Name: Ammonium Sulfate Granular
Properties：Chemical compound, a colorless-to-gray, rhombohedra crystalline substance that occurs in nature as the mineral mascagnite. Soluble in water and insoluble in alcohol or liquid ammonia.
Apperance: White or light yellow microcrystalline granular material
Molecular formula:(NH4)2SO4
Physical and Chemical Properties
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Appearance and properties: pure product is colorless orthorhombic crystal, industrial product is white to light yellow crystal |
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Molecular formula： (NH4)2SO4 |
Molecular weight:：132.13 |
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pH value: |
Melting point(℃)：140 |
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Relative density (water = 1)：1.77 |
Boiling point(℃)： |
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Relative vapor density (air=1): |
Octanol/water partition coefficient: |
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Flash point(℃)： |
Ignition temperature(℃)： |
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Upper explosion limit [% (V/V)]: |
Lower explosion limit [% (V/V)]: |
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Heat of combustion (kJ/mol): |
Critical temperature(℃)： |
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Critical pressure(MPa)： |
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Solubility: |
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Main uses: used to make fertilizers, ammonium hydroxide, battery filling, fireproof compounds, etc. |
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Applications:
1. As an excellent nitrogen fertilizer (commonly known as fertilizing field powder), Ammonium Sulfate Granular is suitable for general soil and crops,it can make branches and leaves grow vigorous, improve fruit quality and yield, enhance crop resistance to disasters. It can be used as base fertilizer, topdressing and seed fertilizer.
2. Ammonium Sulfate Granular can react with salt to produce ammonium chloride, react with aluminum sulfate to produce ammonium alum, and make refractory materials with boric acid.
3. Addition to the plating solution can increase conductivity. It is also the catalyst of food sauce color, the nitrogen source of yeast cultivation in the production of fresh yeast, the acid dye dye aid, and the leather deash agent.
4. In addition, it is also used in beer brewing, chemical reagents and battery production.
5. Another important role is the mining of rare earth, mining with ammonium sulfate as raw material, using the form of ion exchange to exchange the rare earth elements in the mine soil, and then collect the leaching liquid to remove impurities, precipitation, pressing, burning, then into rare earth ore, each mining production of 1 ton of rare earth ore needs about 5 tons of ammonium sulfate.
6. There are also many biological uses, mostly used in protein purification process, because ammonium sulfate is an inert substance, not easy to react with other bioactive substances, in the purification process can maximize the protection of protein activity,
7. In addition, ammonium sulfate excellent solubility, can form a high-salt environment, for protein precipitation and subsequent high-salt purification preparation. There is a big difference between the solubility of ammonium sulfate at 0 ° C and room temperature 25 ° C. The following is the molar concentration of ammonium sulfate at two temperatures with different saturation.
Specification:
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Specification |
Units |
Superior product |
First class |
Qualified product |
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Nitrogen content |
% ≥ |
21 |
21 |
20.5 |
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Sulfur(as S) |
% ≥ |
23 |
21 |
23 |
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Moisture |
%≤ |
0.2 |
0.3 |
1 |
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Free sulfuric acid (H2SO4) |
%≤ |
0.03 |
0.05 |
0.2 |
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Fe |
%≤ |
0.007 |
– |
– |
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As |
%≤ |
000005 |
– |
– |
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Heavy metal |
%≤ |
0.005 |
– |
– |
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Water-insoluble matters |
%≤ |
0.01 |
– |
– |
Package:25/50/1000/1250kg plastic woven bag or paper bag with PE inner bag. or according to the requirements of customers.
Storage:
Stored in a cool, ventilated warehouse. Keep away from fire and heat sources. Acids and bases must be stored separately. Storage areas should be equipped with suitable spillage materials.
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