What is ammonium aluminum sulfate

Introduction: aluminum ammonium sulfate is a kind of transparent crystal without color So, what is ammonium aluminum sulfate? Let the small editor of Baibai safety net lead you to learn more about it! When we eat aluminum ammonium sulfate, as long as it does not exceed the maximum dosage prescribed by the state, it will not have a negative impact on the human body So, what is ammonium aluminum sulfate? Baibai safety net and you to understand it! Definition: ammonium aluminum sulfate [nh4al (SO4) 2] is a colorless, transparent crystal or white powder It is slightly soluble in water, dilute acid and glycerin, and its water solubility is acid Insoluble in alcohol It is usually in the form of 12 crystal water [aluminum ammonium sulfate dodecahydrate, commonly known as ammonium alum, chemical formula nh4al (SO4) 2.12h2o] 2 Character: slightly sweet and astringent At 120 ℃, the crystal water of 10 molecules is lost, it becomes anhydrous at about 250 ℃, and decomposes above 280 ℃ 1g is dissolved in 7ml of water and 0.5ml of boiling water It is soluble in glycerin, almost insoluble in ethanol, and the aqueous solution is acid to litmus The pH of 0.05mol/l solution is 4.6 The relative density is 1.64 The refractive index is 1.459 3 Storage: the packing shall be complete and the loading shall be safe During transportation, ensure that containers do not leak, collapse, fall or damage It is strictly prohibited to mix with oxidants, edible chemicals, etc During transportation, it shall be protected from sun exposure, rain and high temperature The vehicle shall be thoroughly cleaned after transportation 4 Physical and chemical properties: colorless to white crystal, or crystalline powder, tablet, block Odorless, astringent, melting point 93.5 degrees When heated to 250 ℃, the crystallized water is removed and becomes white powder, i.e alum is burned More than 280 degrees will decompose and release ammonia Soluble in water (15g at 20 ℃), dilute acid and glycerin, the aqueous solution is acid and insoluble in ethanol The above is the answer about what ammonium aluminum sulfate is provided by Baibai safety net I hope my article will let you have a clearer understanding of this problem! To learn more about food safety, please pay more attention to Baibai safety Internet bar! Editor in charge: Wang Xiujuan