Basic Info.
Product Description
Steel Grade N 20.5% Crystal Ammonium Sulphate, 7783-20-2
Brief introduction
Main active ingredients are 21% nitrogen and 24% sulfur, so it can be described as NPK 21-0-0 24S. Generally, it is a by-product from chemical (cyanuric acid, capro, acrylonitrile, sodium cyanide, monosodium glutamate - MSG, methyl methacrylate - MMA, etc.) or steel plant.
Specification
Other name (Synonym): ammonium sulfate, diammonium sulphate, sulfuric acid diammonium salt, sulfato de amonio
CAS No.: 7783-20-2
Molecular Formula: (NH4)2SO4
Molecular Weight: 132.13
Property: pH value of 0.1M solution is 5.5, Density is 1.769 g/cm3 (20 °C), hygroscopic, soluble in water insoluble in acetone, alcohol and ether.
| ITEM | SPECIFICATION | TEST RESULT | ||||||
| Purity | 98% min | 99.00% | ||||||
| Nitrogen | 20.5%min | 20.8% | ||||||
| Water | 0.3%max | 0.25% | ||||||
| Free Acid(H2SO4) | 0.05%max | 0.05% |
Appearance
Steel Grade (also call Coke-ovens Grade) is fine white powder, after processing it can be white granular or flake.
Caprolactam Grade is colorless (achromatic) crystalline or yellowish crystals.
Usage: In Agriculture
It is one of the most common use and most typical inorganic nitrogen fertilizer. It is the best fast release, quick acting fertilizer, can be directly used for a variety of soil and crops, can be used as kinds of seed fertilizers, base fertilizer and additional fertilizer. Particularly suitable for the soil which lack of sulfur, low chlorine tolerance crops, sulfur-philic crops, It is very popular in Japan, Southeast Asia, as well as northeast China where plant premium rice. Suitable for the rice seedling, the growth of tea, grass, vegetables, and fruit trees, effectually rapid promoting the growth of grain, vegetables, fruits, grass and other plants. It have more efficiency than urea, ammonium bicarbonate, ammonium chloride, ammonium nitrate. Large granular ammonium sulphate can also serve as raw material for compound fertilizer. As feed additives, it provide the nutrients of non-protein nitrogen to ruminants. It also used for fish culture in some areas.
Attention:
1 Try to not usd ammonium sulphate in paddy fields.
2 Ammonium sulphate are acidic fertilizers. It can increase the acidity of the soil, Therefore should pay attention to use in acidic soils with alkaline fertilizer, such as plant ash, phosphate rock powder or calcium magnesium phosphate and so on. Use in neutral and alkaline soil alkaline soils, in order to prevent calcium ion combined with sulfate ion to insoluble calcium sulfate (gypsum), caused by soil hardened, and should apply with organic fertilizer.
Usage: In Industrial
Ÿ In chemical industry, as the raw materials of hydrogen peroxide, ammonium alum and ammonium chloride; the minor ingredient of ammonium persulfate, lysine.
Ÿ In welding industry, as a welding agent.
Ÿ In textile industry, as a flame retardant.
Ÿ In electroplating industry, as a plating bath additive.
Ÿ In dyeing industry, as a dyeing auxiliaries of acid dyes.
Ÿ In leather industry, as a deliming agent.
Ÿ In food industry, as a dough conditioning agent (fermentation medium), a catalyst of sauce food.
Ÿ In pharmaceutical industry, as a salting-out agent, it can purifying proteins by precipitation
Ÿ In pesticide industry, as a adjuvant agent. Add in water soluble insecticides, herbicides, and fungicides, such as 2,4-D Amine Salt, glyphosate, and glufosinate herbicides.
Transportation & Storage:
Kept in dry and place, avoid moisture, water, rain and fire, normal transportation.
When ammonium sulphate in the transportation and outdoor storage, It should be keep Away from moisture, insolation, rain & high temperature. Should storage in flatness ground within a ventilating low-temperature dry warehouse. In order to prevent deterioration, In the same warehouse, strictly prohibit store nearby alkaline substances, such as lime, cement and plant ash. The stacking height should be less than 7 meters.