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99% Phosphorous Acid H3PO3 Powder Phosphoric Acid
Model Number: HM03003
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.


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.
Specification of 99% Phosphorous Acid H3PO3 Powder Phosphoric Acid
Inspection items | The degree of the products | ||
Best Grade Products | Best Grade Products | First grade products | |
Main contents(counted with H3PO3) | 99 | 98.5 | 98 |
Iron(counted with Fe) | 0.001 | 0.0015 | 0.0020 |
Chloride(counted with C1) | 0.008 | 0.01 | 0.01 |
Sulfate(counted with SO4) | 0.001 | 0.002 | 0.002 |
Phosphate(counted with SO4) | 0.1 | 0.2 | 0.2 |
Complexion | White crystal | White crystal | White crystal |
Water solution experiments | White crystal | Clear and achromatic | Clear and achromatic
|
1.woven bag with inner plastic bag Net weight:25kg
2.design packing according to customer's requirements






Q:What is the minimum order?
A:25Tons,or 1 container
Q:How can I get free samples for testing?
A:Kindly send us your address, we will send the Free samples to you.
Q: How does your products do regarding quality control?
A:1. All our products have to be checked strictly before export.
2. Customer feedback form would be offered for every purchasing order.


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