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Zinc powder specially used for chemical industry


China Chemicals| 13/07/2009 18:56:57
Product Property:
Molecular formula: Zn
Molecular Weight: 65.38
Physical Property: light grey metal fine powder.
Density: 7.14g/cm3
Melting Point: 419.4°C
Boiling Point: 908%
Chemical property: insoluble in water, soluble in acid and alkali, slowly soluble in acetic acid, ammonia water, it has strong reducing performance and give out hydrogen. Lumps when being wet, keeps stable in dry air and generates white basic carbonate covering in its surface in wet air. When combusting in the air, it can generate blue green flame and generate Zinc Oxide. High pure Zinc act slowly with sulfuric acid and nitric acid, while act fast when it contains few of other metals such as steel, tin and lead.

Technology Index:
Specification
of
project
Chemical Components % Particle diameter
Pure Zinc
(%)
Zinc oxide
(%)
Lead
(%)
Lron
(%)
Cadmium
(%)
Average particle
diameter
µm
Maximum particle
diameter
µm
Residual
on sieve
(%)
2000mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤2 ≤6.5 ≤0.1
1500mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤3 ≤8 ≤0.1
800mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤5 ≤15 ≤0.1
600mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤6 ≤22 ≤0.1
500mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤7 ≤25 ≤0.1
400mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤8 ≤38 ≤0.1
325mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1 ≤9 ≤45 ≤0.1
200mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1     ≤0.1
120mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1     ≤0.1
80mesh ≥99 ≥96 ≤0.1 ≤0.05 ≤0.1     ≤0.1


Product Characteristics:
The highly active Zinc powder produced by our company has some characteristics of high contain of Zinc, low impurity elements, smooth surface, total Zinc contain is more than 99%, metal Zinc contain is more than 97%.

Product Usage:
It can be used in organic chemical industry, inorganic chemical industry, medicine, farming chemicals, dyeing and finishing, reducing agent, catalyst and other industries.
Production of chemical industry: It is used as reducing agent in insurance powder((Sodium Hydrosulfite), Lithopone(Pigment White), Rongalite(Sodium Formaldehyde Sulfoxylate), intermediate of dyestuff, its particle is thicker than the Zinc powder used for coating, average particle diameter is l0-12mm.
Production of Zinc anti-corrosive coating: Zinc is to use for corrosion-proof of steel & iron parts, the methods of coating include heat plating, electric plating, heat-spray coating, Zinc-rich coating, powder plating, etc, among which, heat plating is the most important method. Zinc-rich coating is mainly used for coating those large-sized parts that can't use heat plating and electric plating such as large-size outside steel construction (ocean project, bridge, pipe, high way barrier, etc), ship and container. According to the different binder, Zinc-rich coating can be classified into organic Zinc-rich coating and inorganic Zinc-rich coating. Organic Zinc-rich coating usually used epoxy ester, epoxy resin, chlorinated rubber, ethylene series resin and polyurethane as binder; Contain of Zinc powder in dry film can reach 85%-99%. inorganic zinc-rich painting us water borne/lithium silicate, water borne potassium silicate, metasilicic acid ethylene or cement flurry as basic materials, its contain in dry film can reach 92%. The average particle diameter of Zinc powder used for coating is 2-3mm and 5-7mm, the powder can distribute at narrow particle level with good dispersion.
Production of mechanical Zinc and penetrated Zinc plating: They are mainly used for production of mechanical Zinc plating such as screw, iron nail, iron wire and shooting nail. The fined Zinc powder used for mechanical Zinc plating technique is produced by our company, its air flow and wind speed multilevel particle is constructed from 300-1500 mesh, its mare specification covers 5#, 6#, 8#,10# which suit for mechanical Zinc plating production technique with different technical standards at different levels, its plating layer is smooth. In additions, special Zinc powder that is suitable for penetrated Zinc plating technique standard has some characteristics such as average distribution of particle, not easy to be oxide in the process of usage.
Hydrometallurgy: It can be used for solution cleaning and metal replacement and recycling, for example, refine gold silver and non ferrous metal, etc.
Medicine and farming chemical: Zinc powder as a reducing agent can be sued for producing salicylic acid, indometacin, amidopyrine etc. As raw materials it can be used for zineb, Zinc phosphoride, high-effective and low-poisonous kikumycin farming chemical etc..

Package and Storage:
Package: It can be packed in plastic hag putting inside iron barrel (50KG/barrel) or packed aceording to customers' requirement.
Special package, 0.5T,1T in barrel, 0.5T,1T,2T in weaved bag.
Transportation and storage
1. Zinc powder should be transported in the condition of damp-proof fire-proof strike-falling avoided.
2. Zinc powder (it is easy to get wet and turns into lump), should be stored in vacillated, dry and fire-proof storeroom.
Capability of supply: 13000T/year