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Potassium metaphosphate

CAS No.
7790-53-6
Chemical Name:
Potassium metaphosphate
Synonyms
POTASSIUM METAPHOSPHATE;Potassium metaphospahte;Potassium polypllosphates;Potassiummetaphosphate,98%;Phosphenic acid potassiu;Potassium Hexametaphosphate;Phosphenic acid potassium salt;Potassium oxophosphoniumdiolate;metaphosphoric acid potassium salt;Potassium metaphosphate, 98% (Assay)
CBNumber:
CB1750964
Molecular Formula:
KO3P
Molecular Weight:
118.07
MDL Number:
MFCD00049681
MOL File:
7790-53-6.mol
Last updated:2026-05-27 23:46:21

Potassium metaphosphate Properties

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]
Cosmetics Ingredients Functions SURFACTANT - CLEANSING
InChI InChI=1S/K.HO3P/c;1-4(2)3/h;(H,1,2,3)/q+1;/p-1
InChIKey OQZCJRJRGMMSGK-UHFFFAOYSA-M
SMILES P([O-])(=O)=O.[K+]
CAS DataBase Reference 7790-53-6(CAS DataBase Reference)
SCOGS (Select Committee on GRAS Substances) Potassium polymetaphosphate
Substances Added to Food (formerly EAFUS) POTASSIUM POLYMETAPHOSPHATE
EWG's Food Scores 1
FDA UNII 01DMT14Z63
NIST Chemistry Reference Potassium metaphosphate(7790-53-6)
EPA Substance Registry System Potassium metaphosphate (7790-53-6)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion GHS05Exclamation Mark GHS07
GHS05,GHS07
Signal word  Danger
Hazard statements  H302+H314+H318
Precautionary statements  P264-P280-P310-P305+P338+P351
Safety Statements  22-24/25
TSCA  TSCA listed

Potassium metaphosphate price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Strem Chemicals 93-1941 Potassium metaphosphate, 98% 98% 7790-53-6 500g $195 2026-04-30 Buy
Strem Chemicals 93-1941 Potassium metaphosphate, 98% 98% 7790-53-6 2kg $582 2026-04-30 Buy
TRC TRC-M226260-5G Metaphosphoric Acid Potassium Salt 7790-53-6 5g $154 2026-06-03 Buy
TRC TRC-M226260-25G Metaphosphoric Acid Potassium Salt 7790-53-6 25g $205 2026-06-03 Buy
TRC TRC-M226260-1G Metaphosphoric Acid Potassium Salt 7790-53-6 1g $129 2026-06-03 Buy
Product number Packaging Price Buy
93-1941 500g $195 Buy
93-1941 2kg $582 Buy
TRC-M226260-5G 5g $154 Buy
TRC-M226260-25G 25g $205 Buy
TRC-M226260-1G 1g $129 Buy

Potassium metaphosphate Chemical Properties, Uses, Production

Chemical Properties

White powder.Soluble in dilute acids; slightly soluble in water.

Uses

Potassium Metaphosphate is a substitute for sodium phosphate in low-sodium foods. it also functions as a fermentation nutrient and buffer.

Uses

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)6H2O, 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.

Potassium metaphosphate Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 210)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
XiaoGan ShenYuan ChemPharm co,ltd 15527621225; 15527621225 1791901229@qq.com China 6742 52
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Chengdu Ai Keda Chemical Technology Co., Ltd. 4008-755-333 18080918076 800078821@qq.com China 9706 55
Shanghai JONLN Reagent Co., Ltd. 400-0066400 13621662912 422131432@qq.com China 9970 55
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 13458535857 cdhxsj@163.com China 13323 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Hangzhou J&H Chemical Co., Ltd. 0571-87396432 sales@jhechem.com China 14905 59

View Latest Price from Potassium metaphosphate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Potassium Metaphosphate pictures 2026-09-01 Potassium Metaphosphate
7790-53-6
1kg 99% 20tons Shaanxi TNJONE Pharmaceutical Co., Ltd
potassium metaphosphate pictures 2026-07-22 potassium metaphosphate
7790-53-6
1kg 99% 20MT Watson Biotechnology Co.,Ltd
Potassium metaphosphate pictures 2025-06-27 Potassium metaphosphate
7790-53-6
$10.00-30.00 50KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd

Potassium metaphosphate Spectrum

Metaphosphoric acid (HPO3), potassium salt metaphosphoricacid(hpo3),potassiumsalt POTASSIUM METAPHOSPHATE Potassium metaphosphate, 98% (Assay) metaphosphoric acid potassium salt Potassiummetaphosphate,98% Potassium polypllosphates Phosphenic acid potassium salt Phosphenic acid potassiu Potassium Hexametaphosphate Potassium oxophosphoniumdiolate Potassium metaphosphate ISO 9001:2015 REACH Potassium metaphospahte 7790-53-6 KPO3 Kn2PnO3n1 KO3P metal phosphate compound Inorganics