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Phosphorous Acid CAS NO. 13598-36-2

1. Product Introduction Phosphorous Acid CAS NO. 13598-36-2 UN No: 2834 8.1 Class Molecular Formula: HCONHCH3 Phosphorous Acid other names hydrogen phosphonate, Dihydroxyphosphine oxide, is white colorless crystal.It mainly used in the production of basic lead phosphite, which is a stabilizer in......

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1. Product Introduction

Phosphorous Acid

CAS NO. 13598-36-2

UN No: 2834   8.1 Class 

Molecular Formula: HCONHCH3

Phosphorous Acid other names hydrogen phosphonate, Dihydroxyphosphine oxide, is white colorless crystal.It mainly used in the production of basic lead phosphite, which is a stabilizer in PVC and related chlorinated polymers.


2. Specification or COA

Name: Phosphorous acid

Appearance: white colorless crystal

Main content (as H3PO3): 98% min

Iron (as Fe): 0.002% max

Chloride (as Cl): 0.01% max

Sulphate (as SO4): 0.006% max

Phosphate (as PO4): 0.1% max

Heavy metal (as Pb): 0.001% max


3. Product application

Phosphorous Acid is used as reducing agent, nylon whitener, plastic thermometer, synthetic fiber in 

plastic industry; as materials for producing weedicide, bactericide and water stabilizer in pesticide industry.


4. Packing & Delivery

Standard export neutral packing in 25kg/bag, 20’FCL=22T. or 20’Iso-tank or plastic coated metal pail, or according to customers requirement.

Fresh stock of Phosphorous Acid with immediate delivery


5. FAQ

Where did Meiyachem company come from?

Meiyachem was founded in Henan in 2005. Consistently with sister company KEMIACHEM CO., LIMITED, we are a global professional chemical solvents manufacturer and distributor through supplying solutions for a variety of chemicals with diverse applications and serve a wide range of industries.

Can I expect shorter lead times and simpler processes from Meiyachem?

Yes. Long experience and an unmatched portfolio of products and services enable Meiyachem to meet the customer's needs in terms of quality, scheduling and energy efficiency. Our intent is to simplify processes wherever it makes sense.

Will the products I use from Meiyachem continue to have the same quality, safety, and performance?

Yes. We will continue to manufacture and supply products at the same manufacturing locations, and every product will uphold the same standards of quality, safety, and performance.

What is Meiyachem doing about REACH?

Most of Meiyachem's products are pre-registered with the ECHA for REACH compliance. Some of items were full-REACH registered.

How can I place a sample order? and is there a charge?

Samples may be ordered via Meiyachem website and there is no associated charge.

What price can I get?

“Quick turnover and small profit” is a guiding principle of our sales promotion work. We maintain a flexible policy in price and make the maximum profit to customers.


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