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Home > Products >  SodiuM hexaMetaphosphate

SodiuM hexaMetaphosphate CAS NO.10124-56-8

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Keywords

  • 10124-56-8
  • SodiuM hexaMetaphosphate
  • 6Na.O18P6

Quick Details

  • ProName: SodiuM hexaMetaphosphate
  • CasNo: 10124-56-8
  • Molecular Formula: 6Na.O18P6
  • Appearance: White or off-white Solid
  • Application: Organic synthesis
  • DeliveryTime: 10day
  • PackAge: According to the demand of customer
  • Port: shanghai
  • ProductionCapacity: 20 Metric Ton/Week
  • Purity: 99.0%
  • Storage: Sealed, dry, microtherm , avoid light ...
  • Transportation: by air or by sea
  • LimitNum: 1 Gram
  • Grade: Industrial Grade,Pharma Grade,Electron...

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T he company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality service

 

 

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Located in Zhengdong New District, Zhengzhou of Henan province, Henan Allgreen Chemical Co.,Ltd is comprehensive high-tech modern enterprises integrating professional R&D, production and sales.  Strong technical force, with a long-term professional development team engaging in the fine chemicals, Henan Allgreen Chemical Co.,Ltd is mainly engaged in development and customized of organic electronic chemical materials, metal catalysts, phosphorus ligands, medical intermediate , chemical reagent and other fine chemical products.We have multifunctional production conditions and could offer high quality products from grams to kilograms and tons. In addition, we absorb new technology actively from colleges and also have established good relations of cooperation with Huazhong University of Science and Technology ,Henan Institute of Engineering and some other well-known domestic enterprises.  Our products have been exported to Japan, South Korea, Europe, America and other countries and regions, well received by customers.        

  With sound management system, we've been authorized the Import&Export qualification by the government and also has passed the “ISO 9001-2008 Quality Management System” certification. We always stand on the quality of product as our life, develop in the direction of customers requirement and aim at creating greater value for customers.Innovation and honesty, we will make common development with the masses of customers at home and abroad hand in hand by our best service.

Sodium metaphosphate Basic information
Outline Toxicity The maximum allowable amount of food additives and maximum allowable residue limits Chemical Properties Uses Production method
Product Name: Sodium metaphosphate
Synonyms: SODIUM POLYPHOSPHATES;SODIUM POLYPHOSPHATES GLASSY;SODIUM POLYMETAPHOSPHATE;SHMP;HEXASODIUM METAPHOSPHATE;GRAHAM'S SALT;CALGON;calgon(old)
CAS: 10124-56-8
MF: 6Na.O18P6
MW: 611.77
EINECS: 233-343-1
Product Categories: INORGANIC & ORGANIC CHEMICALS;Inorganics;Inorganic Chemicals;Water Ttreatment Chemicals;Pharmaceutical raw materials;INORGANIC CHEMICAL
Mol File: 10124-56-8.mol
Sodium metaphosphate Structure
 
Sodium metaphosphate Chemical Properties
mp  616℃
density  2.181
FEMA  3027
refractive index  1.482
storage temp.  2-8°C
Stability: Stable. Keep dry.
CAS DataBase Reference 10124-56-8(CAS DataBase Reference)
EPA Substance Registry System Metaphosphoric acid (H6P6O18), hexasodium salt(10124-56-8)
 
Safety Information
Safety Statements  24/25
Hazardous Substances Data 10124-56-8(Hazardous Substances Data)
MSDS Information
Provider Language
Metaphosphoric acid hexasodium salt English
 
Sodium metaphosphate Usage And Synthesis
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.
The maximum allowable amount of food additives and maximum allowable residue limits The maximum allowable amount of food additives and maximum allowable residue limits
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
Usage 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,

 

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