Phosphorous Acid
Detail

Basic Information

Other Names: PA; PPA;Phosphonic Acid; Hydrogen Phosphonate                      

Molecular Formula: H3PO3    

Molecular Weight: 82.00

CAS NO.: 13598-36-2

EINECS NO.: 237-066-7

UN NO.: 2834

H.S. CODE NO.: 2811199090

Standard: HG/T2520-2006

Purity: 99% min.

Physicochemical Properties

1.Appearence: Colorless Crystals

2.Melting Point: 74℃

3.Boiling Point: 200℃ (Decomposes)

4.Density: 1.651 Kg/L (21.1℃)

5.Stability: Stable.

Technical Specifications

Name of indexes

Guaranteed  Specification

Testing  Results

Main  content(based on H3PO3)

99% min

99.19%

Chloride (Cl)

0.001%max

0.0004%

Iron (Fe)

0.005% max.

0.0009%

Sulphate (SO4)

0.001% max.

0.0005%

Phosphate (PO4)

0.3% max.

0.03%

Appearance

White Crystal

White Crystal

Smell

Without smell

Without smell

Packaging Types

           25kg bag; 50kg bag; 1000kg bigbag or as per customers' requirement

Applications

Mainly used as a reducer, a nylon brightener, a plasticizer, a synthetic fiber, etc. in the plastic industry.

Also used to produce herbicides, bactericides and water quality stabilizers in the organo phosphorus pesticide industry.

Also used to produce high performance water treating agent ATMP.

Transport Information

1.IMDG: Class 8

2.Packaging group: III

3.Storage: Stored in a sperate, safe, cool, ventilated, dry warehouse.