Potassium metaphosphate
- CAS NO.:7790-53-6
- Empirical Formula: KO3P
- Molecular Weight: 118.07
- MDL number: MFCD00049681
- EINECS: 232-212-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-24 21:11:45
What is Potassium metaphosphate?
Chemical properties
White powder.Soluble in dilute acids; slightly soluble in water.
The Uses of Potassium metaphosphate
Potassium Metaphosphate is a substitute for sodium phosphate in low-sodium foods. it also functions as a fermentation nutrient and buffer.
The Uses of Potassium metaphosphate
Pharmaceutic aid (buffering agent).
Definition
ChEBI: Potassium metaphosphate is a potassium salt of metaphosphoric acid. It has a role as a fertilizer, a buffer, a food emulsifier, a raising agent and a sequestrant. It is an inorganic phosphate and a potassium salt. It contains a trioxidophosphate(1-).
Agricultural Uses
Potassium metaphosphate is the salt of metaphosphoric acid. It is a readily available source of phosphorus and potassium to plants, and comprises 60% phosphorus and 40% potassium (K2O). When pure, it contains almost 100% plant food. Potassium metaphosphate, K6(PO3)6?H2O, is made by reacting phosphorus pentoxide (P2O5) with potassium chloride (KCl) at a high temperature. It is slightly soluble in water and makes phosphate available after hydrolysis. Although slightly soluble in water, it is readily soluble in ammonium citrate solution.
Properties of Potassium metaphosphate
Melting point: | 807°C |
Boiling point: | 1320℃ [CRC10] |
Density | 2,393 g/cm3 |
solubility | Aqueous Acid (Slightly) |
form | Powder |
color | white |
Specific Gravity | 2.393 |
Odor | at 100.00?%. odorless |
Water Solubility | g/100mL solution H2O: 0.0041 (25°C) [KRU93] |
InChI | InChI=1S/K.HO3P/c;1-4(2)3/h;(H,1,2,3)/q+1;/p-1 |
CAS DataBase Reference | 7790-53-6(CAS DataBase Reference) |
NIST Chemistry Reference | Potassium metaphosphate(7790-53-6) |
EPA Substance Registry System | Potassium metaphosphate (7790-53-6) |
Safety information for Potassium metaphosphate
Signal word | Warning |
Pictogram(s) |
Health Hazard GHS08 Environment GHS09 |
GHS Hazard Statements |
H227:Flammable liquids |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. |
Computed Descriptors for Potassium metaphosphate
InChIKey | OQZCJRJRGMMSGK-UHFFFAOYSA-M |
SMILES | P([O-])(=O)=O.[K+] |
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