مرجع مواد شیمیایی ایران
اطلاعات عمومی سدیم هگزا متا فسفات
  • نام شیمیایی

    • سدیم هگزا متا فسفات

    • Sodium hexametaphosphate

  • مترادف ها
    • Calgon S ; Glassy sodium ; Graham's salt ; Hexasodium metaphosphate ; Metaphosphoric acid, hexasodium salt

  • CAS
    10124-56-8
  • فرمول مولکولی
    Na 6P 6O 18
  • جرم مولکولی
    611/77
  • EINECS
    233-343-1
  • ICB Number
    ICB 4326
سدیم هگزا متا فسفات
  • شکل و حالت فیزیکی
    پودر سفید
  • نقطه ذوب
    628 °C
  • نقطه جوش
    1500 °C
  • دانسیته
    2/181 g/cm3
  • ضریب شکست (n20/D­­)
    1/482
  • دمای نگهداری
    2-8 °C
  • حلالیت در آب
    محلول در آب
  • شماره CAS
    10124-56-8
  • Safety Statements
  • مراجع MSDS
  • ارائه دهنده
    زبان
  • انگلیسی
  • Chemical Properties
    • white granular solid

  • General Description
    • سدیم هگزا متا فسفات یک ترکیب هگزامر است که در تصفیه آب برای نرم کردن و پاک کردن آب مورد استفاده قرار می گیرد.

      سدیم هگزا متا فسفات در تولید ذرات سرامیکی بر پایه ی رسوبی به کار می رود و به عنوان یک عامل دیسپرس کننده برای تجزیه خاک رس برای ارزیابی بافت خاک استفاده می شود. همچنین این ماده به عنوان یک ماده فعال در خمیر دندان به عنوان ماده ضد عفونی کننده مورد استفاده قرار می گیرد.
      پودر پنیر، شیرینی پخته شده، سفیده تخم مرغ، گوشت چرخ کرده، فیله ماهی، ژله میوه، دسر یخ زده، سس سالاد، شاه ماهی، غلات صبحانه، بستنی، آبجو و نوشیدنی های بطری می تواند حاوی سدیم هگزا متا فسفات باشد.

  • Synthesis
    • 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 → 2NaH2PO42H2O + CO2 ↑ NaH2PO42H2O [△] → Na2H2PO4 + 2H2O 2NaH2PO4 [△] → Na2H2P2O7 + H2O Na2H2P2O72NaPO3 + 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 + 5O22P2O5 P2O5 + Na2CO32NaPO3 + CO26NaPO3 [△] → (NaPO3) 6

  • Usage
    • 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.

  • Preparation products

    Disodium monofluorophosphate-->silk scouring agent AR-617

  • Raw materials

    Sodium hydroxide-->Sulfuric acid -->Sodium carbonate-->Phosphorous acid-->Sodium sulfide-->Phosphorus-->White phosphorus-->Sodium dihydrogenorthophosphate-->Sodium dihydrogen phosphate-->Sodium metaphosphate-->GRAPHITE, FUSION CRUCIBLE, DRILLPOINT, UNPURIFIED, VOLUME 7.88CC