potassium alum 99.2%

potash alum AlK (SO4) 2 12H2O
1.Aluminium potassium sulfate:99.2%,99.5%
2.Heavy metal(As Pb):0.002max
3.Grade: food,industry
Specifications
Potassium alum/Food Grade
This product has antibacterial, astringent, used as a purifying agent, extinguishing agent, expanding agent, drugs.
potassium aluminum sulfate (Alum), also known as: alum, potassium alum, potassium Lvfan, contain water of crystallization of potassium sulfate and aluminum sulfate salts. Colorless cubic crystals, glass luster. Density 1.757g/cm3, melting point 92.5 °C. 9 64.5 °C lost their crystal water molecules, 200 °C when the crystal water molecules lost 12, dissolved in water, insoluble in ethanol. Alum of the sour taste, cold, toxic. So have antibacterial, astringent, etc., can be used as medicine. Alum can also be used to prepare the aluminum salt, baking powder, paint, Tanning, clarifying agent, mordant, paper, waterproof agent.

Quality Index:
(GB 1895-94)
Project
Content
Aluminum potassium sulfate (dry basis)
≥ 99.2%
Moisture
≤ 1.0%
iron (Fe)
≤ 0.01%
heavy metals (Pb)
≤ 0.002%
arsenic (As)
≤ 0.0002%
water insoluble matter
≤ 0.2%
Uses
1. As a purifying agent, fruits and vegetables crisp agent and leavening agents, our requirement for fried food, chips, soy products, baking powder, saltine crackers, puffed food and aquatic products, according to production needs proper use, aluminum residue of not more than 100mg/kg.
2. Rosin paper used for the settlement agent, Cho-purification to help settling agent, hardener photographic paper, foam rubber to help foaming agent, mordant dyeing, etc..
3. Used as a purification Cho's help settling agent. Rosin paper industry as a settlement agent. Photographic fixer and paper industry for the hardener. Printing and dyeing industry as a mordant and resist agent against discharge process. Zinc electroplating used as conductive agent to help. In addition, such as foam rubber, blowing agent to help.
4. The food industry can be paired baking powder and baking soda is also used as a leavening agent.

Any questions, contact tracy.
Natural alunite fragmented, calcination, dehydration, leaching, settlement, obtained crystallization. Sulfuric acid can also be used for generating decomposition bauxite aluminum sulfate powder and potassium sulfate solution reaction, filtration, crystallization, centrifugal dewatering, drying in the system. Paper Industry for Rosin settlement agent, help purify the Choshui Shen agent, Photographic Paper hardener, foam rubber foam, help, help -- galvanized the conductive agent, and dyeing of Mordant, anti-Discharge Process-dye. Convergence can be used in cosmetics. Convergence on medicine for medicine, the symptoms and hemostatic medicine. Food agent for osteoporosis.

Also known as potassium alum (potash alum), Alumina, the Health alum, alum. Colorless cubic octahedral crystal cube or monoclinic crystal. No foul, or slightly sweet convergence Contributing Factors. 1.757g/cm3 density. 92.5 ° C melting point. At 64.5 ° C lost nine crystal water, 200 ° Close all white crystalline water into cavernous Anhydrous become white powder burn alum. 92.5 ° C melting point. Dissolved in water (12.2%, 25 ° C), 1% aqueous solution of pH 4.2, in the water hydrolysis into aluminum hydroxide colloid was almost insoluble in alcohol. Extreme water-soluble and water-soluble and acid, dissolved in ethanol and acetone.