Hypophosphorous acid
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- $10.16 - $4304.54
- Product name: Hypophosphorous acid
- CAS: 6303-21-5
- MF: HO2P
- MW: 63.980501
- EINECS:228-601-5
- MDL Number:MFCD02183592
- Synonyms:Diphosphoric(IV) acid;Hypophosphorous acid, 50 wt.% solution in water 1LT;Hypophosphorous acid (HPA);Hypophosphorous acid, 50 wt.% solution in H2O;Hypophosphorous Acid, 30 Percent (w/v) Solution;Hypophosphorous acid aqueous solution;Hypophosphorous Acid 50%/70% (HPA);Hypophosphorous acid solution 50 wt. % in H2O
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Brand
- American Custom Chemicals Corporation
- Atlantic Research Chemicals
- GFS CHEMICALS
- Sigma-Aldrich
- Thermo Scientific Chemicals
- Usbiological
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- 1g
- 5g
- 10g
- 25g
- *4x500g
- 50G
- 100g
- 250g
- 500mL
- 500G
- 1kg
- 2kg
- 2.5kg
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- 4x4kg
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberING0004334
- Product descriptionHYPOPHOSPHOROUS ACID 95.00%
- Packaging50G
- Price$2460.42
- Updated2021-12-16
- Buy
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberING0004334
- Product descriptionHYPOPHOSPHOROUS ACID 95.00%
- Packaging500G
- Price$4304.54
- Updated2021-12-16
- Buy
- ManufacturerAtlantic Research Chemicals
- Product numberAN002398
- Product descriptionHypophosphorous acid (50% w/w aq sol) 95
- Packaging1g
- Price$10.16
- Updated2026-05-23
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- ManufacturerAtlantic Research Chemicals
- Product numberAN002400
- Product descriptionHypophosphorous acid 95
- Packaging1g
- Price$10.16
- Updated2026-05-23
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- ManufacturerAtlantic Research Chemicals
- Product numberAN002398
- Product descriptionHypophosphorous acid (50% w/w aq sol) 95
- Packaging5g
- Price$15.24
- Updated2026-05-23
- Buy
- ManufacturerAtlantic Research Chemicals
- Product numberAN002400
- Product descriptionHypophosphorous acid 95
- Packaging5g
- Price$15.24
- Updated2026-05-23
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- ManufacturerAtlantic Research Chemicals
- Product numberAN002398
- Product descriptionHypophosphorous acid (50% w/w aq sol) 95
- Packaging10g
- Price$17.78
- Updated2026-05-23
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- ManufacturerAtlantic Research Chemicals
- Product numberAN002398
- Product descriptionHypophosphorous acid (50% w/w aq sol) 95
- Packaging25g
- Price$20.32
- Updated2026-05-23
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- ManufacturerAtlantic Research Chemicals
- Product numberAN002400
- Product descriptionHypophosphorous acid 95
- Packaging25g
- Price$20.32
- Updated2026-05-23
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- ManufacturerAtlantic Research Chemicals
- Product numberAN002400
- Product descriptionHypophosphorous acid 95
- Packaging10g
- Price$17.78
- Updated2026-05-23
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- ManufacturerGFS CHEMICALS
- Product number45102
- Product descriptionHypophosphorous acid 50%
- Packaging2.5kg
- Price$224.33
- Updated2021-12-16
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- ManufacturerGFS CHEMICALS
- Product number45101
- Product descriptionHYPOPHOSPHOROUS ACID SOLUTION, 50% AQUEOUS
- Packaging500G
- Price$109.14
- Updated2026-06-03
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- ManufacturerSigma-Aldrich
- Product number1.04633
- Product descriptionHypophosphorous acid 50% for analysis EMSURE?
- Packaging500mL
- Price$397
- Updated2026-04-30
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- ManufacturerSigma-Aldrich
- Product number214906
- Product descriptionHypophosphorous acid solution 50 wt. % in H2O
- Packaging500g
- Price$130
- Updated2026-04-30
- Buy
- ManufacturerSigma-Aldrich
- Product number214906
- Product descriptionHypophosphorous acid solution 50 wt. % in H2O
- Packaging4kg
- Price$688
- Updated2026-04-30
- Buy
- ManufacturerSigma-Aldrich
- Product number214906
- Product descriptionHypophosphorous acid solution 50 wt. % in H2O
- Packaging4x4kg
- Price$1690
- Updated2026-04-30
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| American Custom Chemicals Corporation | ING0004334 | HYPOPHOSPHOROUS ACID 95.00% | 50G | $2460.42 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | ING0004334 | HYPOPHOSPHOROUS ACID 95.00% | 500G | $4304.54 | 2021-12-16 | Buy |
| Atlantic Research Chemicals | AN002398 | Hypophosphorous acid (50% w/w aq sol) 95 | 1g | $10.16 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002400 | Hypophosphorous acid 95 | 1g | $10.16 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002398 | Hypophosphorous acid (50% w/w aq sol) 95 | 5g | $15.24 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002400 | Hypophosphorous acid 95 | 5g | $15.24 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002398 | Hypophosphorous acid (50% w/w aq sol) 95 | 10g | $17.78 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002398 | Hypophosphorous acid (50% w/w aq sol) 95 | 25g | $20.32 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002400 | Hypophosphorous acid 95 | 25g | $20.32 | 2026-05-23 | Buy |
| Atlantic Research Chemicals | AN002400 | Hypophosphorous acid 95 | 10g | $17.78 | 2026-05-23 | Buy |
| GFS CHEMICALS | 45102 | Hypophosphorous acid 50% | 2.5kg | $224.33 | 2021-12-16 | Buy |
| GFS CHEMICALS | 45101 | HYPOPHOSPHOROUS ACID SOLUTION, 50% AQUEOUS | 500G | $109.14 | 2026-06-03 | Buy |
| Sigma-Aldrich | 1.04633 | Hypophosphorous acid 50% for analysis EMSURE? | 500mL | $397 | 2026-04-30 | Buy |
| Sigma-Aldrich | 214906 | Hypophosphorous acid solution 50 wt. % in H2O | 500g | $130 | 2026-04-30 | Buy |
| Sigma-Aldrich | 214906 | Hypophosphorous acid solution 50 wt. % in H2O | 4kg | $688 | 2026-04-30 | Buy |
| Sigma-Aldrich | 214906 | Hypophosphorous acid solution 50 wt. % in H2O | 4x4kg | $1690 | 2026-04-30 | Buy |
Properties
Melting point :-25 °C
Boiling point :108 °C (759.8513 mmHg)
Density :1.206 g/mL at 20 °C(lit.)
vapor pressure :<17 mmHg ( 20 °C)
storage temp. :no restrictions.
solubility :very soluble in H2O, ethanol, ethyl ether
pka :pK1 1.1.
form :hygroscopic crystals or colorless oily liquid
color :Colorless
PH :pKa1= 1.00(25℃)
Water Solubility :SOLUBLE
Merck :13,4894
Stability :Stable. Incompatible with strong bases. Reacts violently with oxidizing agents, strong bases, mercury (II) nitrate and mercury (II) oxide. Do not heat above 100 C.
InChI :1S/H3O2P/c1-3-2/h3H2,(H,1,2)
InChIKey :GQZXNSPRSGFJLY-UHFFFAOYSA-N
SMILES :O[PH2]=O
CAS DataBase Reference :6303-21-5(CAS DataBase Reference)
NIST Chemistry Reference :Hypophosphorous acid(6303-21-5)
EPA Substance Registry System :Phosphinic acid (6303-21-5)
Boiling point :108 °C (759.8513 mmHg)
Density :1.206 g/mL at 20 °C(lit.)
vapor pressure :<17 mmHg ( 20 °C)
storage temp. :no restrictions.
solubility :very soluble in H2O, ethanol, ethyl ether
pka :pK1 1.1.
form :hygroscopic crystals or colorless oily liquid
color :Colorless
PH :pKa1= 1.00(25℃)
Water Solubility :SOLUBLE
Merck :13,4894
Stability :Stable. Incompatible with strong bases. Reacts violently with oxidizing agents, strong bases, mercury (II) nitrate and mercury (II) oxide. Do not heat above 100 C.
InChI :1S/H3O2P/c1-3-2/h3H2,(H,1,2)
InChIKey :GQZXNSPRSGFJLY-UHFFFAOYSA-N
SMILES :O[PH2]=O
CAS DataBase Reference :6303-21-5(CAS DataBase Reference)
NIST Chemistry Reference :Hypophosphorous acid(6303-21-5)
EPA Substance Registry System :Phosphinic acid (6303-21-5)
Safety Information
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Description
Hypophosphorous acid is primarily used for electroless nickel plating. It is involved in the reduction of arenediazonium salts. It acts as an additive in Fischer esterification reactions. Also, it serves as a neutralizing agent, antioxidant, catalyst in polymerization and poly condensation, and wetting agent. Further, it is used in the formulation of pharmaceuticals, discoloration of polymers, water treatment and retrieval of precious or non-ferrous metals. In addition to this, it is used as bleaching agents for plastics, synthetic fibers, decolorizing agent and for color stabilization during the manufacture of chemicals and several plastics.More related product prices
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Suppliers and manufacturers
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Hypophosphorous Acid
CAS:6303-21-5
