Diammonium Hydrogen Phosphate (DAP) CAS 7783-28-0
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Category：Other Food Additives Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Product name: Diammonium Hydrogen Phosphate (DAP) Molecular Formula: (NH4)2HPO4 Molecular Weight: 132.06 CAS No.: 7783-28-0
| Attribute | Details |
|---|---|
| Chemical Name | Diammonium Hydrogen Phosphate |
| Abbreviation | DAP |
| CAS Number | 7783-28-0 |
| Formula | (NH4)2HPO4 |
| Molecular Weight | 132.06 g/mol |
| Appearance | White crystalline salt |
| Solubility | Highly soluble in water |
| Density | 1.619 g/cm³ (approx.) |
| NPK Value | 21-53-0 (Nitrogen-Phosphorus-Potassium) |
| Applications | Used as a key ingredient in agricultural fertilizers, flame retardants, and raw material for liquid complex fertilizers |
| Stability | Stable under normal conditions; avoid mixing with fertilizers containing calcium and magnesium |
| Storage | Store in cool, dry, and well-ventilated areas, away from moisture and direct sunlight |
| Safety | Wear protective gear when handling; avoid contact with eyes, skin, and clothing; refer to the safety data sheet for detailed safety information |
7783-28-0 – Names and Identifiers
| Name | Ammonium phosphate |
| Synonyms | phos-chek202 phos-chek259 Ammonium phosphate Diammonium Phosphate Di-Ammonium Phosphate SEC AMMONIUM PHOSPHATE PHOSPHORUS ICP STANDARD secondaryammoniumphosphate Ammonium phosphate dibasic Ammonium hydrogen phosphate Ammonium phosphate, dibasic Diammonium hydrogenphosphate phosphatedibasiqued’ammonium Diammonium hydrogen phosphate Phosphoricacid,diammoniumsalt SEC-AMMONIUM HYDROGEN PHOSPHATE Ammonium Hydrogen Orthophosphate di-Ammonium hydrogen orthophosphate Phosphorus ICP standard solution Fluka |
| CAS | 7783-28-0 |
| EINECS | 231-987-8 |
| InChI | InChI=1/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4)/p-1 |
| InChIKey | MNNHAPBLZZVQHP-UHFFFAOYSA-N |
7783-28-0 – Physico-chemical Properties
| Molecular Formula | H9N2O4P |
| Molar Mass | 132.06 |
| Density | 1.203g/mLat 25°C |
| Melting Point | 155°C (dec.)(lit.) |
| Water Solubility | 58 g/ 100mL (10 ºC) |
| Solubility | H2O: 1M at20°C, clear, colorless |
| Vapor Presure | 0.076Pa at 20℃ |
| Appearance | White crystalline powder |
| Specific Gravity | 1.619 |
| Color | White |
| Maximum wavelength(λmax) | [‘λ: 260 nm Amax: 0.065’, , ‘λ: 280 nm Amax: 0.065’] |
| Merck | 14,542 |
| PH | 7.6-8.2 (100g/l, H2O, 20℃) |
| Storage Condition | -20°C |
| Stability | Stable. Incompatible with strong acids, strong bases, strong oxidizing agents. |
| MDL | MFCD00010891 |
| Physical and Chemical Properties | Colorless transparent monoclinic crystal or white powder. density 1.619 soluble in water, insoluble in alcohol, acetone and ammonia. |
| Use | Used for printing plate making, medicine, fire prevention, electron tube, etc |
7783-28-0 – Risk and Safety
| Risk Codes | R36/37/38 – Irritating to eyes, respiratory system and skin. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R50 – Very Toxic to aquatic organisms |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. S37/39 – Wear suitable gloves and eye/face protection |
| UN IDs | UN 3465 6.1 / PGIII |
| WGK Germany | 1 |
| RTECS | TB9385000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 31053000 |
| Toxicity | LD50 orally in Rabbit: 6500 mg/kg LD50 dermal Rabbit > 7950 mg/kg |
Description
Colorless transparent monoclinic crystal or white powder. Easily soluble in water, insoluble in alcohol, acetone and ammonia.
Applications
In industry, it is used as feed additive, flame retardant and fire extinguishing agent ingredient, etc. It is used as analytical reagent and buffer. It is a kind of high efficient fertilizer and water softener widely used in vegetables, fruits, rice and wheat; Yeast food, etc. In the food industry, it is used as a leavening agent for eating Chemicalbook products, a dough conditioner, a yeast food, and a fermentation assistant for brewing. It can be used as a buffer. Used as feed additive for ruminants. It is mainly used as high concentration nitrogen and phosphorus compound fertilizer for printing, plate making, medicine, fire prevention, electron tube and other purposes.
Specification
Specification Packing 25kg/ bag or as per requirement. Storage Store in a cool dry place.
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