Glassy sodium
Sodium hexametaphosphate
CAS: 10124-56-8
Molecular Formula: Na6O18P6
Glassy sodium - Names and Identifiers
| Name | Sodium hexametaphosphate |
| Synonyms | SHMP Glassy sodium Sodium Hexametapho sodium henamephosphate Sodium hexametaphosphate Hexasodium metaphosphate Sodium Hexameta phosphate Sodium phosphate (Na6(PO3)6) Metaphosphoric acid, hexasodium salt Graham's Salt, Sodium Polymetaphosphate hexasodium cyclohexaphosphoxane-2,4,6,8,10,12-hexolate 2,4,6,8,10,12-hexaoxide |
| CAS | 10124-56-8 |
| EINECS | 233-343-1 |
| InChI | InChI=1/6Na.H6O18P6/c;;;;;;1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h;;;;;;(H,1,2)(H,3,4)(H,5,6)(H,7,8)(H,9,10)(H,11,12)/q6*+1;/p-6 |
| InChIKey | AUMBZPPBWALQRO-UHFFFAOYSA-L |
Glassy sodium - Physico-chemical Properties
| Molecular Formula | Na6O18P6 |
| Molar Mass | 611.77 |
| Melting Point | 183-188 °C |
| Solubility | Soluble in water, insoluble in organic solvents, |
| Appearance | Powder |
| Color | White to off-white |
| Storage Condition | Room Temprature |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00136045 |
| Physical and Chemical Properties | Properties of colorless transparent glass flake or white granular crystals. melting point 616 ℃ (decomposition) relative density 2.484(20 ℃) solubility soluble in water, insoluble in organic solvents. |
| Use | Used as water softener, detergent, preservative, cement hardening agent, fiber and bleaching and dyeing cleaning agent, also used in medicine, food oil, printing and dyeing, tanning, paper making, etc. |
Glassy sodium - Risk and Safety
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
| UN IDs | N/A |
| HS Code | 29302000 |
Glassy sodium - Upstream Downstream Industry
Glassy sodium - Reference
| Reference Show more | 1. Li, Wenhui, et al. "Low and high methoxyl pectin lowers on structural change and digestibility of fried potato starch." LWT 132 (2020): 109853.https://doi.org/10.1016/j.lwt.2020.109853 |
Glassy sodium - Nature
Open Data Verified Data
colorless transparent liquid flake or white granular crystals. Relative density 2. 484, melting point 616 ℃ (decomposition). Soluble in water, insoluble in organic solvents. Strong hygroscopicity, and calcium, magnesium and other metal ions can form soluble complexes. Gradual hydrolysis in water produces orthophosphate.
Last Update：2024-01-02 23:10:35
Glassy sodium - Preparation Method
Open Data Verified Data
sodium dihydrogen phosphate dihydrate was prepared by neutralization reaction of soda ash solution and phosphoric acid at 80~100 ℃, and the resulting sodium dihydrogen phosphate solution was concentrated by evaporation, cooled and crystallized, two crystal water are removed by heating to 110-230 ° C., the structural water is removed by heating, and dehydration is further performed by heating to 620 ° C. To form a sodium metaphosphate melt and polymerize into sodium hexametaphosphate. Alternatively, the yellow phosphorus is oxidized by combustion in a stream of dry air and cooled to obtain phosphorus pentoxide, which is mixed with soda ash in a certain proportion. After the mixture was pulverized, it was put into a graphite crucible, heated to dehydrate and melt-polymerize the resulting sodium hexametaphosphate melt, quenched and tableted, and pulverized to obtain sodium hexametaphosphate.
Last Update：2022-01-01 08:53:17
Glassy sodium - Introduction
It is easy to deliquesce in the air and soluble in water. It dissolves 973 · 2 grams per liter of water at 20 ℃ and 1744 grams per liter of water at 80 ℃. The PH value of 1% solution is about 5-5-6-5, which is insoluble in organic solvent. In neutral medium, the final product of hydrolysis is orthophosphate. The hygroscopicity is very strong, and it can gradually absorb moisture when exposed to the air and form a viscose. It can synthesize soluble double salt with alkaline earth metallization, so it has the function of dissolving scale and is a good water softener.
Last Update：2022-10-16 17:11:30
Glassy sodium - Use
Open Data Verified Data
The most commonly used polyphosphoric acids are sodium hexametaphosphate and sodium tripolyphosphate. From the corrosion inhibition effect, sodium hexametaphosphate is better than sodium tripolyphosphate, therefore, sodium hexametaphosphate is more widely used.
Last Update：2022-01-01 08:53:18
Glassy sodium - Safety
Open Data Verified Data
ingestion of sodium hexametaphosphate by mistake can cause severe poisoning and even death. The most common symptoms of poisoning are Shock, arrhythmia, bradycardia and so on. Once poisoning, should as soon as possible to the hospital for treatment. Six Poly sodium phosphate should be stored in a cool, ventilated, dry, clean, non-toxic warehouse. Co-storage and mixed transportation with toxic substances is strictly prohibited
Last Update：2022-01-01 08:53:18
Glassy sodium - Use
Zinc dibenzyl dithiocarbamate is a useful analytical tool for the detection of copper in plants and biological tissues. It is also used to prepare dithiocarbamate ligands for stabilizing gold nanoparticles.
Last Update：2024-04-09 21:01:54
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Raw Materials for Glassy sodium
Downstream Products for Glassy sodium