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sodium hexametaphosphate

Outline Toxicity Chemical Properties Uses Production method
sodium hexametaphosphate
sodium hexametaphosphate
CAS No.
10124-56-8
Chemical Name:
sodium hexametaphosphate
Synonyms
GRA;SHMP;CALGON;calgons;CALGON3;fema3027;polyphos;SHMP(food);SHMP(tech);calgon(old)
CBNumber:
CB3278208
Molecular Formula:
6Na.O18P6
Formula Weight:
611.77
MOL File:
10124-56-8.mol

sodium hexametaphosphate Properties

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
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
Metaphosphoric acid (H6P6O18), hexasodium salt(10124-56-8)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Safety Statements  24/25
TSCA  Yes
Hazardous Substances Data 10124-56-8(Hazardous Substances Data)
Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

sodium hexametaphosphate price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SX0583 Sodium Hexametaphosphate 10124-56-8 3 $135 2017-11-08 Buy
Alfa Aesar 014706 Sodium hexametaphosphate, tech. 10124-56-8 1kg $39.6 2018-11-16 Buy
Alfa Aesar 014706 Sodium hexametaphosphate, tech. 10124-56-8 5kg $110 2018-11-16 Buy

sodium hexametaphosphate Chemical Properties,Uses,Production

Outline

Sodium hexametaphosphate is a kind of sodium metaphosphate polymers. It is also known as "polyvinylidene sodium," "sodium multiple metaphosphate", "sodium metaphosphate vitreous body", and "Graham salt". It is a colorless transparent glass-like solid or white powder with greater solubility but low dissolving rate in water. Its aqueous solution exhibits acidic property. Its complex of divalent metal ion is relatively more stable than the complexes of mono-valent metal ion. It can easily be hydrolyzed to orthophosphate in warm water, acid or alkali solution. Hexametaphosphate has a relative strong hygroscopicity with being sticky after absorbing moisture. For certain metal ions (e.g., calcium, magnesium, etc.), it has the ability to form soluble complexes, and thus being able to being used for demineralizing water. It can also from precipitate with lead and silver ions with precipitate being re-dissolved in excess amount of sodium hexametaphosphate solution to form a complex salt. Its barium salt can also form complexes with the sodium hexametaphosphate. It can be used as a kind of highly efficient water softener of power stations, rolling stock boiler water; as detergent additive, as corrosion-controlling or anti-corrosion agents; as cement hardening accelerator; as streptomycin purification agent, and the cleaning agent of textile industry and dyeing industry. It can also be used as a kind of sedative drug, preservative, stabilizer, and fruit juice precipitant in food industry. In the oil industry, it is used for control of drilling pipe rust and adjusting the viscosity of oil drilling mud. It also has applications in fabric dyeing, tanning, paper, color film, soil analysis, radiation chemistry and analytical chemistry and other departments. Our GB2760-1996 provisions that hexametaphosphate is allowable food additives (water retention agent) for being used for canned food, fruit juice drinks, dairy products, soy products; it can also be used as a dye dispersant, and water treatment agent.
The above information is edited by the Chemicalbook of Dai Xiongfeng.

Toxicity

Adl 0~70 mg/kg (in terms of phosphorus); LD50:4g/kg (rat, oral). According to the provision of the GB2760-86, it is allowed for being applied to canned food, fruit juice drinks, dairy products, soy milk as quality improver; the maximum usage amount is 1.0 g/kg. When being used as composite phosphate, calculated as the total phosphate, the canned meat products shall not exceed 1.0 g/kg; for condensation of milk, it shall not exceed 0.50 g/kg.

Chemical Properties

It is colorless and transparent glass flake or white granular crystals. It is easily soluble in water but insoluble in organic solvents.

Uses

It can be used as a food quality improver in food industry, pH adjusting agent, metal ion chelating agents, dispersants, extenders, etc.
It can be used as a kind of common analytical reagents, water softener, and also used for photofinishing and printing.
It can be used as a water softener, detergent, preservative, cement hardening accelerator, fiber dyeing and cleaning agents; it can also used for medicine, food, petroleum, printing and dyeing, tanning, and paper industry.
It can be used as texturizing agent; emulsifiers; stabilizer; chelating agent. It is less frequently for being used alone and is generally used in mixture with pyrophosphate and metaphosphate. The mixture is mainly used for ham, sausage, surimi such as the tissue improver for water retention, tendering and meat softening. It can also be used for prevention of crystallization of canned crab as well as dissolving agent of pectin.
It can be used as the water softening agent of boiler water and industrial water (including water for the production of dyes, water for the production of titanium dioxide, water for printing and dyeing, and slurry mixing, water for cleaning color copy of the film, as well as chemical industrial water and the water for the medicines, reagents production, etc.) as well as the water treatment agent for the industrial cooling water; it can also be used as a corrosion inhibitor, flotation agent, dispersant agent, high temperature binding agent, dyeing auxiliaries, metal surface treatment, rust inhibitors, detergent additives and also cement hardening accelerator. Coated paper production can use it as pulp dispersants in order to improve the penetration capability. In addition, it can also be apply to the washing utensils and chemical fiber in order to remove iron ions of the pulp. In the oil industry, it can be used for the antirust of the drilling pipe and adjusting the slurry viscosity upon the control of oil drilling.
It can be used as the quality improver with various effects of increasing the complex metal ions of food, pH, ionic strength, thereby improving the adhesive capability as well as the water holding ability of food. China provides that it can be applied to the dairy products, poultry products, ice cream, instant noodles and meat with the maximum permitted amount being 5.0 g/kg; the maximal permitted usage amount in canned food, fruit juice (flavored) drinks and vegetable protein drink is 1.0g/kg.
It can be used as a food quality improver in food industry and applied to canned food, fruit juice drinks, dairy products, and soy milk. It can be used as Ph adjusting agent, metal ion chelate agent, adhesive and bulking agents. When being applied to beans and canned fruits and vegetables, it can be stabilize the natural pigment and protect the food color and lustre; when being used in canned meat, it can be used for preventing the emulsification of the fat and maintaining its uniform texture; when being applied to meat, it can be used to increase the water holding capacity and prevent the deterioration of fat in the meat. It can also help to clarify the wine when being supplied to beer and further prevent turbidity.

Production method

Sodium dihydrogen phosphate: The soda solution was first subject to neutralization reaction with phosphate acid at 80~100 ℃ for 2h; the resulting sodium dihydrogen phosphate solution was concentrated by evaporation, cooled and crystallized to obtain sodium dihydrogen phosphate dihydrate and heated to 110~230 ℃ to remove two crystal water; further be subject to heating to remove the structural water; further being heated to 620 ℃ for dehydration to result in the molten sodium metaphosphate and further polymerized into sodium hexametaphosphate, and discharged; apply chilling shock fro 650 ℃ to 60~80 ℃ for flaking, and crush to obtain the hexametaphosphate products. Its reaction formula is as below:
Na2CO3 + 2H3PO4 + H2O → 2NaH2PO4•2H2O + CO2 ↑
NaH2PO4•2H2O [△] → Na2H2PO4 + 2H2O
2NaH2PO4 [△] → Na2H2P2O7 + H2O
Na2H2P2O7 → 2NaPO3 + H2O
6NaPO3 [△] → (NaPO3) 6
Phosphorus pentoxide method: put the yellow phosphorus into a steam of dry air for combustion and oxidation, the cooling obtained phosphorus pentoxide is mixed together with soda in certain ratio (Na2O: P2O5 = 1~1.1). Put the mixed powder in a graphite crucible and heated indirectly to have it dehydrated and agglomerated, the resulting sodium hexametaphosphate is subject to flaking upon chilling shock and pulverized to obtain industrial hexametaphosphate products. The reaction formula is as below:
P4 + 5O2 → 2P2O5
P2O5 + Na2CO3 → 2NaPO3 + CO2 ↑
6NaPO3 [△] → (NaPO3) 6

Chemical Properties

white granular solid

Uses

For industrial use, such as oil field, paper-making, textile, dyeing, petrochemical industry,tanning industry, metallurgical industry and building material industry, It is mainly used as a water sortening agent in solution for printing, dyeing ,and boiler; Diffusant in papermersing medium, high temperature agglomerant,detergent and soil analytical chemistry reagent,

sodium hexametaphosphate Preparation Products And Raw materials

Raw materials

Preparation Products


sodium hexametaphosphate Suppliers

Global( 308)Suppliers
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Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 sales3257@jskolod.com CHINA 92 60
Henan DaKen Chemical CO.,LTD.
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inquiry@dakenchem.com CHINA 22119 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20795 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1374 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32764 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 1465 55
Hebei Ruishun Trade Co.,LTD
86-311-66111018
86-311-66111018 Mike@rsbiology.com CHINA 291 58
Hebei Huanhao Biotechnology Co., Ltd.
86-0311-83975816
86-0311-83975816 lyla@hbhuanhao.com CHINA 529 58
VOT INTERNATIONAL BUSINESS CO.,LTD 0536-2456718
0536-8231856 market@votchemical.com China 236 55
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30308 84

View Lastest Price from sodium hexametaphosphate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-10-26 Factory Sodium Hexametaphosphate(SHMP) CAS NO.10124-56-8 CAS NO.10124-56-8
10124-56-8
US $1.00 / G 100G 99.9% 50000 tons Hebei Ruishun Trade Co.,Ltd

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