Product show

Monopotassium Phosphite

Identification

Synonyms: Mono potassium phosphite; Potassium phosphite monobasic; MKPO3; Phosphonic acid monopotassium salt; potassium dihydrogen phosphite
CAS No.: 13977-65-6 EC No.:(not available)
Molecular Weight: 120.078
Molecular Formula: KH2PO3
Structural Formula:monopotassium phosphite

Preparation

Monopotassium phosphite can be obtained by neutralization reaction between phosphorous acid (H3PO3) and potassium hydroxide (or potassium carbonate)
H3PO3+KOH→KH2PO3+H2O

or

2H3PO3+K2CO3→2KH2PO3+CO2+H2O

Application

1) Monopotassium phosphite is used in formulation of foliar fertilizer and water-soluble fertilizer.
2) Monopotassium phosphite is used as fungicide to control Oomycetes (esp. Phytophthora sp), similar to fosetyl aluminium (Aliette).

Specification*

Monopotassium Phosphite Content 98.0% min.
K2O 38.4%
P2O5 57.9%
Moisture 2.0% max.
Chloride (Cl) 0.0005% max.
Iron (Fe) 0.0005% max.
Pb 0.001% max.
As 0.001% max.
Cd 0.0005% max.
Insolubles in water 0.01% max.
pH Value 3.9~4.2
Appearance white crystalline powder

Standard Packaging

25kgs/Kraft Paper Bags, 18~24mt/20’FCL; 5kg/bag;1000kg/super sack

Monopotassium Phosphite

Risks and Safety Information

Monopotassium phosphite is not regulated by UN as hazardous substance
For more information, please refer to MSDS.

No hazard

Related Products

MORE >>