zinc oxide for varistor

Molecular formula: ZnO 

Molecular weight:81.38

Zinc  Oxide  is  an  important  chemical  raw  material,  it  is  a  fine  powder, 
insolube  in  water, soluble  in  acids ,  alkalier  or  ammonia,  it  is  used  in  rubber 
goods,  paints,  medicine,  inks,telegragh-cable,electronic  elements,  paper,  enamel,  match,  cosmetics   and  other   chemicals.



Specifications

Index

Zinc oxide on dry sample                     % min

99.7

Potassium  oxideK                     % max 

0.0010

Sodium  oxideNa                          % max

0.0010

Iron  oxideFe                              % max

0.0020

Cadmium  oxideCd                        % max

0.0050

Lead  oxidePb                             % max

0.035

Copper  oxideCu                           % max

0.0002

Metal  ZincZn                             % max

Moisture                                    % max

0.3

Matter  insoluble  in  HCL                 % max

0.006

Loss  on  ignition                             % max

0.2

PH  Value

7.0-7.8

Average particle size D50                        μm max

0.5

Residue  on  45μm  sieve                      % max

0.10


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