Molecular formula: KH2PO4
Molecular weight: 136.09
National Standard: HG/T4511-2013
CAS Number: 7778-77-0
Other Name: Potassium Biphosphate; Potassium Dihydrogen Phosphate;
Properties
White or colorless crystal,free flowing, easily soluble in water, relative density at 2.338 g/cm3, melting point at 252.6℃ , and PH value of 1% solution is 4.5.
Application
Used as a high effective K and P compound fertilizer. It contains totally 86% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer. Industry mainly apply for fireproof material production.
Package
Packing :25 kgs bag,1000 kgs,1100 kgs, 1200 kgs jumbo bag
Loading:25 kgs on pallet: 25 MT/20’FCL; Un-palletized:27MT/20’FCL
Jumbo bag :20 bags /20’FCL ;
Specifications
Remark: Granular size could be customized
No | Specifications | National Standard | Agriculture | Industry |
1 | Assay % ≥ | 99.0 | 99.0 Min | 99.2 |
2 | Phosphorus pentoxide % ≥ | / | 52 | 52.0 |
3 | Potassium oxide (K2O) % ≥ | 34 | 34 | 34.0 |
4 | PH value (30g/L solution) | 4.3-4.7 | 4.3-4.7 | 4.3-4.7 |
5 | Moisture % ≤ | 0.5 | 0.2 | 0.1 |
6 | Sulfates(SO4) % ≤ | / | / | 0.005 |
7 | Heavy metal, as Pb % ≤ | 0.005 | 0.005 Max | 0.003 |
8 | Arsenic, as As % ≤ | 0.005 | 0.005 Max | 0.003 |
9 | Fluoride as F % ≤ | / | / | 0.005 |
10 | Water insoluble % ≤ | 0.1 | 0.1 Max | 0.008 |
11 | Pb % ≤ | / | / | 0.0004 |
12 | Fe % ≤ | 0.003 | 0.003 Max | 0.001 |
13 | Cl % ≤ | 0.05 | 0.05 Max | 0.001 |