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Ammonium phosphate dibasic CAS#7783-28-0

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Chemical Name：Ammonium phosphate dibasic

CAS No.:7783-28-0

Molecular Formula：H9N2O4P

Molecular weight:132.06

Sample: Available

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Product Details

Products Description of Ammonium phosphate dibasic CAS#7783-28-0

Diammonium phosphate, also known as diammonium hydrogen phosphate (DAP), is a compound fertilizer containing two nutrients, nitrogen and phosphorus. Diammonium hydrogen phosphate is a high-concentration quick-acting fertilizer that is easily soluble in water and has less solids after dissolution. It is suitable for various crops and soils, especially for crops that prefer nitrogen and require phosphorus. It can be used as base fertilizer or topdressing, and deep application is recommended. Diammonium phosphate refers to a standard product containing 18% N and 48% P2O5. Its crystal shape is flat-oblique prisms, and its solubility in water at 25°C is 71%. The pH of its saturated solution reaches 8, which is much higher than that of monoammonium phosphate. Since the saturated solution of diammonium phosphate is alkaline, applying it to acidic soil can reduce the fixation of phosphorus by iron and aluminum, so that phosphorus maintains a high effectiveness, so it is recommended that diammonium phosphate be used on acidic soil.

Ammonium phosphate dibasic Chemical Properties

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 Information

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
Hazardous Substances Data	7783-28-0(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 6500 mg/kg LD50 dermal Rabbit > 7950 mg/kg

Product Application of Ammonium phosphate dibasic CAS#7783-28-0

1. Diammonium hydrogen phosphate fertilizer grade is mainly used as high-concentration nitrogen-phosphorus compound fertilizer; industrial grade is used to impregnate wood and fabrics to increase their durability. It can also be used as dry powder fire extinguishing agent, phosphorus for fluorescent lamps; it is also used in printing plate making, the manufacture of electron tubes, ceramics, enamel, etc., and biochemical treatment of wastewater; military industry uses it as a flame retardant for rocket engine motor insulation materials

2. Used as a feed additive for ruminants.

3. Used as food leavening agent, dough regulator, yeast food, and fermentation aid in brewing in the food industry.

4. Used as analytical reagents and buffers.

5. Water softener; yeast food, etc.

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