AMMONIUM HYDROXIDE (10%-35% solution) (ICSC)

AMMONIUM HYDROXIDE (10%-35% solution)	ICSC: 0215

Date of Peer Review: March 1995

Aqua ammonia
Ammonium hydrate

CAS #

1336-21-6

NH₄OH

RTECS #

BQ9625000

Molecular mass: 35.1

UN #

2672

EC #

007-001-01-2

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.	Ventilation, local exhaust, or breathing protection. Keep containers properly closed.	Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
Skin	Corrosive. 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	Corrosive. Redness. Pain. Blurred vision. Severe deep burns.	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 take to a doctor.
Ingestion	Corrosive. 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 plenty of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Evacuate danger area! Consult an expert in case of a large spillage! Ventilation. Cautiously neutralize spilled liquid with a dilute acid, such as dilute sulfuric acid. Wash away remainder with plenty of water. Do NOT let this chemical enter the environment. Personal protection: complete protective clothing including self-contained breathing apparatus.

Unbreakable packaging; put breakable packaging into closed unbreakable container.
EU 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

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 (further see Notes).

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities Š IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK

AMMONIUM HYDROXIDE (10%-35% solution)

ICSC: 0215

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
VERY VOLATILE, COLOURLESS SOLUTION OF AMMONIA IN WATER, WITH PUNGENT ODOUR.

CHEMICAL DANGERS:
Reacts with many heavy metals and their salts forming explosive compounds. Attacks many metals forming flammable/explosive gas (hydrogen - see ICSC 0001). The solution in water is a strong base, it reacts violently with acids.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as NH_3) 25 ppm as TWA; 40 ppm as STEL; (ACGIH 2004).
MAK: 20 ppm, 14 mg/mł; 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 vapour or aerosol 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, the skin and the respiratory tract. Corrosive on ingestion as well. Inhalation of high concentrations of vapour may cause laryngeal oedema, inflamation of the respiratory tract, and pneumonia. The effects may be delayed.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Lungs may be affected by repeated or prolonged exposure to the vapour or aerosol.

PHYSICAL PROPERTIES

Boiling point: (25%) 38°C
Melting point: (25%) -58°C
Relative density (water = 1): (25%) 0.9
Solubility in water: miscible
Vapour pressure, kPa at 20°C: (25%) 48
Relative vapour density (air = 1): 0.6-1.2

ENVIRONMENTAL DATA

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

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

Š IPCS, CEC 2004

    See Also:
       Toxicological Abbreviations