7788-99-0 Usage
Chemical Properties
deep violet-red crystals
Uses
Different sources of media describe the Uses of 7788-99-0 differently. You can refer to the following data:
1. Chromium potassium sulfate dodecahydrate is used in preparation of chromium standard solutions.
2. Chromium potassium sulfate dodecahydrate is used in method for synthesizing metal-organic terephthalate structure MIL-101 (Cr).
3. Chromium(III) potassium sulfate dodecahydrate [KCr(SO4)2.12H2O] has been used for the dissolution of gelatin in various studies.It may be used as a starting material in the synthesis of quasi-monodisperse spherical core-shell particles of Cr/α-Cr2O3 to be used as solar absorbers.
General Description
Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is a violet colored solid. It has been synthesized by reacting sulfur dioxide with potassium dichromate (diisolved in sulfuric acid) at -38°C. It is widely used chemical in dyeing and textile industry.
Purification Methods
Crystallise it from hot water (2mL/g) by cooling.
Check Digit Verification of cas no
The CAS Registry Mumber 7788-99-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,8 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7788-99:
(6*7)+(5*7)+(4*8)+(3*8)+(2*9)+(1*9)=160
160 % 10 = 0
So 7788-99-0 is a valid CAS Registry Number.
InChI:InChI=1/2Cr.2K.4H2O4S.24H2O/c;;;;4*1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;/h;;;;4*(H2,1,2,3,4);24*1H2/q2*+3;2*+1;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-8
