sodium hexametaphosphate
- CAS No.
- 10124-56-8
- Chemical Name:
- sodium hexametaphosphate
- Synonyms
- SHMP;Sodium metaphosphate;calgons;GRA;CALGON;SODIUM POLYPHOSPHATES;SODIUM POLYMETAPHOSPHATE;Food Grade Sodium Hexametaphosphate;SODIUM HEXAMETAPHOSPHATE, 99%SODIUM HEXAMETAPHOSPHATE, 99%SODIUM HEXAMETAPHOSPHATE, 99%SODIUM HEXAMETAPHOSPHATE, 99%;CALGON3
- CBNumber:
- CB3278208
- Molecular Formula:
- H7NaO18P6
- Molecular Weight:
- 503.87
- MOL File:
- 10124-56-8.mol
- Modify Date:
- 2024/7/2 9:11:27
| Melting point | 616℃ |
|---|---|
| Boiling point | 1500℃ |
| Density | 2.181 |
| refractive index | 1.482 |
| RTECS | OY3675000 |
| FEMA | 3027 | SODIUM HEXAMETAPHOSPHATE |
| storage temp. | 2-8°C |
| form | Solid |
| color | White |
| Odor | odorless |
| Water Solubility | Soluble in water. Insoluble in organic solvents |
| Stability | Stable. Keep dry. |
| InChIKey | INSNVPUOJJTBAL-UHFFFAOYSA-H |
| CAS DataBase Reference | 10124-56-8(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium hexametaphosphate (10124-56-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Safety Statements | 24/25 | |||||||||
| WGK Germany | WGK 1 slightly water endangering | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 2835390000 | |||||||||
| NFPA 704 |
|
sodium hexametaphosphate price More Price(2)
sodium hexametaphosphate Chemical Properties,Uses,Production
Chemical Properties
The sodium polyphosphates class consists of several amorphous, water soluble polyphosphates composed of linear chains of metaphosphate units, (NaPO3)x where x ≥ 2, terminated by Na2PO4- groups. They are usually identified by their Na2O/ P2O5 ratio or their P2O5 content. The Na2O/P2O5 ratios vary from about 1.3 for sodium tetrapolyphosphate, where x = approximately 4; through about 1.1 for Graham’s salt, commonly called sodium hexametaphosphate, where x = 13 to 18; to about 1.0 for the higher molecular weight sodium polyphosphates, where x = 20 to 100 or more. The pH of their solution varies from about 3 to 9. For additional details of description, refer to Burdock (1997).
Uses
sodium hexametaphosphate is a chelating agent and a corrosion inhibitor. This is an inorganic salt.
Preparation
Sodium hexametaphosphate is prepared by heating monosodium phosphate (NaH2PO4) rapidly to a clear melt, which occurs slightly above 625°C. Rapid chilling of this melt produces a very soluble glass, which is then crushed or milled.
Agricultural Uses
Sodium metaphosphate is the salt of metaphosphoric acid
having a molecular formula (NaPO3)n, where n ranges
from 3 to 10 (for cyclic molecules) or may be much larger
(for polymers).
Cyclic molecules have alternate phosphorus and
oxygen atoms in the rings and start with trimetaphosphate
(NaPO3)3 to at least decametaphosphate.
Sodium hexametaphosphate may be a polymer where n is
between 10 and 20.
Vitreous sodium phosphates have a Na2O:P2O5 ratio
near unity and are called Graham's salts. The average
number of phosphorus atoms in these vitreous glasses
ranges from 25 to infinity.
Industrial uses
Sodium hexametaphosphate (SHMP) or water glass Na6P6O18 is basically the salt of metaphosphoric acid. SHMP is difficult to dissolve. By mixing SHMP for 1-3 h, a solution of 8-10% can be obtained. The pH of this solution is about 5. Because of a weak acid reaction, the SHMP reacts with cations of bivalent metals forming Na2MeP6O18 or Na4MeP6O18. In the presence of oxygen, SHMP slowly decomposes into pyrophosphate and orthophosphate.
Safety Profile
Poison by intravenous route. Moderately toxic by intraperitoneal and subcutaneous routes. Wdly toxic by ingestion. When heated to decomposition it emits toxic fumes of PO, and Na2O. See also PHOSPHATES.
sodium hexametaphosphate Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
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| UNILOSA INTERNATINAL PRIVATE LIMITED | +91-9999069917 +91-9999069917 | New Delhi, India | 152 | 58 | Inquiry |
| Agilenobel | +91-8090295395 +91-8800293647 | Haryana, India | 50 | 58 | Inquiry |
| Innovacorp India Pvt Ltd | +91-9312871070 +91-9911981992 | New Delhi, India | 23 | 58 | Inquiry |
| Shalibhadra Group Of Industries | +91-9898031214 +91-9825506646 | Gujarat, India | 22 | 58 | Inquiry |
| Aditya Birla Chemicals | 91-22-66525000 | Maharashtra, India | 23 | 58 | Inquiry |
| Neelam Aqua & Speciality Chem. (P) Ltd. | +91-9829069545 +91-9829060543 | Rajasthan, India | 38 | 58 | Inquiry |
| ALPHA CHEMIKA | +91-22-22061123 +91-22-66382501 | Mumbai, India | 1681 | 43 | Inquiry |
| Scientific OEM | +91-22- 2343 7546 / 2341 3094 | New Delhi, India | 1996 | 38 | Inquiry |
| Euroasia Trans Continental | +91 22 56349035-36 | New Delhi, India | 519 | 47 | Inquiry |
| Maas Pharma Chemicals | +91-9958666224 | Delhi, India | 1607 | 58 | Inquiry |
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