Diammonium Phosphate
P2O5 44-48 % ,N2 18-19.5 %, H2O 1.5 Max %, PARTICLE SIZE 1-4 mm 85% Min, DENSITY 0.92-0.98 gr/cc
DAP is used as a fertilizer,a fire retardant, a yeast nutrient in winemaking and mead-making ,as an additive in some brands of cigarettes,as a flux for soldering tin, copper, zinc and brass ,
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Diammonium phosphate
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Diammonium phosphate (DAP) (chemical formula (NH4)2HPO4, IUPAC name diammonium hydrogen phosphate) 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:[2]
(NH4)2HPO4(s) NH3(g) + NH4H2PO4(s)
log PmmHg = 3063 / T + 175 log T + 3.3
where:
P = the resultant dissociation pressure of ammonia
T = absolute temperature (K)
At 100 C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.[3]
Accordingly, to MSDS of DiammoniumPhosphate 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."
Uses
DAP is used as a fertilizer.[4] 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 7.5â??8.[5] The typical formulation is 18-46-0 (18% N, 46% P2O5, 0% K2O).[5]
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.[6] 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.[7]
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.[1]
Specification of Diammonium Phosphate
P2O5 44-48 %
N2 18-19.5 %
H2O 1.5 Max %
PARTICLE SIZE 1-4 mm 85% Min
DENSITY 0.92-0.98 gr/cc
Diammonium phosphate (DAP) is a widely used fertilizer that provides a high concentration of phosphorus and nitrogen nutrients. It is composed of two ammonium ions and one phosphate ion. DAP is a water-soluble salt and is often used in agricultural settings to enhance plant growth. Here are some key points about diammonium phosphate: The nitrogen in DAP is readily available for plants, while phosphorus is essential for root development, flowering, and fruiting. Solubility: Diammonium phosphate is highly water-soluble, making it easy to apply as a liquid fertilizer or to dissolve in irrigation systems. pH and Acidity: DAP tends to be slightly acidic, which can contribute to lowering the pH of the soil over time. It is essential to monitor soil pH when using fertilizers to prevent overly acidic conditions. Application: DAP is commonly used as a dry granular fertilizer that can be broadcast on the soil surface. It can also be dissolved in water and applied as a liquid fertilizer through irrigation systems, providing quick nutrient availability to plants. Uses: Diammonium phosphate is suitable for a variety of crops, including grains, fruits, vegetables, and legumes. It is often used during the early stages of plant growth to promote root development. Storage: DAP should be stored in a cool, dry place to prevent moisture absorption and caking. Safety Considerations: When handling DAP, it's important to follow safety guidelines and use appropriate protective equipment to prevent skin or eye contact and inhalation. Compatibility: Diammonium phosphate is compatible with many other fertilizers and can be used in combination with them to provide a broader spectrum of nutrients. Environmental Impact: Like other fertilizers, the application of DAP should be done responsibly to minimize environmental impact, such as nutrient runoff into water bodies.
Product Name: Diammonium Phosphate (DAP) "Type: Food Additives Origin: China CAS No.: 7783-28-0 AUCO No.: 300 Packing: 25kg bag" Items Standard Main content (NH4) 2HPO4 99% P2O5 Phosphorus Pentoxide 53% Nitrogen, as N 20.8% Moisture 0.1% Heavy metals, as Pb 0.001% SO4 0.5% Arsenic, as As 0.0003% Fluoride 10 ppm Water insoluble 0.10% PH (1% water solution) 7.8-8.2 Na2O 0.001% K2O 0.01% Density 20--40 mesh Insoluble matter NIL Any foreign particle NIL
Diammonium Phosphate (DAP) Type: Food Additives Origin: China CAS No.: 7783-28-0 AUCO No.: 300 Packing: 25kg bag
Diammonium Phosphate Fertilizer DAP Chemical formula:(NH4)2HPO4 Molecular weight:132.0 Standard executed :HG/T4132-2010(Tech grade) GB 30613-2014 (Food grade) Property:White crystal, Relative density is 1.619g/cm3, melting point is 155�?�¢??, easily soluble in water , insoluble in alcohol, PH value of 1%solution is 8.0 Uses:As a fire-prevention agent for fabric, timber and paper. Also as a raw maerials for ammonium polyphosphate of high polymerization. It may be used for makeding printing plates; in food industry it is mainly used as a fermentation agent, nourishment and so on; In agriculture, it is used as a high effective non-chloride N,P compound fertilizer and containing totally 74% fertilizer elements, it is often used as a basic raw material for N,P and K compound fertilizer. Packing:Plastic woven bag. Net weight 25 Kg, 50Kg ,1000Kg , store at a cool, dry and well ventilated place.
Description: * Diammonium Phosphate (DAP) is a highly effective phosphorus and nitrogen fertilizer suitable for a variety of crops and soil types. This product provides essential nutrients that promote vigorous root development, increased crop yield, and enhanced plant resilience. Specifications: Total Nitrogen (N): 18 + 0.5% Total P O: Minimum 46% Citrate Soluble P O (Available PO): 44.5 + 0.5% Water Soluble P O (Available PO): 41 + 0.5% Arsenic (As): 14 ppm Cadmium (Cd): 12 ppm Nickel (Ni): 45 ppm Chromium (Cr): 180 ppm Moisture: Maximum 1.5% Hardness: 4 kg pH (1 wt/wt % solution): 7-8 Packaging Options: * The product is available in 25 kg, 50 kg, and 1000 kg bags, or in bulk quantities, according to customer requirements.
Diammonium phosphate (DAP) is a widely used fertilizer that provides a high concentration of phosphorus and nitrogen nutrients. It is composed of two ammonium ions and one phosphate ion. DAP is a water-soluble salt and is often used in agricultural settings to enhance plant growth. Here are some key points about diammonium phosphate: Nutrient Composition: Diammonium phosphate is a good source of both nitrogen and phosphorus, with nitrogen content in the ammonium form and phosphorus in the phosphate form. The nitrogen in DAP is readily available for plants, while phosphorus is essential for root development, flowering, and fruiting. Solubility: Diammonium phosphate is highly water-soluble, making it easy to apply as a liquid fertilizer or to dissolve in irrigation systems. pH and Acidity: DAP tends to be slightly acidic, which can contribute to lowering the pH of the soil over time. It is essential to monitor soil pH when using fertilizers to prevent overly acidic conditions. Application: DAP is commonly used as a dry granular fertilizer that can be broadcast on the soil surface. It can also be dissolved in water and applied as a liquid fertilizer through irrigation systems, providing quick nutrient availability to plants. Uses: Diammonium phosphate is suitable for a variety of crops, including grains, fruits, vegetables, and legumes. It is often used during the early stages of plant growth to promote root development. Storage: DAP should be stored in a cool, dry place to prevent moisture absorption and caking. Safety Considerations: When handling DAP, it's important to follow safety guidelines and use appropriate protective equipment to prevent skin or eye contact and inhalation. Compatibility: Diammonium phosphate is compatible with many other fertilizers and can be used in combination with them to provide a broader spectrum of nutrients. Environmental Impact: Like other fertilizers, the application of DAP should be done responsibly to minimize environmental impact, such as nutrient runoff into water bodies.
Diammonium phosphate (DAP) Payment Terms - LC
Total nutrient (N+P2O5) 57 - 64 % Nitrogen 15 - 18 % P2O5 42 - 46 % Water-soluble phosphorus (P2O5) 75 - 89 % Moisture 2 - 5 % Size (1-4mm) 90 - 95 % Pass Uses: Used as a high effective non-chloride N, P compound fertilizer in agriculture. It contains totally 74% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer.
DAP 18-46-O Di-ammonium Phosphate Granular SPECIFICATION (Percent by Weight) (P205+N) 64.0% Min 64.7% Total nitrogen 18% Min 18.8% P205 46% Min 47.2% Moisture 2.5% Max 1.8% Nutrient 17% Min 18.4% Size (1-4mm) 90% Min 92% water 0.1% Max 0.03% Apperance Dark Brown or Yellow State Granular
Diammonium Phosphate (DAP)
