二りん酸二水素α,β-二ナトリウム

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H319：強い眼刺激

• 注意書き

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

二りん酸二水素α,β-二ナトリウム 価格

MSDS Information

• Disodium pytophosphate

二りん酸二水素α,β-二ナトリウム 化学特性,用途語,生産方法

• 定義

  本品は、ピロリン酸の二ナトリウム塩であり、次の化学式で表される。

• 化粧品の成分用途

  pH調整剤、キレート剤、腐蝕防止剤、緩衝剤

• 説明

  Sodium acid pyrophosphate (SAPP), or disodium pyrophosphate, is a condensed phosphate formed when sodium orthophosphate is heated to remove the water. It is an inorganic compound consisting of sodium cations and pyrophosphate anion. It is used in food mainly for its two properties: It is a leavening acid that combines with baking soda to release carbon dioxide to improve the texture and volume of baked goods. It is a chelating agent to chelate iron to prevent discolouration in processed potatoes. It is extensively used in food processing, such as in canned seafood, cured meat, and potato products, to adjust the pH, maintain colour, improve the water-holding capacity, and reduce purge during retorting. However, little is known about its toxicity[1].

• 化学的特性

  Disodium dihydrogendiphosphate [7758-16-9], disodium diphosphate, acidic sodium pyrophosphate, Na2H2P2O7, Mr 221.97, d 2.31. Its solubility in water is 13g Na2H2P2O7/100g H2O at 20 °C, and 20g at 80°C. The pH of a 1% aqueous solution is 4.1. The usual commercial product is the anhydrous, nonhygroscopic salt in powder form. The hexahydrate, Na2H2P2O7.6H2O, d 1.85, crystallizes from aqueous solution below 27 °C. Above this temperature, it is converted to the anhydrous form. Disodium diphosphate is used as a (tropically stable) acid carrier in baking powder, for improvement of flow properties in flour, for pH regulation, and in dental care products for prevention of tartar formation.

• 製造方法

  Disodium dihydrogendiphosphate is produced from sodium dihydrogenmonophosphate by heating at 200-250℃：
  Na2CO3+2H3PO4→2NaH2PO4+H2O+CO2↑
  2NaH2PO4→Na2H2P2O7+H2O

• 一般的な説明

  The APP (amyloid precursor protein) gene is mapped to human chromosome 21q21.3. It encodes a integral membrane protein. APPα is a soluble protein generated by sequential cleavage with α and γ secretase.

• 安全性プロファイル

  Poison by intravenous route. Moderately toxic by ingestion and subcutaneous routes. An irritant to skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of POx, and Na2O.

二りん酸二水素α,β-二ナトリウム 上流と下流の製品情報

二りん酸二水素α,β-二ナトリウム 生産企業

Global(364)Suppliers

7758-16-9, 二りん酸二水素α,β-二ナトリウム キーワード