ALUMINUM POTASSIUM SULFATE

Reported in EPA TSCA Inventory.

The Potassium aluminum sulfate is an inorganics with the formula Al.2H₂O₄S.K. The IUPAC name of this chemical is aluminum potassium disulfate. With the CAS registry number 10043-67-1, it is also named as Alum, potassium.  It is colorless block crystal or crystalline powder which is easily soluble in water and the aqueous solution is acidic. What's more, it can hydrolysis in water to obtain aluminum hydroxide gel precipitation. It also can slowly dissolve in glycerin and insoluble in ethanol. In addition, this chemical is commonly found in its dodecahydrate form as KAl(SO4)₂·12(H₂O). When heated to decomposition it emits toxic vapors of SO_x.

The other characteristics of this product can be summarized as: (1)ACD/LogP: -1.03; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -5.53; (4)ACD/LogD (pH 7.4): -5.53; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)#H bond acceptors: 4; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 0; (10)Polar Surface Area: 82.98 Å²; (11)Enthalpy of Vaporization: 62.94 kJ/mol; (12)Vapour Pressure: 3.35E-05 mmHg at 25°C; (13)Exact Mass: 257.848704; (14)MonoIsotopic Mass: 257.848704; (15)Topological Polar Surface Area: 177; (16)Heavy Atom Count: 12; (17)Formal Charge: 0; (18)Complexity: 62.2.

Preparation of Potassium aluminum sulfate: Adding industrial aluminum potassium sulfate in water to dissolved. After purification, filtration, evaporation, crystallization, separation, drying and screening to get the product.

Uses of Potassium aluminum sulfate: It is used as purifying agent, fruits and vegetables crispping agent and leavening agent. China allows that it is used in fried food, chips, soy products, baking powder, saltine crackers, puffed food and aquatic products. What's more, it is an astringent/styptic and antiseptic. For this reason, it can be used as a natural deodorant by inhibiting the growth of the bacteria responsible for body odor.

People can use the following data to convert to the molecule structure. 
1. SMILES:[Al+3].[K+].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O
2. InChI:InChI=1/Al.K.2H2O4S/c;;2*1-5(2,3)4/h;;2*(H2,1,2,3,4)/q+3;+1;;/p-4
3. InChIKey:GRLPQNLYRHEGIJ-XBHQNQODAE