ChemicalBook >>Ammonia>>Ammonia(7664-41-7)


Product IdentificationBack to Contents
【Product Name】


IMO Gas Code


【Molecular Weight】



【RTECS Class】

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Human Data


79 (G)
【EC Index Number】

【EC Class】

Flammable; Toxic; Corrosive; Dangerous for the Environment
Physical and Chemical PropertiesBack to Contents

Colorless gas with a pungent odor.
【Solubility in water】

54 g/100 mL
【Melting Point】

【Boiling Point】

【Vapor Pressure】

7510 (25 C)

0.77 g/cm3

4.75 (pKb)
【Heat Of Vaporization】

23.3 kJ/mol
【Heat Of Combustion】

-316 kJ/mol

Manufacture nitric acid, explosives, synthetic fibers, fertilizers, in refrigeration & chemical industry.
【Odor threshold】

0.0266 mg/m3
【Refractive Index】

First Aid MeasuresBack to Contents

Seek medical assistance.

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Effects may be delayed.

Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.

In case of contact with liquefied gas, thaw frosted parts with lukewarm water Immediately flush skin with running water for at least 20 minutes.
Handling and StorageBack to Contents

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Hazards IdentificationBack to Contents

Vapors are extremely irritating and corrosive.

Concentrated ammonia may produce liquifaction necrosis and deep penetrating burns.

A small quantity in the eye will cause permanent damage. Also frostbite. Vapor causes a burning sensation and irritation. Cold vapor may cause frostbite

Nausea and vomiting occur frequently following ingestion. Swelling of the lips, mouth, and larynx, and oral or esophageal burns may occur if concentrated ammonia solutions are ingested.

Mixing of ammonia with several chemicals can cause severe fire hazards and/or explosions. Ammonia in container may explode in heat of fire. Incompatible with many materials including silver and gold salts, halogens, alkali metals, nitrogen trichloride, potassium chlorate, chromyl chloride, oxygen halides, acid vapors, azides, ethylene oxide, picric acid and many other chemicals. Mixing with other chemicals and water. Hazardous polymerization may not occur.
【UN (DOT)】

Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Wear appropriate protective gloves, clothing and goggles.

Wear positive pressure self-contained breathing apparatus (SCBA).
【Exposure Effects】

Increases in blood pressure and pulse have been reported. An altered mental status (coma) may be seen, but is not characteristic unless hypoxemia occurs. Seizures may occur with extensive absorption. Decreased egg production has occurred in experimental animals. Ammonia crosses the ovine placental barrier. <br>No information about possible male reproductive effects was found in available references.
【Exposure limit(s)】

OSHA PEL: TWA 50 ppm (35 mg/m3) NIOSH REL: TWA 25 ppm (18 mg/m3) ST 35 ppm (27 mg/m3) NIOSH IDLH: 300 ppm
【Poison Class】

Fire Fighting MeasuresBack to Contents
【Flash Point】


【Fire Fighting】

Wear positive pressure breathing apparatus and full protective clothing.Small fires: dry chemical or carbon dioxide. Large fires: water spray, fog or foam. Apply water gently to the surface. Do not get water inside container. Move container from fire area if you can do it without risk. Stay away from ends of tanks. Cool containers that are exposed to flames with water from the side until well after fire is out. Isolate area until gas has dispersed.
【Upper exp. limit】

【Lower exp. limit】

【Fire Potential】

Slightly flammable. Will burn at high concentration. At 1290 fahrenheit or in presence of electric spark decomposes into n and h. Forms flammable mixtures with air. Presence of combustibles increases hazard.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Vapor knockdown water is corrosive or toxic and should be diked for containment. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash or cement powder. Neutralize with vinegar or other dilute acid. Water spill: Neutralize with dilute acid. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability and ReactivityBack to Contents

Reacts violently or produces explosive products with fluorine, chlorine, bromine and iodine and bromine pentafluoride and chlorine trifluoride May react violently with boron halides, ethylene oxide (polymerization), perchlorates and strong oxidizing agents (chromyl chloride, chromium trioxide, chromic acid, nitric acid, hydrogen peroxide, chlorates, fluorine, nitrogen oxide, liquid oxygen).

Stable. Reactive only under extreme conditions. Reacts vigorously with oxidizing materials..

Shock-sensitive compounds are formed with mercury, silver and gold oxides.
Transport InformationBack to Contents
【UN Number】

【Hazard Class】

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