Ammonium hypophosphite
Synonym(s):Ammonium phosphinate
- CAS NO.：7803-65-8
- Empirical Formula: H3N.H3O2P
- Molecular Weight: 83.03
- MDL number: MFCD00050356
- EINECS: 232-266-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-01-27 09:38:02
What is Ammonium hypophosphite?
Chemical properties
white crystals
The Uses of Ammonium hypophosphite
As catalyst in polyamide manufacture.
General Description
White crystalline solid. Sinks and mixes with water.
Air & Water Reactions
Water soluble. Ammonium hypophosphite liberates spontaneously flammable phosphine at about 240°C [Mellor 8:880 1946-47].
Reactivity Profile
Ammonium hypophosphite liberates spontaneously flammable phosphine at about 240°C [Mellor 8:880 1946-47]. Some inorganic materials, such as hypophosphites, tend to form explosive mixtures with perchloric acid when hot [Analyst 84:215 1959].
Hazard
Evolves flammable and toxic fumes on heating.
Health Hazard
Non-toxic or low toxicity unless heated to decomposition (240°C).
Flammability and Explosibility
Not classified
Purification Methods
Crystallise it from hot EtOH.
Properties of Ammonium hypophosphite
| Melting point: | 155-160 °C |
| Density | 1.634 [CRC10] |
| solubility | very soluble in H2O; slightly soluble in ethanol; insoluble in acetone |
| form | white hygroscopic crystals |
| color | white hygroscopic crystals, crystalline |
| Water Solubility | 1000 g/L |
| Merck | 13,530 |
| CAS DataBase Reference | 7803-65-8(CAS DataBase Reference) |
| EPA Substance Registry System | Ammonium hypophosphite (7803-65-8) |
Safety information for Ammonium hypophosphite
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Ammonium hypophosphite
| InChIKey | ZRDXIILBYDTYOA-UHFFFAOYSA-N |
Ammonium hypophosphite manufacturer
Victory Chemicals
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product: 7803-65-8 Ammonium hypophosphite 98%
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