Industrial Grade Phosphate Fertilizer Diammonium Phosphate (DAP)

• CAS No.: 7783-28-0
• Formula: (Nh4)2hpo4
• EINECS: 204-679-6
• Certification: ISO9001, ISO, SGS
• Application: Vegetables, Flowers, Fruit, Agriculture
• Appearance: Solid
• Model NO.: HH-900008
• Infection on Soil: Physiological Acid
• Chemical Character: Chemical Acid
• Release Type: Quick
• Production Method: Thermal Phosphate Fertilizer
• Solubility: Water Solubility
• Source: Chemical Phosphate Fertilizer
• Transport Package: 25kg/Bag
• Specification: 25kg/bag
• Trademark: henghao
• Origin: China
• HS Code: 2931900090
• Production Capacity: 99999999

Product Description

 

Diammonium phosphate refers to the standard product containing N18%, P2O548%, the crystal shape is flat oblique prism, the solubility in 25C water is 71%, and the pH of its saturated solution reaches 8, which is much higher than that of monoammonium phosphate. The phosphate rock powder is reacted under the condition of excessive NH, F solution, pH 6~7, and temperature of 100 degrees: to obtain diammonium phosphate. However, the general factory adopts the process developed by the Tennessee Valley Authority (TVA) of the United States, that is, , Since the saturated solution of diammonium phosphate is alkaline, applying it on acidic soil can reduce the fixation of iron and aluminum on phosphorus, so that phosphorus can maintain a high effectiveness, 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. Gray-white or dark gray particles, specific gravity 1.619, easily soluble in water, insoluble in ethanol. It has a certain hygroscopicity and is easily decomposed in humid air, and volatilizes  into ammonium dihydrogen phosphate. The aqueous solution is weakly alkaline, pH 8.0.

Product specifications are: 64% (N18: P2O546), 61% (N16: P2O545), 57% (N15: P2O542). In order to increase the storage resistance, some products are added with a coating agent during the production process, so that the appearance of the product is brown or yellow

Diammonium phosphate is a high-concentration quick-acting fertilizer, suitable for various crops and soils, especially for crops that like nitrogen and phosphorus.

Physical properties of the product: This product is easily soluble in water and has less solids after dissolution. It is suitable for the needs of various crops for nitrogen and phosphorus elements, especially suitable for base fertilizer, seed fertilizer and top dressing in arid and less rainy areas.

Application: High-performance nitrogen and phosphorus binary fertilizer, common specifications: physical neutral fertilizer, suitable for any soil and most crops, especially suitable for crops that prefer ammonium and phosphorus. It is used as a curing agent for urea-formaldehyde resin adhesive. It is formulated into a 20% aqueous solution and has the slowest curing speed. Also used as additive flame retardant. If a small amount of DAP is added to the natural rubber latex, the magnesium ions in the latex can be effectively eliminated without reducing the tensile strength of the natural latex after vulcanization.
Main components of the product: (NH4)2HPO4
 

 

Precautions
Physically neutral fertilizer, suitable for most crops and soils. To ensure safe application, it is best to isolate 7-10cm from the crop seeds. It should be applied early and deep.