zinc oxide

Quantity Order:

Origin:

China

Payment Method:

L/C

Quantity:

25kg

Pack. & Delivery:

woven bag

Molecular formular: ZnO
Molecular weight: 81.39
As white pigment used in printing & dyeing, paper-making, and pharmaceutical industries; As cure activating ingredient, strengthening agent and colorant of natural rubber and synthetic rubber, also used in the production of zinc
packing and storage: in plastic woven bag lined with plastic film or in water-proof paper bag

Product Description
Molecular formular: ZnO
Molecular weight: 81.39

item ( indirect method) First grade Second grade Third grade

ZnO dry 99.7min 99.7min 99.7min

Pb 0.037max 0.06max 0.1max

Mn 0.0001max 0.0001 max 0.0001max

Cu 0.0002max 0.0002max 0.0002max

Insoluble in hydrochloric acid 0.006max 0.01max 0.1max

Loss on ignition 0.2max 0.2max 0.2max

Screen residues( through 45 micron wet screen) 0.1max 0.1max 0.1max

volatile( 105 degree Celsius) 0.3max 0.3max 0.3max

Index item( direct method) Rubber-1 Rubber-2 Paint-1 Paint-2
Zinc oxide% 99.5min. 99.0min. 99.5min. 99.0min.
Lead oxide( Pbo) % 0.12max. 0.20max. - -
Cadmium oxide ( Cdo) % 0.02max. 0.05max. - -
Copper Oxide( Cuo) % 0.006max. - - -
Mangaese( Mn) % 0.0002max. - - -
Metallic metals( as Zn) None None None
Metallic metals( as Zn) None None None None
Insolubles in HCL solution % 0.03max. 0.04max. - -
Losses on ignition % 0.4max. 0.6max. 0.4max. 0.6max.
Soluble matters in water; % 0.4max. 0.6max. 0.4max. 0.6max.
Screening residues( 45µ m wet screen) %
0.28max. 0.32max. 0.28max. 0.32max.
105 degree moisture % 0.4max. 0.4max 0.4max 0.4max
Hiding power( g/ m2) - - 150max 150max
Oil absorption, g/ 100g - - 18max 20max
Colour killing% - - 100max 95max

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