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All kinds of Mineral and Chemicals since 1970’s.


Zinc Oxide

Rs. 60.00
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Zinc Oxide (Chinese white; zinc white). CAS: 1314-13-2. ZnO. HSN: 2817


Properties: Coarse white or grayish powder, odorless, bitter taste, absorbs carbon dioxide from the air, has greatest UV absorption of all commercial pigments, d 5.47, mp 1975C, soluble in acids and alkalies, insoluble in water and alcohol. Noncombustible.


Derivation:

(a) Oxidation of vaporized pure zinc (French process),

(b) roasting of zinc oxide ore (franklinite) with coal and subsequent oxidation with air,

(c) similar treatment starting with other ores,

(d) oxidation of vapor-fractionated die castings.


Grade: American process, lead-free; French process, lead-free, green seal, red seal, white seal (according to fineness); leaded (white lead sulfate); USP; single crystals.


Hazard: zinc oxide fume is harmful by inhalation. Zinc oxide powder reacts violently with chlorinated rubber at 215C. TLV (fume): 5 mg/m³ in air.


Use: Accelerator activator, pigment and reinforcing agent in rubber, ointments, pigment and mold-growth inhibitor in paints, UV absorber in plastics, ceramics, floor tile, glass, zinc salts, feed additive, dietary supplement, seed treatment, cosmetics, photoconductor in office copying machines and in color photography, piezo-electric devices, artists' colorant.

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All kinds of Mineral and Chemicals since 1970’s.