SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 15/NOV/2004
Date Updated: 15/APR/2004
Version 1.4
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 SULFIDE, 20% AQUEOUS SOLUTION
Product Number A1952
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
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
AMMONIUM SULFIDE SOLUTIONS (>=10 None None None
to <=25%)
Ingredient Name Percent CAS # EC no Annex I
AMMONIUM SULFIDE >= 10 12135-76-1 235-223-4 None
<= 25
Symbols: F C
R-Phrases: 11 31 34 50
Highly flammable. Contact with acids liberates toxic gas. Causes
burns. Very toxic to aquatic organisms.
WATER >= 75 7732-18-5 231-791-2 None
Formula H8N2S
Molecular Weight 68.14 AMU
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Flammable. Contact with acids liberates toxic gas. Causes burns.
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 immediately. Do not induce vomiting.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Water spray. Appropriate foam. Dry chemical powder.
Use water spray to cool fire-exposed containers.
Unsuitable: Do not use carbon dioxide extinguisher on this
material.
SPECIAL RISKS
Specific Hazard(s): Flammable liquid. Emits toxic fumes under
fire conditions.
Explosion Hazards: Vapor may travel considerable distance to
source of ignition and flash back. Container explosion may occur
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. Shut off all sources of ignition. Use nonsparking
tools.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Cover with dry-lime, sand, or soda ash. Place in covered
containers using non-sparking tools and transport outdoors.
Ventilate area and wash spill site after material pickup is
complete.
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. Keep away from heat,
sparks, and open flame. Store in a cool dry place.
Incompatible Materials: Avoid contact with acid.
SPECIAL REQUIREMENTS: Avoid contact with acid.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use nonsparking tools. Use only in a
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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).
9 - Physical and Chemical Properties
Appearance Physical State: Clear liquid
Color: Deep yellow-green
Odor: Stench.
Property Value At Temperature or Pressure
pH N/A
BP/BP Range N/A
MP/MP Range N/A
Flash Point 32.2 掳C Method: closed cup
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 4 %
Upper: 46 %
Vapor Pressure 450 mmHg 20 掳C
SG/Density 0.997 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 2.3 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: Strong oxidizing agents, Acids, Strong bases,
Aluminum, Zinc, Copper.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Sulfur oxides, Ammonia, Evolves
hydrogen sulfide which is poisonous.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
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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. Hydrogen sulfide is recognized by its characteristic
odor of "rotten eggs". The detectable, minimum perceptible odor
occurs at 0.13ppm. At concentrations of 20ppm hydrogen sulfide
begins acting as an irritant on the mucous membranes of the eyes
and respiratory tract and increases with concentration and
exposure time. The irritant action and odor of rotten eggs often
provides the first warning of hydrogen sulfide exposure.
Unfortunately, above 150ppm the gas exerts a paralyzing effect
on the olfactory apparatus. Prolonged exposure to moderate
concentrations (250ppm) may cause pulmonary edema. At
concentrations over 500ppm, drowsiness, dizziness, excitement,
headache, unstable gait, and other systemic symptoms occur
within a few minutes. Sudden loss of consciousness without
premonition, anxiety, or sense of struggle are characteristic of
acute exposure at concentrations above 700ppm. At concentrations
of 1000-2000ppm hydrogen sulfide is rapidly absorbed through the
lung into the blood. Initially hyperpnea occurs, followed by
rapid collapse and respiratory inhibition. At higher
concentrations, hydrogen sulfide
ROUTE OF EXPOSURE
Skin Contact: Causes burns.
Skin Absorption: Readily absorbed through skin. May be harmful
if absorbed through the skin.
Eye Contact: Causes burns.
Inhalation: Material is extremely destructive to the tissue of
the mucous membranes and upper respiratory tract. May be harmful
if inhaled.
Ingestion: May be harmful if swallowed.
12 - Ecological Information
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Burn in a chemical incinerator equipped with an
afterburner and scrubber but exert extra care in igniting as this
material is highly flammable. Observe all federal, state, and
local environmental regulations.
14 - Transport Information
RID/ADR
UN#: 2683
Class: 8
PG: II
Proper Shipping Name: Ammonium sulphide solution
IMDG
UN#: 2683
Class: 8
PG: II
Subrisk: 6.1/3
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Proper Shipping Name: AMMONIUM SULPHIDE, SOLUTION
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 2683
Class: 8
PG: II
Subrisk: 36.1
Proper Shipping Name: Ammonium sulphide solution
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: C
Corrosive.
R-PHRASES: 10 31 34
Flammable. Contact with acids liberates toxic gas. Causes burns.
S-PHRASES: 26 36/37/39 45
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).
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 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.,
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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