Chromium potassium sulfate dodecahydrate

Details:

1. Introduction of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

Chromium potassium sulfate dodecahydrate, with the CAS registry number 7788-99-0, has the quality level of HG3-916-76. With the chemical formula of CrK(SO₄)₂·12H₂O and chemical molecular weight of 499.39, it has other names of Chromium potassium sulfate dodecahydrate.

Quality index or Certificate of Analysis (COA) of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)
 

As one kind of dark purple crystal, this chemical is soluble in water and dilute acid while insoluble in alcohol and could easily weather. When heated to 100 ºC, this chemical lose some crystal water to become green, dihydrate at 110 ºC, oyster anhydride at 350 ºC without water-solubility. For being stable under recommended storage conditions, this chemical should be avoided away from strong oxidizing agents, and its hazardous decomposition products formed under fire conditions are including Sulphur oxides, Potassium oxides, Chromium oxides.

2. Properties of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0) 

Chromium potassium sulfate dodecahydrate has the following detailed property information: (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)Boiling Point: 330 °C at 760 mmHg; (13)Vapour Pressure: 3.35E-05 mmHg at 25°C.

3. The molecular structure of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

You can still convert the following datas into molecular structure:
(1)SMILES: [Cr+3].[K+].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O.O.O.O.O.O.O.O.O.O.O.O.O
(2)InChI: InChI=1/Cr.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4
(3)InChIKey: ZFVHBEKVAITXHW-XBHQNQODAF

4. Safety Information of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

Hazard Codes Xi
Risk Statements 36/38
Safety Statements 22-24/25-37/39-26
WGK Germany 2
RTECS GB6850000
(1). Irritant. This chemical may cause inflammation to the skin or other mucous membranes.

Following are some specific cases and the according meastures:
(1). If inhaled: If breathed in, move person into fresh air. If not breathing give artificial respiration
(2). In case of skin contact: Wash off with soap and plenty of water.
(3). In case of eye contact: Flush eyes with water as a precaution.
(4). If swallowed: Never give anything by mouth to an unconscious person. Rinse mouth with water.

5. Preparation of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

Chromium potassium sulfate dodecahydrate could be produced through the following way: Potassium dichromate is dissolved in hot water, and then filtered. The filtrate turned to dark green after addition of concentrated sulfuric acid and ethanol(ethanol is dropped until the color of filtrate do not change again). Evaporate the filtrate, and add water until the relative density becomes 1.5. And you can get the product after crystallizing and drying.

6. Application of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

Chromium potassium sulfate dodecahydrate could be applied as tanning extracts, dye mordantin in printing and dyeing industry and fixing agent in photography, and it could also be used as analytical reagent. In addition, it is also used as food additive.

7. Toxicity of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

The toxicity data is as follows:

8. Package of Chromium potassium sulfate dodecahydrate (CAS No. 7788-99-0)

(1). Chromium potassium sulf