1. Chemical name: hydrogen phosphate dilate
Second, molecular formula: (NH4) 2hpo4
Third, molecular weight: 132.06
Fourth, CAS: 7783-28-0
V. Performance: tasteless, white powder or white transparent crystals, easy to dissolve in water, the aquatic solution is alkaline, insoluble in ethanol and acetone, and unstable in the air.
6. Uses: buffer, dough regulator, acidity regulator, puff agent, yeast food, fermented assistant. For baking food, mellow drinks, wine, pudding, condiments.
7. Packaging: Line lining polyethylene plastic bag, coat plastic woven bag, 25kg per bag.
8. Storage and transportation: It should be stored in drying, ventilated and clean warehouses, lightly put in lightly to prevent moisture and heating, and prevent rainy from moisture during transportation. It should be separated from toxic items.
Diammonium phosphate refers to a standard product containing 18% N and 548% P2O. The crystal shape is oblique prism. The solubility in 25C water is 71%. The pH value 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 fixing effect of iron and aluminum on phosphorus, so that phosphorus can maintain a high availability, so it is recommended to use diammonium phosphate on acidic soil. Diammonium phosphate, also known as diammonium hydrogen phosphate (DAP), is a compound fertilizer containing nitrogen and phosphorus. Off-white or dark gray particles, specific gravity 1.619, easily soluble in water, insoluble in ethanol. It has a certain degree of hygroscopicity, and is easy to decompose in humid air. The aqueous solution is slightly alkaline, pH8.0.
Application:
1. Ammonium phosphate is a kind of water soluble quick acting compound fertilizer,
in proportion to the content of AP²O5 and TN about 5.44:1, is one of the main varieties of high concentrations of phosphate and compound fertilizer.
2. Commonly used as additional fertilizer, is main raw material of compound fertilizer.
3. It is widely used in rice, wheat, corn, sorghum, cotton, fruits, vegetables and other all food crops and economic crops; Application to all kinds of soil, especially in drought
little rain areas
4 As a fertilizer, ammonium phosphate was the most suitable for crop growth.
5.In acidic soil than superphosphate, ammonium sulfate, in the alkaline soil than other
fertilizer superiority
Component |
Range |
Typical |
Main content |
99%min |
99% |
P2O5 |
53%min |
53% |
NasNH4 |
20.8%min |
21.0% |
Moisture |
0.2%max |
0.2% |
Insoluble |
0.1%max |
0.1% |
As |
0.0003%max |
0.0003% |
Pb |
0.001%max |
0.001% |
F |
0.002%max |
0.002% |
Attentions:
1 Aammonium phosphate was acidic in the soil, and the seed was too close to the
potential adverse effect.
2 Not with alkaline fertilizer mixed use, so as not to reduce fertilizer efficiency. For
example the acid soil use lime in the South, using ammonium phosphate should
be during few days after that.