焦磷酸鈉，又稱(chēng)四磷酸鈉和磷酸四鈉，可分為無(wú)水和十水合物。無(wú)水物質(zhì)為無(wú)色或白色晶體或結(jié)晶性粉末，無(wú)水物質(zhì)為白色粉末，易溶于水，不溶于乙醇等有機(jī)溶劑。

Sodium pyrophosphate, also known as sodium tetraphosphate and tetrasodium phosphate, can be divided into anhydrous and decahydrate. Anhydrous substances are colorless or white crystals or crystalline powders, while anhydrous substances are white powders that are easily soluble in water and insoluble in organic solvents such as ethanol.

在食品工業(yè)中焦磷酸鈉用作品質(zhì)改良劑、乳化劑、緩沖劑和螯合劑。下面氫氧化鉀廠(chǎng)家為您解答：

Sodium pyrophosphate is used as a quality improver, emulsifier, buffer, and chelating agent in the food industry. Potassium hydroxide manufacturer below

1.作為食品品質(zhì)改良劑、PH調(diào)節(jié)劑、金屬離子螯合劑、乳化分散劑、粘合劑等。在食品工業(yè)中，主要用于肉類(lèi)和水產(chǎn)品加工，提高PH值和保水能力，保持肉類(lèi)鮮嫩，穩(wěn)定天然色素，防止脂肪腐敗;

1. As a food quality improver, pH regulator, metal ion chelating agent, emulsifying dispersant, adhesive, etc. In the food industry, it is mainly used for processing meat and aquatic products, improving pH value and water retention capacity, maintaining meat freshness, stabilizing natural pigments, and preventing fat spoilage;

2.用于面食，增強(qiáng)面食的加工性能，提高面食的品質(zhì);

2. Used for pasta to enhance its processing performance and improve its quality;

3.用作罐頭、果汁飲料和乳制品的品質(zhì)改良劑;

3. Used as a quality improver for canned goods, juice drinks, and dairy products;

4.用于避免水果加工后變色;

4. Used to avoid discoloration after fruit processing;

5.此外，它還可以用作雞蛋的清洗液、奶酪的乳化劑、醬油和豆?jié){的添加劑。

5. In addition, it can also be used as egg cleaning liquid, cheese emulsifier, soy sauce and soybean milk additive.

焦磷酸鈉水溶液呈堿性，煮沸后水解為磷酸氫二鈉。在干燥空氣中風(fēng)化，容易吸收空氣中的水分而潮解。能與金屬離子發(fā)生絡(luò)合反應(yīng);遇銀生成白色焦磷酸銀。

Sodium pyrophosphate aqueous solution is alkaline and hydrolyzes to disodium hydrogen phosphate after boiling. Weathering in dry air can easily absorb moisture from the air and cause deliquescence. Capable of complexing with metal ions; When it encounters silver, it generates white silver pyrophosphate.

焦磷酸鈉不僅具有軟化水的作用，還能復(fù)溶鈣鎂的不溶性鹽，如服裝纖維中的不溶性鈣皂或其他金屬皂形成的污垢，使其復(fù)溶，提高去污能力。此外，焦磷酸鈉具有解絮凝作用，使油乳化，稱(chēng)為膠溶性。還可以進(jìn)一步降低表面活性劑溶液的表面張力和界面張力，起到助洗的作用。焦磷酸鈉在機(jī)械加工中用作除銹劑，在化工生產(chǎn)中用作分散劑和乳化，也可用于水處理劑，如軟水器、石油鉆井等。

Sodium pyrophosphate not only has the effect of softening water, but also can dissolve insoluble salts of calcium and magnesium, such as insoluble calcium soap in clothing fibers or dirt formed by other metal soaps, to improve its decontamination ability. In addition, sodium pyrophosphate has a deflocculating effect, which emulsifies oil and is called colloidal solubility. It can also further reduce the surface tension and interfacial tension of the surfactant solution, playing a role in assisting washing. Sodium pyrophosphate is used as a rust remover in mechanical processing, as a dispersant and emulsification agent in chemical production, and also as a water treatment agent, such as water softeners and petroleum drilling.

焦磷酸鈉具有普通聚合磷酸鹽的一般性質(zhì)，即乳化性、分散性、防止脂肪氧化、改善蛋白質(zhì)的結(jié)塊性、控制食品在高pH值下的氧化和發(fā)酵。焦磷酸鈉在食品工業(yè)中用作品質(zhì)改良劑、乳化劑、緩沖劑和螯合劑。罐頭中螯合金屬離子可以提高成品質(zhì)量。奶酪的融化劑和乳化劑。用于醬油、豆瓣醬，可防止豆瓣醬褐變，改善色澤。

Sodium pyrophosphate has the general properties of ordinary polyphosphates, including emulsification, dispersibility, prevention of fat oxidation, improvement of protein clumping, and control of food oxidation and fermentation at high pH values. Sodium pyrophosphate is used as a quality improver, emulsifier, buffer, and chelating agent in the food industry. Chelated metal ions in cans can improve the quality of finished products. Melting agents and emulsifiers for cheese. Used in soy sauce and bean paste, it can prevent the bean paste from browning and improve its color.

焦磷酸鈉需要避免與鋁、鋁合金和氧化物接觸。易溶于水，在20度的100克水中溶解度為6.23克，水溶液呈堿性;不溶于酒精。水溶液在70以下穩(wěn)定，煮沸時(shí)會(huì)水解成磷酸氫二鈉。能與堿土金屬離子形成絡(luò)合物;當(dāng)與銀相遇時(shí)，產(chǎn)生白色焦磷酸銀。很容易吸收空氣中的水分而潮解。

Sodium pyrophosphate needs to avoid contact with aluminum, aluminum alloys, and oxides. It is easily soluble in water, with a solubility of 6.23 grams in 100 grams of water at 20 degrees Celsius, and the aqueous solution is alkaline; Insoluble in alcohol. The aqueous solution is stable below 70 and will hydrolyze to disodium hydrogen phosphate when boiled. Can form complexes with alkaline earth metal ions; When it meets silver, white silver pyrophosphate is produced. It is easy to absorb moisture from the air and deliquescence.

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