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HomeProduct name listAmmonium sulfamate

Ammonium sulfamate

Synonym(s):Amidosulfonic acid ammonium salt, Ammonium sulfamate, Sulfamic acid ammonium salt;Ammonium amidosulfonate

  • CAS NO.:7773-06-0
  • Empirical Formula: H6N2O3S
  • Molecular Weight: 114.12
  • MDL number: MFCD00011429
  • EINECS: 231-871-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-21 22:41:43
Ammonium sulfamate Structural

What is Ammonium sulfamate?

Description

Ammonium sulfamate (or ammonium sulphamate) is a white crystalline solid, readily soluble in water. It is a salt formed from ammonia and sulfamic acid. Based on its good performance, it is widely used in industrial production and scientific research. Ammonium sulfamate is used as a herbicide, a composting accelerator in horticultural settings, a flame retardant, and so on.

Chemical properties

Ammonium sulfamate is a white to yellow crystalline solid.

The Uses of Ammonium sulfamate

Ammonium sulfamate (AMS) is an inorganic herbicide used for control of woody plants and herbaceous perennials.

What are the applications of Application

Ammonium sulfamate could be widely used in pesticides, printing and dyeing, tobacco, building materials, textiles, and other industries. It could used as an analytical reagent. It could also used in the manufacture of fire-retardant compositions, for flameproofing textiles and paper products, and in the manufacture of weed-killing compositions. It is also used in electroplating solutions and could used for the generation of nitrous oxide gas.

What are the applications of Application

Ammonium Sulfamate is a weakly oxidizing agent employed as a broad-spectrum herbicide

Definition

ChEBI: Ammonium sulfamate is an organic molecular entity.

Preparation

Ammonium sulfamate is prepared continuously, starting from ammonia and sulfur trioxide, in which liquid sulfur trioxide and liquid ammonia are introduced in a molar ratio NH3 /SO3 greater than 2.0:1 into a pressure reactor containing the reaction product in the molten state, excess ammonia being removed continuously from the reactor and the liquid sulfur trioxide being introduced into the melt.

General Description

Ammonium sulfamate is a white crystalline solid. Ammonium sulfamate is soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Ammonium sulfamate is used to flameproof fabrics and papers, in weed or brush killing products, and for other uses.

Air & Water Reactions

Water soluble. Hot water [Note: Elevated temperatures cause a highly exothermic reaction with water (in the presence of acid)] .

Reactivity Profile

Ammonium sulfamate is incompatible with the following: Acids, hot water [Note: Elevated temperatures cause a highly exothermic reaction with water (in the presence of acid).] .

Hazard

Hot acid solutions when enclosed may explode.

Health Hazard

Inhalation causes irritation of nose and throat. Ingestion causes gastrointestinal disturbances. Dust irritates eyes.

Fire Hazard

Special Hazards of Combustion Products: Toxic oxides of nitrogen may form in fires.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. Somewhat explosive when heated or by spontaneous chemical reaction in a hot acid solution. A powerful oxidizer. When heated to decomposition it emits very toxic fumes of NH3, NOx, and SOx. See also SULFONATES and SULFAMIC ACID.

Potential Exposure

Ammonium sulfamate is used as a herbicide and in compositions for retarding flame in textiles and paper products; a softener for paper, cotton textiles.

Carcinogenicity

The oral LD50 values were 3900 mg/kg for rats and 5760 mg/kg for mice.

Shipping

UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Purification Methods

Crystallise it from water at room temperature (1mL/g) by adding EtOH and cooling. [Sisler & Audrieth Inorg Synth II 180 1946.]

Incompatibilities

Strong oxidizers, potassium, potassium chlorate, sodium nitrite, metal chlorates, and hot acid solutions. Elevated temperatures cause a highly exothermic reaction with water.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Dilute with water, make neutral with acid or base and flush into sewer with more water.

Properties of Ammonium sulfamate

Melting point: 131-135 °C (lit.)
Boiling point: 160°C
Density  1.769
vapor pressure  0Pa at 20℃
Flash point: 160°C
storage temp.  no restrictions.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Crystalline Powder
color  White
Odor Slight amine odor
PH 5.0-6.0 (50g/l, H2O, 20℃)
PH Range 4.5 - 6.0
Water Solubility  1950 g/L (20 ºC)
Sensitive  Air & Moisture Sensitive
Merck  14,554
Exposure limits ACGIH: TWA 10 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: IDLH 1500 mg/m3; TWA 10 mg/m3; TWA 5 mg/m3
Stability: Stable. Incompatible with strong acids, strong oxidizing agents.
CAS DataBase Reference 7773-06-0(CAS DataBase Reference)
NIST Chemistry Reference Ammonium sulfamate(7773-06-0)
EPA Substance Registry System Ammonium sulfamate (7773-06-0)

Safety information for Ammonium sulfamate

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Environment
GHS09
GHS Hazard Statements H302:Acute toxicity,oral
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H336:Specific target organ toxicity,single exposure; Narcotic effects
H400:Hazardous to the aquatic environment, acute hazard
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P270:Do not eat, drink or smoke when using this product.
P271:Use only outdoors or in a well-ventilated area.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P330:Rinse mouth.
P405:Store locked up.
P403+P233:Store in a well-ventilated place. Keep container tightly closed.
P501:Dispose of contents/container to..…

Computed Descriptors for Ammonium sulfamate

InChIKey GEHMBYLTCISYNY-UHFFFAOYSA-N

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