SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 10/NOV/2004
Date Updated: 07/JUN/2004
Version 1.7
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name AMMONIUM HYDROXIDE SOLUTION, <)>25% IN W
Product Number 40309
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
AMMONIA HYDROXIDE SOLUTION >= 25% 1336-21-6 215-647-6 007-001-01-2
Ingredient Name Percent CAS # EC no Annex I
Index Number
WATER >= 70 7732-18-5 231-791-2 None
<= 75
AMMONIUM HYDROXIDE >= 25 1336-21-6 215-647-6 007-001-01-2
<= 30
Symbols: C N
R-Phrases: 34 50
Causes burns. Very toxic to aquatic organisms.
Formula NH4OH
Molecular Weight 35.05 AMU
Synonyms Ammonia aqueous * Ammonia water 29% * Aqua
ammonia
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Causes burns. Very toxic to aquatic organisms.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER SKIN CONTACT
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
AFTER EYE CONTACT
In case of contact with eyes, flush with copious amounts of
water for at least 15 minutes. Assure adequate flushing by
separating the eyelids with fingers. Call a physician.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician. Do not induce vomiting.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
To adjust the pH, add a weak acid to the spilled material at a
controlled rate to avoid excessive ammonia liberation. To
collect spilled material, use an absorbent.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe vapor. Do not get
in eyes, on skin, on clothing. Avoid prolonged or repeated
exposure.
STORAGE
Conditions of Storage: Keep tightly closed.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use only in a chemical fume hood.
GENERAL HYGIENE MEASURES
Wash contaminated clothing before reuse. Discard contaminated
shoes. Wash thoroughly after handling.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
Special Protective Measures: Faceshield (8-inch minimum).
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9 - Physical and Chemical Properties
Appearance Physical State: Clear liquid
Color: Colorless
Property Value At Temperature or Pressure
pH N/A
BP/BP Range N/A
MP/MP Range N/A
Flash Point N/A
Flammability N/A
Autoignition Temp 651 藲C
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 16 %
Upper: 27 %
Vapor Pressure 115 mmHg 20 藲C
SG/Density 0.99 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 1.2 g/l
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Materials to Avoid: Copper, Copper alloys, Galvanized iron, Zinc.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Nitrogen oxides, Ammonia.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: BQ9625000
ACUTE TOXICITY
LDLO
Oral
Human
43 mg/kg
LCLO
Inhalation
Human
5,000 ppm
LD50
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Oral
Rat
350 mg/kg
Remarks: Gastrointestinal:Other changes. Liver:Other changes.
Kidney, Ureter, Bladder:Other changes.
LD50
Intravenous
Mouse
91 MG/KG
Remarks: Behavioral:Convulsions or effect on seizure threshold.
Behavioral:Coma. Lungs, Thorax, or Respiration:Respiratory
stimulation.
IRRITATION DATA
Eyes
Rabbit
0.25 mg
Remarks: Severe irritation effect
Eyes
Rabbit
0.044 mg
Remarks: Severe irritation effect
Eyes
Rabbit
1 mg
30S
Remarks: Rinsed
SIGNS AND SYMPTOMS OF EXPOSURE
Material is extremely destructive to tissue of the mucous
membranes and upper respiratory tract, eyes, and skin.
Inhalation may result in spasm, inflammation and edema of the
larynxand bronchi, chemical pneumonitis, and pulmonary edema.
Symptoms of exposure may include burning sensation, coughing,
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting.
ROUTE OF EXPOSURE
Skin Contact: Causes burns.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes burns. Lachrymator.
Inhalation: May be harmful if inhaled. Material is extremely
destructive to the tissue of the mucous membranes and upper
respiratory tract.
Ingestion: Harmful if swallowed.
12 - Ecological Information
ECOTOXICOLOGICAL EFFECTS
Test Type: LC50 Fish
Time: 96 h
Value: < 1 mg/l
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
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of this material. Dissolve or mix the material with a combustible
solvent and burn in a chemical incinerator equipped with an
afterburner and scrubber. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
UN#: 2672
Class: 8
PG: III
Proper Shipping Name: Ammonia solution
IMDG
UN#: 2672
Class: 8
PG: III
Proper Shipping Name: Ammonia solution
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 2672
Class: 8
PG: III
Proper Shipping Name: Ammonia solution
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 007-001-01-2
NOTA: B
INDICATION OF DANGER: C N
Corrosive. Dangerous for the environment.
R-PHRASES: 34 50
Causes burns. Very toxic to aquatic organisms.
S-PHRASES: 26 36/37/39 45 61
In case of contact with eyes, rinse immediately with plenty of
water and seek medical advice. Wear suitable protective
clothing, gloves, and eye/face protection. In case of accident
or if you feel unwell, seek medical advice immediately (show
the label where possible). Avoid release to the environment.
Refer to special instructions/safety data sheets.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 2
SWITZERLAND
SWISS POISON CLASS: 2
16 - Other Information
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
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shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2004 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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