1303-52-2 Usage
Chemical Properties
solid
Physical properties
Brown powder; decomposes at 100°C; insoluble in water; soluble in acid.
Uses
Different sources of media describe the Uses of 1303-52-2 differently. You can refer to the following data:
1. In gold-plating solutions; for decorating porcelains.
2. Synthesis of gold hydroxide complexes with N-heterocyclic carbene has been reported. A variety of perfluoroaryls, N-heterocyclic and alkynyl compounds may be synthesized by reacting gold(III) hydroxide with C–H and N–H compounds and arylboronic acids. Potassium aurate may be prepared by heating auric hydroxide with conc. KOH. 3
Production Methods
Gold(III) hydroxide is precipitated by mixing aqueous solutions of potassium auric chloride and sodium carbonate:2KAuCl4 + 3Na2CO3 + 3H2O → 2Au(OH)3 + 6NaCl + 2KCl + 3CO2 The product usually contains about three molecules of water of crystallization. It may alternatively be prepared by adding caustic soda solution to sodium auric cyanide: NaAu(CN)4 + 3NaOH → Au(OH)3 + 4NaCN.
Check Digit Verification of cas no
The CAS Registry Mumber 1303-52-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,0 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1303-52:
(6*1)+(5*3)+(4*0)+(3*3)+(2*5)+(1*2)=42
42 % 10 = 2
So 1303-52-2 is a valid CAS Registry Number.
InChI:InChI=1/Au.H2O/h;1H2/q+1;/p-1
