SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 06/DEC/2004
Date Updated: 13/MAR/2004
Version 1.2
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 BARIUM PEROXIDE
Product Number 11825
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
BARIUM PEROXIDE 1304-29-6 215-128-4 056-001-00-1
Formula BaO2
Molecular Weight 169.34 AMU
Synonyms Bario (perossido di) (Italian) * Barium binoxide
* Barium dioxide * Bariumperoxid (German) *
Bariumperoxyde (Dutch) * Barium superoxide *
Dioxyde de baryum (French) * Peroxyde de baryum
(French)
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Contact with combustible material may cause fire. Harmful by
inhalation and if swallowed.
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 EYE CONTACT
Assure adequate flushing of the eyes by separating the eyelids
with fingers.
5 - Fire Fighting Measures
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
Contact with other material may cause fire.
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
Absorb on sand or vermiculite and place in closed containers for
disposal.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe dust. Do not get in
eyes, on skin, on clothing. Avoid prolonged or repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from
combustible materials, heat, sparks, and open flame. Store in a
cool dry place.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse. Discard contaminated shoes.
EXPOSURE LIMITS - DENMARK
Source Type Value
OEL TWA 0.5 mg/m3
PERSONAL PROTECTIVE EQUIPMENT
Special Protective Measures: Wear appropriate government approved
respirator, chemical-resistant gloves, safety goggles, other
protective clothing.
9 - Physical and Chemical Properties
Appearance Color: Faintly brown
Form: Powder
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 N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
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Vapor Pressure N/A
SG/Density N/A
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
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
Materials to Avoid: Strong bases, Finely powdered metals.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Oxygen.
11 - Toxicological Information
RTECS NUMBER: CR0175000
ACUTE TOXICITY
LD50
Subcutaneous
Mouse
50 MG/KG
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. To the best of our knowledge, the chemical, physical,
and toxicological properties have not been thoroughly
investigated. Ingestion causes excessive salivation, vomiting,
colic, diarrhea, convulsive tremors, slow, hard pulse, and
elevated blood pressure. Hemorrhages may occur in the stomach,
intestines, and kidneys, followed by muscular paralysis.
ROUTE OF EXPOSURE
Multiple Routes: Harmful if swallowed, inhaled, or absorbed
through skin.
TARGET ORGAN INFORMATION
Heart. Nerves. Kidneys. G.I. System. Bone marrow. Spleen. Liver.
12 - Ecological Information
No data available.
13 - Disposal Considerations
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SUBSTANCE DISPOSAL
Cautiously acidify a 3% solution or a suspension of the material
to pH 2 with sulfuric acid. Gradually add a 50% excess of aqueous
sodium bisulfite with stirring at room temperature. An increase in
temperature indicates that a reaction is taking place. If no
reaction is observed on the addition of about 10% of the sodium
bisulfite solution initiate it by cautiously adding more acid. If
manganese, chromium, or molybdenum are present adjust the pH of
the solution to 7 and treat with sulfide to precipitate for burial
as hazardous waste. Destroy excess sulfide, neutralize, and flush
the solution down the drain. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
UN#: 1449
Class: 5.1
PG: II
Proper Shipping Name: Barium peroxide
IMDG
UN#: 1449
Class: 5.1
PG: II
Subrisk: 6.1
Proper Shipping Name: Barium peroxide
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 1449
Class: 5.1
PG: II
Subrisk: 6.1
Proper Shipping Name: Barium peroxide
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 056-001-00-1
INDICATION OF DANGER: O Xn
Oxidizing. Harmful.
R-PHRASES: 8 20/22
Contact with combustible material may cause fire. Harmful by
inhalation and if swallowed.
S-PHRASES: 13 27
Keep away from food, drink, and animal feedingstuffs. Take off
immediately all contaminated clothing.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 1
SWITZERLAND
SWISS POISON CLASS: 2
16 - Other Information
WARRANTY
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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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