White Crystal 50kg Diammonium Phosphate Powder PH8 For Plant

Diammonium Phosphate DAP Diammonium Hydrogen Phosphate White Granular Crystal

Diammonium Phosphate (DAP)

Molecular formula: (NH₄)₂HPO₄
Molecular weight: 132.0
Standard executed: HG/T4132-2010(Technical grade)
CAS Number: 7783-28-0

Product information:

Diammonium phosphate DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH4)2(HPO4) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid. Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation: 

(NH4)2HPO4(s) ⇌ NH3(g) + (NH4)H2PO4(s)

At 100 °C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.

According to the diammonium phosphate MSDS from CF Industries, Inc., decomposition starts as low as 70 °C: "Hazardous Decomposition Products: Gradually loses ammonia when exposed to air at room temperature. Decomposes to ammonia and monoammonium phosphate at around 70 °C (158 °F). At 155 °C (311 °F), DAP emits phosphorus oxides, nitrogen oxides and ammonia."

Guaranteed Technical Specifications :

Properties:
White granular crystal, relative density at 1.619g/cm³, melting point at 155^.C , easily soluble in water, insoluble in alcohol, PH value of 1% solution is 8.0
 

Application:

DAP is used as a fertilizer. When applied as plant food, it temporarily increases the soil pH, but over a long term the treated ground becomes more acidic than before upon nitrification of the ammonium. It is incompatible with alkaline chemicals because its ammonium ion is more likely to convert to ammonia in a high-pH environment. The average pH in solution is 7.5–8. The typical formulation is 18-46-0 (18% N, 46% P2O5, 0% K2O).

DAP can be used as a fire retardant. It lowers the combustion temperature of the material, decreases maximum weight loss rates, and causes an increase in the production of residue or char. These are important effects in fighting wildfires as lowering the pyrolysis temperature and increasing the amount of char formed reduces that amount of available fuel and can lead to the formation of a firebreak. It is the largest component of some popular commercial firefighting products and is the ingredient in "fire retardant" cigarettes.

DAP is also used as a yeast nutrient in winemaking and mead-making; as an additive in some brands of cigarettes purportedly as a nicotine enhancer; to prevent afterglow in matches, in purifying sugar; as a flux for soldering tin, copper, zinc and brass; and to control precipitation of alkali-soluble and acid-insoluble colloidal dyes on wool.

Packing and storage:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.

Company Introduction:

Sichuan Kangze Hongyun International Trade Co., LTD., founded in June 2021, located in High-tech Zone, Chengdu,

Sichuan province, China,with a registered capital of 10 million yuan, is committed to all kinds of chemical import and

export trade and domestic trade.

It is a wholly owned subsidiary of Sichuan Shifang Konlon Chemical Co., LTD .,which established in August 2002,located

in the north of Economic Development Zone, Shifang City ,Sichuan Province,covers an area of 50,000 squaremeters.

Since its establishment, we has been making unremitting efforts around the upgrading of fine phosphate product

technology and independent innovation.Through the ISO9001 quality certification system.We attaches great importance

to the development and expansion of the market, in Tianjin, Guangzhou, Xinjiang, many places with offices and warehouses.