ZINC OXIDE
SYNONYM: ZINC WHITE
FORMULA: ZNO
M. W.: 81.37
CAS NO.: 1314-13-2
GRADE: TECH. GRADE
DESCRIPTION: WHITE POWDER, SPECIAL GRAVITY 5.6; INSOLUBLE IN
WATER AND ALCOHOL, SOLUBLE IN ACIDS, ALKALI, AMMONIUM CHLORIDE, IT CAN SLOWLY
BECOME ZINC CARBONATE BASIC ABSORPTING CO2 AND H2O IN
AIR.
SPECIFICATIONS:
|
ITEM
|
RUBBER
|
PAINT
|
|
INDEX
|
ZnO-X1
|
ZnO-X2
|
ZnO-T1
|
ZnO-T2
|
ZnO-T3
|
|
ZINC OXIDE %min.
|
99.5
|
99
|
99.5
|
99.0
|
98.0
|
|
COPPER OXIDE
%max.
|
0.006
|
---
|
---
|
---
|
---
|
|
CADMIUM OXIDE
%max.
|
0.02
|
0.05
|
---
|
---
|
---
|
|
LEAD OXIDE
%max.
|
0.12
|
0.2
|
---
|
---
|
---
|
|
MANGENESE %max.
|
0.0002
|
---
|
---
|
---
|
---
|
|
INSOLUBLES IN
HCl %max.
|
0.03
|
0.04
|
---
|
---
|
---
|
|
LOSS OF
IGNITION %max.
|
0.4
|
0.6
|
0.4
|
0.6
|
---
|
|
METALLIC ZINC
%max.
|
NONE
|
NONE
|
NONE
|
---
|
---
|
|
HIDING POWER
(g/m2) max.
|
---
|
---
|
150
|
150
|
150
|
|
RESIDUES ON 45μm
%max.
|
0.28
|
0.32
|
0.28
|
0.32
|
0.35
|
|
WATER SOLUBLES
%max
|
0.4
|
0.7
|
0.4
|
0.7
|
1.0
|
|
MOISTURE %max.
|
0.4
|
0.4
|
0.4
|
0.4
|
0.4
|
|
OIL ABSORPTION
%max.
|
---
|
---
|
18
|
20
|
20
|
|
COLOURING POWER
%max.
|
---
|
---
|
100
|
95
|
95
|
|
COLOURING
COMPARED WITH
STANDARD
SPECIMEN
|
---
|
UP TO STANDARD
|
USES: IT IS USED IN RUBBER AND PAINT INDUSTRY.
PACKING: PACKED IN 25KGS/50KGS P.W.BAG AND
20MT/20’FCL.
