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Ammonium sulfate

description Uses Toxicity
Ammonium sulfate
Ammonium sulfate
Chemical Name:
Ammonium sulfate
Liase;dolamin;nsc77671;mascagnite;actamaster;(NH4)2 SO4;Wasfcaguite ;caswellno.048;Ammoniumsulfat;Coaltrol LPA-40
Molecular Formula:
Formula Weight:
MOL File:

Ammonium sulfate Properties

Melting point:
280 °C
1.77 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.396
Flash point:
26 °C
storage temp. 
H2O: 1 M at 20 °C, clear, colorless
Yellow to orange
5.0-6.0 (25℃, 1M in H2O)
Water Solubility 
77 g/100 mL (25 ºC)
Stable. Contact with strong oxidizers may cause fire or explosion. Incompatible with strong bases.
CAS DataBase Reference
7783-20-2(CAS DataBase Reference)
EPA Substance Registry System
Sulfuric acid diammonium salt(7783-20-2)
  • 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
HS Code  31022100
Hazardous Substances Data 7783-20-2(Hazardous Substances Data)
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(75)

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


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.


  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.


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

Chemical Properties

White crystalline powder


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


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].

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( 366)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 CHINA 92 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22119 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20795 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 1465 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038 CHINA 3625 58
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
86-21-63290778 86-21-63218885 China 9975 79
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 China 25126 65
Jiangsu Kolod Food Ingredients Co.,Ltd. 18861332158
+86-518-85115307 China 75 58
Xuzhou Sunyu Chemical Technology Co., Ltd. 15252025753
0516-82282337 China 21 58
Weifang Kaihong Chemical Limited 86-536-8865335,13953637678
86-536-5310398 China 64 55

View Lastest Price from Ammonium sulfate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2017-08-31 Food Grade Electronic Grade Reagent Grade Ammonium Sulfate
US $5.00 / KG 25KG 99.0%--100.5% 2000 tons Jiangsu Kolod Food Ingredients Co.,Ltd

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