Aluminum potassium sulfate composition

Introduction: aluminum potassium sulfate, colorless crystal or powder No smell, slightly sweet and astringent, astringent In the dry air weathering lost crystal water, dissolved in the humid air flowing water It is soluble in glycerin and water, and the aqueous solution shows acid reaction After hydrolysis, aluminum hydroxide colloid precipitates So what is the composition of aluminum potassium sulfate? Let's take a look with the small safety net of Baibai Aluminum potassium sulfate, colorless crystal or powder No smell, slightly sweet and astringent, astringent In the dry air weathering lost crystal water, dissolved in the humid air flowing water It is soluble in glycerin and water, and the aqueous solution shows acid reaction After hydrolysis, aluminum hydroxide colloid precipitates So what's the composition of aluminum potassium sulfate? Let's take a look at it with the small part of Baibai safety net Aluminum potassium sulfate is the double salt of potassium sulfate and aluminum sulfate containing crystal water Chemical formula Kai (SO4) 2.12h2o, colorless cubic, monoclinic or hexagonal crystal, with glass luster, density of 1.757g/cm3, melting point of 92.5 ℃ At 64.5 ℃, 9 molecules of crystal water are lost, and at 200 ℃, 12 molecules of crystal water are lost They are soluble in water and insoluble in ethanol Alum is sour, cold and poisonous Therefore, it has antibacterial and astringent effects and can be used as traditional Chinese medicine Alum can also be used to prepare aluminum salt, fermentation powder, paint, tanning material, clarifier, mordant, papermaking, waterproof agent, etc ① When it is used for fried food, such as fried dough sticks, it is added when mixing with noodles, and the dosage is 10-30g / kg Use too much, there will be astringency Using 6G / kg in shrimp chips can make fried food crispy ② In the processing of fruits and vegetables, it can be added about 0.1% as a brittleness preserving agent When processing Beijing cake, take 2% of the hawthorn fruit puree, heat it in the deep syrup, dissolve it, mix it in the hawthorn fruit puree while it is hot, and then pour it into the molding machine for condensation When processing white sugar lotus root slices, the lotus root slices are immersed in the solution to prevent oxidation and browning After soaking, the lotus root is scalded in boiling water In this process, 0.8% of the fresh lotus root and 3% of sodium carbonate are added successively, which is beneficial to improve the quality ③ As a color protecting agent for pickles, the dosage is 0.2% ~ 2% About 0.01% is used as water purification agent It can also be used for salting and dehydration of jellyfish, whitebait, etc In addition, the product, like anhydrous aluminum potassium sulfate (alum), is also one of the important raw materials for the preparation of composite bulking agent The above is the introduction of the ingredients of aluminum and potassium sulfate provided by the small edition of Baibai safety net I sincerely hope it can help you! If you want to know more about food safety, please pay more attention to Baibai safety net bar! Editor in charge: Wu Mengli