DAP (Di-ammonium Phosphate/Diammonium hydrogen phosphate/Ammoniumphosphate dibasic/Ammonium hydrogen phosphate/Di-Ammonium hydrogenorthophosphate/Diammonium Phosphate/Phosphorus ICP standard solutionFluka)is easily soluble in water and used as a high effective nitrogen andphosphate -two of the macro-nutrients fertilizer in agriculture.It is also used inproducing NPK compound fertilzers &BB fertilizers as a basic raw material.DAPgranular is produced by granulation process for base-dressing,top-dressing fordeeply application directty.DAP does not contain chloride and is widely used forall kinds of plants and soil.
When DAP applied as plant food,it temporarily increases the soil pH,but over along term the treated ground becomes more acidic than before uponnitrification of the ammonium.It is incompatible with alkaline chemicals becauseits ammonium ion is more likely to convert to ammonia in a high-pH environment.The average pH in solution is 7.5-8.
SPECIFICATION
Item | Standard |
Purity | 99.0%Min |
Total Nitrogen | 18.0%Min |
Total Phosphate (as P₂Os) | 46.0%Min |
Moisture | 2.0%Max |
Water Soluble Phosphate(as P₂Os) | 41.0 %Min |
PH Value | 7.8-8.2 |
Appearance | Brown or Yellow Granular |
Partical Size | 2-4mm:90%Min |
CAS NO. 7783-28-0
EINECS NO. 231-987-8
HS CODE 31053000
CHEMICAL FORMULA (NH₄)₂HPO₄
MOLAR MASS 132.06 g/mol
ODOR Faint acid
DENSITY 1.619 g/cm3
MELTING POINT 155℃ decomposes
SOLUBILITY IN WATER 57.5 g/100mL(0 ℃)106.7 g/100mL(100 ℃)
CHARACTERISTIC Easy decompose in wet air release ammonia convert to monoammonium phosphate
STORAGE Store in cool,dry,well ventilated warehouse.Avoid insolation or rain.Kept
away from water and moisture,stored separately from poisonous substances.
25/50KG PP plastic woven with PE inner bag