Chemical Product Library / Reference
Sodium metaphosphate
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Sodium metaphosphate |
|---|---|
| English synonyms | SMP;Sodium metaphosphate;Sodium polyphosphate |
| Chinese name | 偏磷酸钠 |
| Chinese synonyms | SMP;偏磷酸钠;玻璃状偏磷酸钠 |
| Chemical category | Food Acids & Regulators |
| CAS No. | 10361-03-2 |
| EINECS No. | 233-782-9 |
| Molecular formula | (NaPO3)n |
| Molecular weight | Not provided |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
P2O5 content ≥60.0%; water-insoluble matter ≤0.1%; pH (1% aqueous solution) 6.0–8.0; iron ≤0.02%
Performance characteristics
White powder or glassy solid, soluble in water, good chelating and dispersing properties
Application scenarios
Food quality improver, water treatment, detergent builder, ceramic industry