15785-09-8 Usage
Chemical Properties
white, gelatinous precipitate; however, impurities impart yellow, brown, or pink coloration; used to produce cerium salts to color glass [HAW93]
Physical properties
White gelatinous precipitate; decomposes on heating, forming oxide; soluble in acids and ammonium carbonate solution; insoluble in alkalis.
Uses
The pure compound is used in glazes and enamels as an opacifying agent. It also is used to make colored glass, imparting yellow color to the glass. The crude form is used in flaming arc lamps. Another application of this compound is in the preparation of several other cerium salts.
Preparation
Cerium(III) hydroxide is obtained in industrial scale from monazide sand, (Ce, La, Th)PO4. In the laboratory, it may be prepared by treating caustic soda solution with cerium(III) chloride, followed by crystallization. CeCl3 + 3NaOH → Ce(OH)3 + NaCl.
Check Digit Verification of cas no
The CAS Registry Mumber 15785-09-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,7,8 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 15785-09:
(7*1)+(6*5)+(5*7)+(4*8)+(3*5)+(2*0)+(1*9)=128
128 % 10 = 8
So 15785-09-8 is a valid CAS Registry Number.
InChI:InChI=1/Ce.3H2O/h;3*1H2/q+3;;;/p-3
