(asSO4),%
0.008max
Phosphate(asPO4),%
0.2max
Heavymetal(asPb),%
0.001max
Application
1. Inindustryandagriculture
Themostimportantuseofphosphorousacidistheproductionofphosphonateswhichareusedinwatertreatment.Phosphorousacidisalsousedforpreparingphosphitesalts,suchaspotassiumphosphite.
2. Asachemicalreagent
Phosphorousacidisusedinchemicalreactionsasareducingagentthatissomewhatlessvigorous
thantherelatedhypophosphorousacid.
Phosphorous acid is also used as nylon whitener, plastic thermometer, synthetic fiber in plastic industry; as materials for producing weedicide, bactericide and water stabilizer in pesticide industry.
Package
Packing: Net each in 25kg plastic woven bag, lined with PE bag.
Or 50kg,500kg and 1000kg as you need
Max loading weight in 1 x 20fcl: 22mtOur Services
HighQuality:KTProcess,advancedequipments,strictcontrolthequality,Complieswith National Standard;
CompetitivePrice:factorydirectsale,makethepricescompetitive;
Cooperatewithmanybigshipcompanies,suchasMaersk,Safmarine,KLINE,OOCL,MSC,Marianaetc.,theycangiveuscompetitiveseafreight.
RichExperience:Exporttomanycountries,suchasUSA,Canada,Australia,Japan,Malaysia,Guinea,Tanzania,SouthAfrica,SaudiAraiba,Jordan,Jamaica,Mexicoetc.
Packingdesign:Thepackingbagsisthenormalbags,customizeddesignsarealsowelcome.