POTASSIUM PHOSPHITE
- CAS No.
- 13492-26-7
- Chemical Name:
- POTASSIUM PHOSPHITE
- Synonyms
- Kphos;Potassium phdsphite;Potassium phosphonate;di-potassium;POTASSIUM PHOSPHITE;Tripotassium phosphite;Dipotassiumhydrogenphosphite;di-potassiumsaltsofphosphorous;Phosphonic acid potassium salt;phosphonicacid,dipotassiumsalt
- CBNumber:
- CB0677796
- Molecular Formula:
- H4KO3P
- Molecular Weight:
- 122.1
- MDL Number:
- MFCD00049667
- MOL File:
- 13492-26-7.mol
- MSDS File:
- SDS
| Melting point | > 300° C (dec.) |
|---|---|
| Density | 0.979[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Hygroscopic, Room Temperature, Under inert atmosphere |
| solubility | Methanol (Slightly, Sonicated), Water (Slightly) |
| form | white hygroscopic powder |
| pka | 1.3[at 20 ℃] |
| color | White to Off-White |
| Water Solubility | very soluble H2O; insoluble alcohol [MER06] |
| Specific Heat Capacity | Cp(gas): 0.31 J/(g·K), at 25℃ |
| Stability | Hygroscopic |
| LogP | -1 at 25℃ |
| CAS DataBase Reference | 13492-26-7 |
| FDA UNII | D69679I4JJ |
| EPA Substance Registry System | Dipotassium phosphite (13492-26-7) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P |
| TSCA | TSCA listed |
| REACH Registrations | Active |
POTASSIUM PHOSPHITE price More Price(19)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Biosynth | FD30586 | Dipotassium hydrogen phosphite | 13492-26-7 | 10g | $179.6 | 2026-06-04 | Buy |
| Biosynth | FD30586 | Dipotassium hydrogen phosphite | 13492-26-7 | 25g | $315 | 2026-06-04 | Buy |
| Biosynth | FD30586 | Dipotassium hydrogen phosphite | 13492-26-7 | 50g | $527 | 2026-06-04 | Buy |
| Biosynth | FD30586 | Dipotassium hydrogen phosphite | 13492-26-7 | 100g | $951 | 2026-06-04 | Buy |
| Biosynth | FD30586 | Dipotassium hydrogen phosphite | 13492-26-7 | 250g | $2162.5 | 2026-06-04 | Buy |
POTASSIUM PHOSPHITE Chemical Properties, Uses, Production
Chemical Properties
white; deliquescent powder(s); slowly oxidized in air to the phosphate; decomposed by heating [MER06]
Uses
POTASSIUM PHOSPHITE: Disease Prevention and Bacterial Suppression: Rich in biostimulant phosphorous acid (containing +3 valent phosphorous acid), it can stimulate crops to produce polyphenols and reactive oxygen species (ROS), stimulating the activity of defense enzyme systems. It has good preventive and therapeutic effects on common fungal and viral diseases such as blight, downy mildew, root rot, and late blight. Regular use greatly improves the disease resistance and stress tolerance of crops. Safe and Efficient: It can be transported bidirectionally through the xylem and phloem, improving nutrient absorption and utilization efficiency. The nutrients are pure, hormone-free, and impurity-free, and will not clog nozzles or drip irrigation capillaries, making it safer for roots, leaves, flowers, and fruits. Loosens the soil, increases permeability, improves the rhizosphere environment, and is conducive to healthy and vigorous crop growth; Promotes Root and Plant Growth, Promotes Flowering and Fruit Enlargement, and Increases Yield: It can promote robust plant growth, effectively control apical dominance, avoid excessive vegetative growth, and make crop flower buds full, more and stronger, significantly improving fruit set rate and quality, thus increasing yield and income.
Production Methods
There are various commercial production methods including; (1) from phosphonic acid, (2) using the Michaelis–Arbuzov reaction, and (3) from phosphorus trichloride
Flammability and Explosibility
Non flammable
Mechanism of action
Mixed mode of application including direct toxicity to plant pathogens reducing populations and promotion of plants natural defences
Pesticide Type
Fungicide
POTASSIUM PHOSPHITE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Shanghai Macklin Biochemical Co.,Ltd. | 15221275939 15221275939 | shenlinxing@macklin.cn | China | 15775 | 55 |
| Chizhou Kailong Import and Export Trade Co., Ltd. | xg01_gj@163.com | China | 9413 | 50 | |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Rhawn Reagent | 400-400-1332688 18019345275 | huyue@rhawn.cn | China | 14942 | 58 |
| Guangdong wengjiang Chemical Reagent Co., Ltd. | 0751-2815688 13927872512 | 3007421951@qq.com | China | 9996 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8618071025641 | eric@witopchemical.com | China | 23504 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-17392587031 | 1059@dideu.com | China | 9689 | 58 |
| Shaanxi Chenming Biotechnology Co., Ltd | 15529026321 | 2709392183@qq.com | China | 1133 | 58 |
View Latest Price from POTASSIUM PHOSPHITE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-19 | POTASSIUM PHOSPHITE
13492-26-7
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-09-02 | POTASSIUM PHOSPHITE
13492-26-7
|
$5.00-8.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd |
-
- POTASSIUM PHOSPHITE
13492-26-7
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- POTASSIUM PHOSPHITE
13492-26-7
- $5.00-8.00
- 99%
- Henan Fengda Chemical Co., Ltd
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