Ammonium phosphate dibasic
- CAS No.
- 7783-28-0
- Chemical Name:
- Ammonium phosphate dibasic
- Synonyms
- DAP;DIAMMONIUM PHOSPHATE;DIAMMONIUM HYDROGEN PHOSPHATE;diammonium;DNPEP;SEC-AMMONIUM HYDROGEN PHOSPHATE;Ammonium hydrogen orthophosphate;ASPEP;pelor;FYREX
- CBNumber:
- CB0687340
- Molecular Formula:
- H9N2O4P
- Molecular Weight:
- 132.06
- MOL File:
- 7783-28-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/15 19:00:21
| Melting point | 155 °C (dec.)(lit.) |
|---|---|
| Density | 1.203 g/mL at 25 °C |
| vapor pressure | 0.076Pa at 20℃ |
| RTECS | TB9385000 |
| storage temp. | -20°C |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Powder |
| color | White |
| Specific Gravity | 1.619 |
| PH | 7.6-8.2 (100g/l, H2O, 20℃) |
| Odor | wh. cryst. or powd., odorless, cooling salty taste |
| Water Solubility | 58 g/ 100mL (10 ºC) |
| λmax |
λ: 260 nm Amax: 0.065 λ: 280 nm Amax: 0.065 |
| Merck | 14,542 |
| Stability | Stable. Incompatible with strong acids, strong bases, strong oxidizing agents. |
| InChIKey | MNNHAPBLZZVQHP-UHFFFAOYSA-N |
| LogP | -2.148 (est) |
| CAS DataBase Reference | 7783-28-0(CAS DataBase Reference) |
| EPA Substance Registry System | Diammonium phosphate (7783-28-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi,Xn,N | |||||||||
| Risk Statements | 36/37/38-20/21/22-50 | |||||||||
| Safety Statements | 26-36-61-37/39 | |||||||||
| RIDADR | UN 3465 6.1 / PGIII | |||||||||
| WGK Germany | 1 | |||||||||
| F | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 31053000 | |||||||||
| Toxicity | LD50 orally in Rabbit: 6500 mg/kg LD50 dermal Rabbit > 7950 mg/kg | |||||||||
| NFPA 704 |
|
Ammonium phosphate dibasic price More Price(34)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | A5764 | Ammonium phosphate dibasic reagent grade, ≥98.0% | 7783-28-0 | 100G | ₹2424.8 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | A5764 | Ammonium phosphate dibasic reagent grade, ≥98.0% | 7783-28-0 | 500G | ₹2966.05 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | A5764 | Ammonium phosphate dibasic reagent grade, ≥98.0% | 7783-28-0 | 1KG | ₹5488.28 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | A5764 | Ammonium phosphate dibasic reagent grade, ≥98.0% | 7783-28-0 | 2.5KG | ₹6419.23 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 79762 | Ammonium phosphate dibasic suitable for HPLC, LiChropur?, 99.0-101.0% (T) | 7783-28-0 | 50G | ₹2782.03 | 2022-06-14 | Buy |
Ammonium phosphate dibasic Chemical Properties,Uses,Production
Description
Ammonium phosphates include mono- and diammonium orthophosphates and ammonium polyphosphates. As discussed below, these are made directly by reaction anhydrous ammonia with orthophosphoric acid or superphosphoric acid. Both are dry crystalline materials with good handling properties.
Chemical Properties
white crystalline powder
Physical properties
Colorless monoclinic crystal; saline taste; refractive index 1.52; density 1.619 g/cm3; melts at 155°C (decomposes); very soluble in water (57 g/100 g at 10°C and 106.7g/100g at 70°C, respectively); insoluble in alcohol, acetone, and liquid ammonia.
Uses
Ammonium Phosphate Dibasic is a general purpose food additive that is readily soluble in water, with approximately 57 g dissolving in 100 g of water at 0°c. a 1% solution has a ph of 7.6–8.2. it is used as a dough strengthener, firming agent, leavening agent, and ph control agent. its uses include baked goods, alcoholic beverages, condiments, and puddings. in bakery products, up to 0.25 part per 100 parts by weight of flour is used.
Preparation
(NH4)2HPO4 is made by reacting ammonia with phosphoric acid:
2NH3 + H3PO4 → (NH4)2HPO4.
Definition
ChEBI: An inorganic phosphate, being the diammonium salt of phosphoric acid.
Agricultural Uses
With excess ammonia, the technical grade of diammonium phosphate (DAP) contains 16 to 18% nitrogen and 20to 21 % phosphorus.
DAP is an important fertilizer as well as an intermediate in the production of complex fertilizers and bulk blends.
Contact allergens
A flame retardant caused contact dermatitis in surgical personnel. It was due to excessive residual concentrations in surgical garbs.
Safety Profile
Low to moderate toxicity. See also PHOSPHATES. When heated to decomposition it emits very toxic fumes of POx, NOx, and NH3.
Potential Exposure
Used in fireproofing of textiles; wood and paper; in soldering flux; as a fertilizer; a buffer; in baking powder and food additives.
Shipping
There are no DOT/UN listed requirements.
Purification Methods
Crystallise it from water (1mL/g) between 70o and 0o. Its solubility in H2O is 59% at room temperature and 200% at the boiling point. It slowly evolves NH3 and should be stored in a well-stoppered container. After one crystallisation, ACS grade salt had Fe, Mo, Na, Se and Ti at 1, 0.2, 1.4, 0.2 and 0.8ppm, respectively. [Gmelin’s, Ammonium (8th edn) 23 pp422-426 1936.]
Incompatibilities
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Contact with air causes this chemical to produce anhydrous ammonia fumes.
Waste Disposal
May be flushed to sewer with huge volumes of water.
Ammonium phosphate dibasic Preparation Products And Raw materials
Raw materials
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