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Ammonium sulfate

description Uses Toxicity
Ammonium sulfate
Ammonium sulfate
CAS No.
7783-20-2
Chemical Name:
Ammonium sulfate
Synonyms
Liase;dolamin;nsc77671;mascagnite;(NH4)2 SO4;actamaster;Wasfcaguite ;caswellno.048;Ammoniumsulfat;Coaltrol LPA-40
CBNumber:
CB9466357
Molecular Formula:
H8N2O4S
Formula Weight:
132.14
MOL File:
7783-20-2.mol

Ammonium sulfate Properties

Melting point:
280 °C
Density 
1.77 g/mL at 25 °C(lit.)
vapor pressure 
<1 Pa (25 °C)
refractive index 
n20/D 1.396
Flash point:
26 °C
storage temp. 
2-8°C
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Solid
color 
Yellow to orange
Specific Gravity
1.769
PH
5.0-6.0 (25℃, 1M in H2O)
Water Solubility 
77 g/100 mL (25 ºC)
λmax
λ: 260 nm Amax: ≤0.037
λ: 280 nm Amax: ≤0.030
Merck 
14,555
Stability:
Stable. Contact with strong oxidizers may cause fire or explosion. Incompatible with strong bases.
InChIKey
BFNBIHQBYMNNAN-UHFFFAOYSA-N
CAS DataBase Reference
7783-20-2(CAS DataBase Reference)
EPA Substance Registry System
Sulfuric acid diammonium salt(7783-20-2)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi,Xn
Risk Statements  10-36/37/38-22
Safety Statements  37/39-26-36-24/25
RIDADR  UN 1170 3/PG 3
WGK Germany  1
RTECS  BS4500000
TSCA  Yes
HS Code  31022100
Hazardous Substances Data 7783-20-2(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 2840 mg/kg
Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P273 Avoid release to the environment.

Ammonium sulfate price More Price(77)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 09978 Ammonium sulfate BioUltra, ≥99.0% (T) 7783-20-2 2.5kg $336 2018-11-13 Buy
Sigma-Aldrich 09978 Ammonium sulfate BioUltra, ≥99.0% (T) 7783-20-2 1kg $169 2018-11-13 Buy
Alfa Aesar 010639 Ammonium sulfate, Puratronic?, 99.999% (metals basis) 7783-20-2 10g $25.1 2018-11-16 Buy
Alfa Aesar 010639 Ammonium sulfate, Puratronic?, 99.999% (metals basis) 7783-20-2 50g $75.8 2018-11-16 Buy
Strem Chemicals 93-0225 Ammonium sulfate, 99+% (ACS) 7783-20-2 2kg $95 2018-11-13 Buy

Ammonium sulfate Chemical Properties,Uses,Production

description

Ammonium sulfate (AS) is the earliest production and use of nitrogen fertilizer. It is usually used as a standard nitrogen fertilizer, nitrogen content is between 20% to 30%. It is a very important fertilizer for any kind of soil that's high in pH and needs a little bit of sulfates to work against the high calcium or the high pH. The nice thing about the ammonium sulfate is that the nitrogen in it is a little bit slower releasing so it lasts throughout the growing season better than the nitrate forms of nitrogen.
In the 1960s, Ammonium sulfate is the main variety of nitrogen fertilizer, but also is a major source to provide crop nutrients sulfur. Firstly ammonia and sulfuric acid was neutralized to obtain, but later increasing proportion of by-product ammonium sulfate, and now Ammonium sulfate is actually produced as a by-product in many industrial processes including the manufacturing of steel, coking industry, caprolactam, sulfuric acid tail gas desulfurization, desulfurization of power plant, acrylonitrile and methyl methacrylate, zinc oxide and some polyester compounds.
Pure product of ammonium sulfate is white crystals, heated to 100 ℃ , began to be decomposed into ammonia and ammonium bisulfate, a by-product with a yellowish or gray, small moisture absorption, easy to agglomerate, it is easier to save and easily soluble in water, insoluble ethanol and acetone.
Ammonium sulfate serves as physiological acidic nitrogen fertilizer, is generally more suitable for wheat, corn, rice, cotton, potato, hemp, fruit trees, vegetables and other crops. For soils, the ammonium sulfate is most suitable for neutral soil and alkaline soil, but not suitable for acidic soil. Also used as analytical reagents (precipitating agent, masking agent), in electrochemical analysis, supports electrolyte, microbiological culture media and preparation of ammonium salts.
The above information is edited by the Chemicalbook of Liu Yujie.

Uses

  1. Ammonium sulfate is a typical Nitrogen-based, water-soluble, and fast acting fertilizer, for various soil and crop. It is used largely as an artificial fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil , while contributing essential nitrogen for plant growth.
  2. For the analysis reagents, also for protein precipitation.
  3. Used as flux, fire retardant in textile fabric industry, as the salting-out agent, osmotic pressure regulating agents in medicine.
  4. Used as raw materials of hydrogen peroxide , ammonium chloride, ammonium alum and production in chemical industry, as a flux in the welding industry.
  5. Used as plating bath additives in electroplating industry.
  6. Used as dough modifier, yeast nutrients in food grade product.
  7. Ammonium sulfate is also used as an agricultural spray adjuvant for water soluble insecticides, herbicides, and fungicides. There it functions to bind iron and calcium cations that are present in both well water and plant cells.

Toxicity

ADI does not make special provision (FAO/WHO, 2001).
GRAS (FDA, §184.1143,2000).
LD50 3g/kg (rat, oral).

Chemical Properties

White crystalline powder

Uses

May be used for the precipitation or fractionation of proteins or for purification of antibodies. Useful for crystallographic analysis of nucleic acids and proteins.

Uses

Ammonium Sulfate is a dough conditioner, firming agent, and pro- cessing aid which is readily soluble in water with a solubility of approximately 70 g in 100 g of water at 0°c. the ph of a 0.1 molar solution in water is approximately 5.5. it is used in caramel produc- tion and as a source of nitrogen for yeast fermentation. in bakery products, up to 0.25 part per 100 parts by weight of flour is used.

Uses

manufacture of ammonia alum; in the manufacture of H2SO4 to free it from nitrogen oxides; analytical uses; freezing mixtures, flameproofing fabrics and paper; manufacture of viscose silk; tanning, galvanizing iron; in fractionation of proteins. The commercial grade is used as fertilizer.

General Description

White odorless solid. Sinks and dissolves in water.

Air & Water Reactions

Dissolves in water with evolution of some heat.

Reactivity Profile

Ammonium sulfate is acidic in aqueous solution. When a little Ammonium sulfate is added to fused potassium nitrite, a vigorous reaction occurs attended by flame [Mellor 2:702 1946-47].

Agricultural Uses

Ammonium sulphate, (NH4)2SO4, a water-soluble crystalline salt is a nitrogenous fertilizer containing about 2 1 % nitrogen and 24 % sulphur. It occurs naturally as the mineral mascagnite and offers many advantages as a fertilizer, such as low hygroscopicity, good physical properties, excellent chemical stability, good agronomic effectiveness and long shelf life.
Ammoniacal nitrogen is fned in the soil in an exchangeable form until nitrated by nitrifying bacteria. The ammoniacal nitrogen of ammonium sulphate does not leach out easily. Ammonium sulphate is an acid forming fertilizer, and hence used in neutral or alkaline soils. In its free flowing form, it is directly applied to the soil or blended with other granular materials. Ammonium sulphate also supplies sulphur, which is an essential nutrient for plants.
Ammonium sulphate is a quick-acting fertilizer. It is resistant to leaching as it gets adsorbed on the soil colloids, clay and humus, and replaces calcium. This adsorbed ammonium salt is converted to nitrate by nitrifying bacteria for use by growing plants. Ammonium sulphate is produced in different ways, The major ones are: (i) Production from synthesized ammonia and sulphuric acid.
(ii) Production of ammonium sulphate fertilizer by the gypsum process is widely used in many developing countries. In this process, ammonia is used along with pulverized calcium sulphate, carbon dioxide and water. Here ammonia made from nitrogen and hydrogen, reacts with carbon dioxide gas to produce ammonium carbonate. Ground gypsum reacts with ammonium carbonate solution to form ammonium sulphate and calcium carbonate.
Ammonium sulphate is commonly transported in polythene or paper bags. It is adsorbed on soil colloids, clay and humus, replacing calcium. It is more beneficial than nitrate fertilizers at planting time. This adsorbed portion is slowly released and in about a month most of the ammonium sulphate is converted into the nitrate form, which is used by growing plants.
Since rice crops absorb nitrogen even in the ammoniacal form, ammonium sulphate fertilizer is used as a source of nitrogen for rice in the USA and Southeast Asia. In the USA, ammonium sulphate is also used for potato scab control.
The main disadvantages of ammonium sulphate are its acid forming nature, low nitrogen percentage (21%) and high costs for packaging, storage and transportation.

Safety Profile

Moderately toxic by several routes. Human systemic effects by ingestion: hypermotility, diarrhea, nausea or vomiting. See also SULFATES. Incandescent reaction on heating with potassium chlorate. Reaction with sodmm hypochlorite gves the unstable explosive nitrogen trichloride. Incompatible with (K + NH4NO3), KNO2, (NaK + NH4NO3). When heated to decomposition it emits very toxic fumes of NOx, NH3, and SOx.

Purification Methods

Crystallise it twice from hot water containing 0.2% EDTA to remove metal ions, then finally from distilled water. Dry it in a desiccator for 2 weeks over Mg(ClO4)2. After 3 recrystallisations, ACS grade had Ti, K, Fe, Na at 11, 4.4, 4.4, 3.2 ppm respectively.

Ammonium sulfate Preparation Products And Raw materials

Raw materials

Preparation Products


Ammonium sulfate Suppliers

Global( 376)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 sales3257@jskolod.com CHINA 100 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20786 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 1659 55
Haihang Industry Co.,Ltd
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+86 531 8582 1093 marketing@haihangchem.com CHINA 4535 58
career henan chemical co
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Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
86-21-63290778 86-21-63218885 sj_scrc@sinopharm.com China 9966 79
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 sale@aladdin-e.com China 25106 65
Jiangsu Kolod Food Ingredients Co.,Ltd. 18861332158
+86-518-85115307 sales2158@jskolod.com China 76 58

View Lastest Price from Ammonium sulfate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-03-01 Ammonium sulfate
7783-20-2
US $0.00 / kg 25kg 99% 1000 Hefei TNJ Chemical Industry Co.,Ltd.
2018-12-17 Ammonium sulfate
7783-20-2
US $7.00 / kg 1kg 99% 100kg career henan chemical co
2017-08-31 Food Grade Electronic Grade Reagent Grade Ammonium Sulfate
7783-20-2
US $5.00 / KG 25KG 99.0%--100.5% 2000 tons Jiangsu Kolod Food Ingredients Co.,Ltd.

Ammonium sulfate Spectrum


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