| Formula / Notation | H3O2P |
|---|---|
| CAS Number | 6303-21-5 |
| Molecular Weight | 65.996 |
| Melting Point | 26.5 °C |
| Boiling Point | Decomposes upon heating >133 °C |
| Density | Marketed in aqueous solutions of varying concentrations, 50% (density 1.274), 30-32% (density 1.13), |
| Solubility | Miscible with water |
| Appearance | Hypophosphorous acid appears as colorless oily liquid or deliquescent crystals with a sour odor. Density 1.439 g / cm3. Melting point 26.5 °C. Inhalation of vapors irritates or burns the respirato... |
| Also Known As | phosphinic acid; Acid, Phosphinic; RefChem:929168; DTXCID401012094; 228-601-5; 6303-21-5; 8B1RL9B4ZJ; CHEBI:29031; DTXSID90873902; Hydroxyphosphine oxide |
| Category | Acids |
What is Hypophosphorous acid?
Hypophosphorous acid (H3O2P) is an acid that appears as Hypophosphorous acid appears as colorless oily liquid or deliquescent crystals with a sour odor. Density 1.439 g / cm3. Melting point 26.5 °C. Inhalation of vapors irritates or burns the respirato.... It has a molecular weight of 65.996 g/mol. Its IUPAC name is phosphinic acid. Boiling point: Decomposes upon heating >133 °C. Melting point: 26.5 °C.
Formula & Notation
IUPAC Name: phosphinic acid
Other Names / Synonyms: phosphinic acid; Acid, Phosphinic; RefChem:929168; DTXCID401012094; 228-601-5; 6303-21-5; 8B1RL9B4ZJ; CHEBI:29031; DTXSID90873902; Hydroxyphosphine oxide
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 26.5 °C |
| Boiling Point | Decomposes upon heating >133 °C |
| Density | Marketed in aqueous solutions of varying concentrations, 50% (density 1.274), 30-32% (density 1.13), |
| Molecular Weight | 65.996 |
| Solubility | Miscible with water |
| Appearance | Hypophosphorous acid appears as colorless oily liquid or deliquescent crystals with a sour odor. Density 1.439 g / cm3. Melting point 26.5 °C. Inhalation of vapors irritates or burns the respirato... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Hypophosphorous acid (H3O2P) is an acid that appears as Hypophosphorous acid appears as colorless oily liquid or deliquescent crystals with a sour odor. Density 1.439 g / cm3. Melting point 26.5 °C. Inhalation of vapors irritates or burns the respirato.... It has a molecular weight of 65.996 g/mol. Its IUPAC name is phosphinic acid. Boiling point: Decomposes upon heating >133 °C. Melting point: 26.5 °C.
Used in industrial chemical synthesis, fertilizer production, battery electrolytes, metal processing, and laboratory acid-base reactions.
Corrosive. Causes severe burns to skin, eyes, and respiratory tract. Wear appropriate PPE including gloves, goggles, and lab coat. Consult SDS before use.
The formula or notation for Hypophosphorous acid is: H3O2P