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Zinc Oxide in Indirect Process

Zinc Oxide in Indirect Process

It is used as a white pigment for dyeing, paper making, matches and medicine industry. Used in rubber industry as natural rubber, synthetic rubber and latex, surfactant, reinforcing agent and colorant.

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    Characteris:

    Zinc Oxide is the white powder, insoluble in water, amphoteric oxide, would be react with acid and alkali, it have good quality of Pigment.


    Specification:

    Index Iterm

    Target

    CB01-05(11)

    CB01-05

    Superior Quality

    Firsts

    Conforming Product

    Superior Quality

    Firsts

    Conforming Product

    Zinc Oxide %≥

    99.70

    99.50

    99.40

    99.70

    99.50

    99.40

    Metals %≤

    None

    None

    0.008

    None

    None

    0.008

    Lead Oxide %≤  

    0.037

    0.05

    0.14

    Manganese Oxide %≤

    0.0001

    0.0001

    0.0003

    Copper Oxide %≤

    0.0002

    0.0004

    0.0007

    Insoluble Matters in HCL Solution %≤

    0.006

    0.008

    0.05

    Losses on Ignition %≤

    0.2

    0.2

    0.2

    Screening Residues
    (through 45 u m wet mesh) %≤

    0.10

    0.15

    0.20

    0.10

    0.15

    0.20

    Soluble Matters in Water %≤

    0.10

    0.10

    0.15

    0.10

    0.10

    0.15

    Volatiles at105℃ %≤

    0.3

    0.4

    0.5

    0.3

    0.4

    0.5

    Oil Absorption %≤  

    14

    14

    14

    Colour(compared with 
    standard specimen) %≤

    Approximate

    Tiny

    Tiny

    Colour Killing %≤

    100

    95

    90


    Production method:

    Zinc Oxide in indirect process or French process, metallic zinc is melted in a graphite crucible and vaporized at temperatures above 907 °C (typically around 1000 °C). Zinc vapor reacts with the oxygen in the air to give ZnO, accompanied by a drop in its temperature and bright luminescence. Particles are transported into a cooling duct and collected in a bag house.


    Application:

    It is used as a white pigment for dyeing, paper making, matches and medicine industry. Used in rubber industry as natural rubber, synthetic rubber and latex, surfactant, reinforcing agent and colorant. Zinc Oxide is also used in the manufacture of pigment zinc chrome yellow, zinc acetate, zinc carbonate and zinc chloride. It is also used in electronic laser material, phosphor, feed additive, catalyst, magnetic material manufacturing, etc.

    Zinc Oxide    China Zinc Oxide factory


    ZnO    ZnO price


    Zinc Oxide manufacture    ZnO price list


    Package and storage: 

    25kg paper bag. PGJ bag or woven bag. Zinc Oxide in indirect process should be stored in a well-ventilated area

    Zinc Oxide     ZnO in indirect process


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