Metaphosphoric acid
- CAS No.
- 37267-86-0
- Chemical Name:
- Metaphosphoric acid
- Synonyms
- metaphosphoric;M-PHOSPHORIC ACID;Metaphosphoricaci;M-PhosphoricAcidGr;METAPHOSPHORIC ACID;PHOSPHORIC ACID, META;stabilized with NaPO3;Metaphosphoricacid,ACS;meta-PHOSPHORIC ACID AR;M-PHOSPHORIC ACID STICKS
- CBNumber:
- CB2853567
- Molecular Formula:
- HO3P
Lewis structure
- Molecular Weight:
- 79.98
- MDL Number:
- MFCD00011351
- MOL File:
- 37267-86-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 21°C |
|---|---|
| Boiling point | 158°C |
| Density | 2 g/cm3 |
| bulk density | 1000kg/m3 |
| vapor pressure | 0.04 hPa at 20 °C |
| storage temp. | Store below +30°C. |
| solubility | Soluble in alcohol. |
| form | pieces |
| color | Glassy |
| Odor | Odorless |
| PH | 2 (20°C, 33g/L in H2O) |
| Water Solubility | Decomposes in water. Soluble in alcohol. |
| Sensitive | Hygroscopic |
| Merck | 14,7345 |
| Stability | Stable. Incompatible with strong bases, most metals. |
| Cosmetics Ingredients Functions |
CHELATING BUFFERING |
| Cosmetic Ingredient Review (CIR) | Metaphosphoric acid (37267-86-0) |
| InChI | 1S/HO3P/c1-4(2)3/h(H,1,2,3) |
| InChIKey | UEZVMMHDMIWARA-UHFFFAOYSA-N |
| SMILES | OP(=O)=O |
| CAS DataBase Reference | 37267-86-0(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | MTK99R3UV0 |
| EPA Substance Registry System | Metaphosphoric acid (37267-86-0) |
| UNSPSC Code | 12352301 |
| NACRES | NA.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314 | |||||||||
| Precautionary statements | P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363 | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34-35-22-37 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3260 8/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 28092019 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Eye Dam. 1 Skin Corr. 1B |
|||||||||
| NFPA 704 |
|
Metaphosphoric acid price More Price(51)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 239275 | meta-Phosphoric acid ACS reagent, chips, 33.5-36.5% | 37267-86-0 | 5g | $66.4 | 2026-04-30 | Buy |
| Sigma-Aldrich | 239275 | meta-Phosphoric acid ACS reagent, chips, 33.5-36.5% | 37267-86-0 | 2.5kg | $2390 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.00546 | meta-Phosphoric acid pieces for analysis (stabilized with sodium metaphosphate) EMSURE? | 37267-86-0 | 100g | $222 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.00546 | meta-Phosphoric acid pieces for analysis (stabilized with sodium metaphosphate) EMSURE? | 37267-86-0 | 500g | $522 | 2026-04-30 | Buy |
| honeywell | 239275 | meta-Phosphoric acid | 37267-86-0 | 100g|PlasticBottle | $194.68 | 2026-06-04 | Buy |
Metaphosphoric acid Chemical Properties, Uses, Production
Physical Properties
Glass-like colorless solid; soft and transparent; deliquesces; sublimes at red heat; dissolves slowly in cold water, decomposing to phosphoric acid; soluble in alcohol.
Preparation
Metaphosphoric acid is obtained as a polymeric glassy solid by prolonged heating of phosphoric acid. Either phosphoric acid, H3PO4, or pyrophosphoric acid, H4P2O7, when heated above 300°C, on cooling yields the transparent glassy mass of composition (HPO3)n.
Metaphosphoric acid also is obtained from partial hydration of phosphorus pentoxide by dissolving it in cold water.
Uses
An inorganic reagent used for research purposes
Uses
In dentistry for making zinc oxyphosphate cement; as reagent in chemical analysis.
Uses
Metaphosphoric acid is used as a dehydrating agent. Its derivative, sodium hexametaphosphate is used as a sequestrant and a food additive. It is also used as phosphorylating agent, analytical reagent and in dental cements.
Definition
ChEBI: Phosphonate(1-) is a monovalent inorganic anion obtained by deprotonation of one of the two OH groups in phosphonic acid. It is a phosphorus oxoanion and a monovalent inorganic anion. It is a conjugate base of a phosphonic acid. It is a conjugate acid of a phosphonate(2-).
General Description
meta-Phosphoric acid is a monobasic acid.
Metaphosphoric acid Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 94607 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 | sj_scrc@sinopharm.com | China | 9791 | 79 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
| Spectrum Chemical Manufacturing Corp. | 021-021-021-67601398-809-809-809 15221380277 | marketing_china@spectrumchemical.com | China | 9643 | 60 |
View Latest Price from Metaphosphoric acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2019-07-12 | Metaphosphoric acid
37267-86-0
|
$1.00 | 1KG | 99% | 25kg | Career Henan Chemical Co |
-

- Metaphosphoric acid
37267-86-0
- $1.00
- 99%
- Career Henan Chemical Co
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