13548-42-0 Usage
Chemical Properties
reddish brown; used as a fungicide, to weatherproof textiles, in epoxy adhesives, and to preserve wood [KIR78]
Physical properties
The neutral form is a reddish-brown crystalline solid; decomposes slowly to copper(II) chromite when heated above 400°C; insoluble in water; soluble in acids. The basic chromates are crystals having colors that vary from yellow to chocolate-brown to lilac, depending on their compositions and chromate to hydroxide molar ratios. They lose water when heated at 260°C, are insoluble in water, and are soluble in nitric acid.
uses
It is used in wood preservation and in textile weatherproofing.
Preparation
Copper(II) chromate(VI) is a red or reddish-brown, crystalline material prepared by the careful heating of a mixture of copper(II) oxide and chromium(VI) oxide or by reaction of copper(II) oxide with solutions of chromic acid.
Check Digit Verification of cas no
The CAS Registry Mumber 13548-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,4 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13548-42:
(7*1)+(6*3)+(5*5)+(4*4)+(3*8)+(2*4)+(1*2)=100
100 % 10 = 0
So 13548-42-0 is a valid CAS Registry Number.
InChI:InChI=1/Cr.Cu.4O/q;+2;;;2*-1/rCrO4.Cu/c2-1(3,4)5;/q-2;+2