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HomeProduct name listPotassium metaphosphate

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
Potassium metaphosphate Structural

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)
ghs
Health Hazard
GHS08
ghs
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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