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Zinc chloride[ORDER]
(Molecular) Formula: ZnCl2
(Molecular) Weight: 136.30
Physical and chemical nature:
White, hexagonal system, granular crystal or powder. The relative
density is 2.91(25/4℃).The melting point is 283℃.The boiling
point is 732℃.It dissolves easily in water, also in methanol,
ethanol, glycerine, acetone and ether, but insolubilizes in
liquid ammonia. With a strong hygroscopy, it will be deliquesced
by absorbing water under the bare air. Otherwise, it can dissolve
metal oxides and cellulose. Fused zinc chloride has a very good
electric conduction. When scorched, it will generate a thick
white smoke. It is corrosive and poisonous.
Usage:
In the organic synthetic industry it is used as the dehydrated
agent, the condensate agent, and the catalyzer for the production
of Vanillin, anti-inflammatory painkiller and cation exchange
resin. Also used as the solvent of polypropylene. In the dyeing
and weaving industry it is the material (solutizer for cotton
fiber ) for the production of the sliver buckets and shuttle,
improving the binding property of fiber. In the dye industry,
as the stabilizing agent for azoic developed dyes it is applied
in the production of the activated and cation dyes. Besides
these, it is also the cleansing agent for petroleum. the activating
agent for activated carbon, the fire retardant for hard cardboards
and cloth products, and the welding agent for welding electrodes
in eletroplates. In the metallurgy industry, it is applied in
the production of aluminum alloy, light metal deacidification,
and the proofing for metal surface oxide layer. It is also applied
in the production of blueprints. Otherwise, it is used as battery
electrolyte and the material for the production of zinc cyanide
and non-fusible fire-extinguishing foam.
Quality standard:
Index name |
Index |
Model Ⅰ |
Model Ⅱ |
Model Ⅲ |
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Top-quality Products |
First-rate products |
First-rate products |
Pass products |
First-rate products |
Pass products |
Appearance |
White powder or grain |
Clear water? solution |
ZnCl2,% ≥ |
96.0 |
94.7 |
94.7 |
93.0 |
40.0 |
40.0 |
Basic salt,%(calculated by zno) |
1.6-2.0 |
1.6-2.0 |
≤2.0 |
≤2.0 |
0.65-0.85 |
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Sulfate,%≤(Calculated by SO4 |
0.01 |
0.01 |
0.01 |
0.05 |
0.004 |
0.004 |
Ba,% ≤ |
0.1 |
0.1 |
0.1 |
0.2 |
0.04 |
0.04 |
Fe,% ≤ |
0.0005 |
0.0005 |
0.001 |
0.002 |
0.0002 |
0.0004 |
Heavy metal,%≤(calculated by pb) |
0.0005 |
0.0005 |
0.001 |
0.002 |
0.0002 |
0.0004 |
Insolubilization in hydroch loric acid,% ≤ |
0.010 |
0.020 |
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Zinc slice corrosion |
by test |
by test |
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by test |
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PH value |
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3-4 |
3-4 |
Package, storage and transportation:
Industrial solid zinc chloride be packed in a zinc -plate metal
pail lining with a polythylene plastic pouch ,or in a plastic
pail, a cardboard pail or a compound plastic braided bag lined
with a polyethylene plastic pouch. The net weight per pail or
bag is 50kg or 25kg.Industrial liguid zinc chloride should be
packed in a plastic pail or a steel tank car painted with anticorrosive
material (such as acid-resistant paint). On the package it should
be marked clearly "Corrosive products". Store in an
aeration -drying storehouse. Don't place in the open air. The
vessels must be sealed up, preserving it from damp air. It should
not be stored or transported with foods and feeds. During transportation
it should be covered and kept away from the sunshine and rain.
During loading and unloading it should be moved with great care,
avoiding breakage, the storage duration of model Ⅰand model
Ⅱ products which are packed in the zinc-plate metal pail, the
cardboard pail or the plastic pail is six months, while in the
compound plastic braided bag, two months. The storage duration
of model Ⅲ product is two months. All times are calculated from
the beginning of production.
In case of fire, it can be put out by water, sandy loam and
all types of fire extinguishers. |
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© 2001-2002
China Heqi Indurstry & Trade Co., Ltd. Chengjiang Fluorosilicate Filiale ALL RIGHTS RESERVED
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