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Monopotassium Phosphite
IDENTIFICATIONSynonyms: 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 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
APPLICATION1) 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).
| 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 |
25kgs/Kraft Paper Bags, 18~24mt/20’FCL; 5kg/bag;1000kg/super sack
REACH Substance Certified
Monopotassium phosphite is not regulated by UN as hazardous substance
For more information, please refer to MSDS.