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AMMONIUM HYDROXIDE (10%-35% solution)
ICSC: 0215
Peer-Review Status: 17.03.1995 Validated
Aqua ammonia
Ammonium hydrate 
CAS #: 1336-21-6 RTECS #: BQ9625000
UN #: 2672
EC #: 007-001-01-2
EINECS #: 215-647-6
    Formula: NH4OH
Molecular mass: 35.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION See Notes.    In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Serious skin burns. Pain. Blisters.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain. Blurred vision. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal cramps. Abdominal pain. Sore throat. Vomiting. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Do NOT let this chemical enter the environment. Cautiously neutralize spilled liquid with with dilute acid such as dilute sulfuric acid. Wash away remainder with plenty of water.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container. 
EC Classification
Symbol: C, N; R: 34-50; S: (1/2)-26-36/37/39-45-61; Note: B 
UN Classification
UN Hazard Class: 8; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80S2672.
NFPA Code: H3; F1; R0. 
Separated from food and feedstuffs. See Chemical Dangers. Cool. Well closed. Keep in a well-ventilated room. See Notes. 

IMPORTANT DATA
Physical State; Appearance
VERY VOLATILE COLOURLESS AMMONIA SOLUTION IN WATER WITH PUNGENT ODOUR. 

Physical dangers
 

Chemical dangers
Reacts with many heavy metals and heavy metal salts. This produces explosive compounds. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001). The solution in water is a strong base. It reacts violently with acids. 

Occupational exposure limits
MAK: 20 ppm, 14 mg/m³; Peak limitation category: I(2); Pregnancy risk group: C; (DFG 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol or vapour and by ingestion. 

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of high concentrations the vapour may cause laryngeal oedema, inflammation of the respiratory tract and pneumonia. The effects may be delayed. 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation of of the vapour or aerosol may cause effects on the lungs. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 38°C (25%)
Melting point: -58°C (25%)
Relative density (water = 1): 0.9 (25%)
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 48 (25%)
Relative vapour density (air = 1): 0.6-1.2  
The substance is very toxic to aquatic organisms. 

NOTES
Ammonia vapour is flammable and explosive under certain conditions.
Be aware that ammonia gas can evolve from ammonia solution.
Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT completely fill bottles with the substance; strong solutions may develop pressure.
Release caps with care.
Other UN numbers are: UN 1005 Ammonia, anhydrous liquefied or ammonia solutions, relative density of less than 0.880 at 15°C in water, with more than 50% ammonia; UN 2073 Ammonia, 35-50%.
Also consult ICSC 0414 Ammonia.
Card has been partly updated in October 2004.
See sections Occupational Exposure Limits, EU classification, Emergency Response. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations