Inorganic acids
HYPOPHOSPHORUS ACID AR
Phosphinic acid
- Article code
- 04154
- CAS
- 6303-21-5
- Grade
- AR
- Purity
- 50%
- Category
- Inorganic acids
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Properties
- Article No.
- 04154
- Grade
- AR
- Purity
- 50%
- CAS No.
- 6303-21-5
- Molecular Formula
- HPH2O2
- Molecular Weight
- 66.00
- H.S. Code
- 2811.1920
- Shelf Life
- 60 Months
- Supply conditions
- EUC Required
Product information
| Article No. | 04154 | Grade | AR |
| Purity | 50% | CAS No. | 6303-21-5 |
| Molecular Formula | HPH2O2 | Molecular Weight | 66.00 |
| H.S. Code | 2811.1920 | Shelf Life | 60 Months |
Physical Properties
| Physical state at 20 °C | Liquid | Colour | Clear Colorless |
| Odour | Odorless | pH value | 1 |
| Melting point/ Freezing point [°C] | -25°C | Decomposition point [°C] | 108°C |
| Boiling point [°C] | 108°C | Vapour pressure [20°C] | < 17 mm Hg 20 °C |
| Vapour pressure mm/Hg | < 17 mm Hg 20 °C | Density [g/cm3] | 1.206 |
| Solubility in water [% weight] | Soluble in water |
Specifications
| Appearance | A clear, colourless liquid | Assay (alkalimetric) | Min 49.5% |
| Phosphorous acid & Phosphoric acid (as H3PO3) | Max 2% | Chloride (Cl) | Max 0.015% |
| Total sulphur (as SO4) | Max 0.02% | Arsenic (As) | Max 0.0005% |
| Barium (Ba) | Max 0.005% | Calcium (Ca) | Max 0.005% |
| Cadmium (Cd) | Max 0.0001% | Copper (Cu) | Max 0.0005% |
| Iron (Fe) | Max 0.005% | Potassium (K) | Max 0.001% |
| Manganese (Mn) | Max 0.0005% | Nickel (Ni) | Max 0.0005% |
| Lead (Pb) | Max 0.0005% |
Packaging options
- 500 ml (00500)
- 2500 ml (02500)
Details
HYPOPHOSPHORUS ACID AR Phosphinic acid EUC Required MSDS DE EN FR KO PT ES TH TR COAs Packings 500 ml (00500) 2500 ml (02500) 2500 ml (02500) Print friendly version Article No. 04154 Grade AR Purity 50% CAS No. 6303-21-5 Molecular Formula HPH 2 O 2 Molecular Weight 66.00 H.S. Code 2811.1920 Shelf Life 60 Months Physical Properties Physical state at 20 °C Liquid Colour Clear Colorless Odour Odorless pH value 1 Melting point/ Freezing point [°C] -25°C Decomposition point [°C] 108°C Boiling point [°C] 108°C Vapour pressure [20°C] Vapour pressure mm/Hg Density [g/cm3] 1.206 Solubility in water [% weight] Soluble in water Specifications Appearance A clear, colourless liquid Assay (alkalimetric) Min 49.5% Phosphorous acid & Phosphoric acid (as H3PO3) Max 2% Chloride (Cl) Max 0.015% Total sulphur (as SO4) Max 0.02% Arsenic (As) Max 0.0005% Barium (Ba) Max 0.005% Calcium (Ca) Max 0.005% Cadmium (Cd) Max 0.0001% Copper (Cu) Max 0.0005% Iron (Fe) Max 0.005% Potassium (K) Max 0.001% Manganese (Mn) Max 0.0005% Nickel (Ni) Max 0.0005% Lead (Pb) Max 0.0005% Safety Information and Hazard Symbols Symbol: GHS05 Signal Word: Danger UN No.: 3264 IMCO Class No.: 8 Packing Group: II Hazardous Statement: H314 Precaution Statement: P280-P305 + P351 + P338-P310 Revision Date: 24-Sep-2026 Home Lab Chemicals Acids-Inorganic HYPOPHOSPHORUS ACID