SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 31/JUL/2005
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 DIPHENYL DISELENIDE, 98%
Product Number 180629
Company Sigma-Aldrich Pty. Ltd.
12 Anella Avenue
Castle Hill NSW 2154
Australia
Technical Phone # +61 2 9841 0555 (1800 800 097)
Fax +61 2 9841 0500 (1800 800 096)
Emergency Phone # +44 8701906777 (1800 448 465)
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
DIPHENYL DISELENIDE 1666-13-3 216-780-2 034-002-00-8
Formula C12H10Se2
Molecular Weight 312.13 AMU
Synonyms Bis(phenylselenide) * Phenyl diselenide
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Toxic by inhalation and if swallowed. Danger of cumulative
effects. Very toxic to aquatic organisms, may cause long-term
adverse effects in the aquatic environment.
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 INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Water spray. 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
Sweep up, place in a bag and hold for waste disposal. Avoid
raising dust. Ventilate area and wash spill site after material
pickup is complete.
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. 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. Discard contaminated clothing and
shoes.
EXPOSURE LIMITS - UNITED KINGDOM
Source Type Value
OEL TWA 0.1MG(SE)/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: Deep yellow
Form: Powder
Property Value At Temperature or Pressure
pH N/A
BP/BP Range N/A
MP/MP Range 59 掳C
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: Oxidizing agents, Halogens, Reducing agents.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Selenium/selenium oxides.
11 - Toxicological Information
RTECS NUMBER: JM9152500
ACUTE TOXICITY
LD50
Intravenous
Mouse
28 MG/KG
SIGNS AND SYMPTOMS OF EXPOSURE
Exposure can cause: Damage to the liver. Damage to the lungs.
ROUTE OF EXPOSURE
Multiple Routes: May be fatal if inhaled, swallowed, or absorbed
through skin. May cause irritation.
TARGET ORGAN INFORMATION
Damage to the liver. Damage to the lungs. Liver.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Oxidize the compound with nitric acid. Boil to remove oxides of
nitrogen. Add hydrochloric acid to a concentration of 2-4%. Cool.
Add excess sodium sulfite slowly, precipitating the element. Let
mixture stand overnight. Boil to coagulate the precipitate, then
filter and wash. Dispose of filtrate and precipitate in a
hazardous landfill site. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
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RID/ADR
UN#: 3283
Class: 6.1
PG: II
Proper Shipping Name: Selenium compound, n.o.s.
IMDG
UN#: 3283
Class: 6.1
PG: II
Proper Shipping Name: Selenium compound, n.o.s.
Marine Pollutant: No
Severe Marine Pollutant: No
Technical Name: Required
IATA
UN#: 3283
Class: 6.1
PG: II
Proper Shipping Name: Selenium compound, n.o.s.
Inhalation Packing Group I: No
Technical Name: Required
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 034-002-00-8
NOTA: A
INDICATION OF DANGER: T N
Toxic. Dangerous for the environment.
R-PHRASES: 23/25 33 50/53
Toxic by inhalation and if swallowed. Danger of cumulative
effects. Very toxic to aquatic organisms, may cause long-term
adverse effects in the aquatic environment.
S-PHRASES: 20/21 28 45 60 61
When using do not eat, drink, or smoke. After contact with
skin, wash immediately with plenty of soap-suds. In case of
accident or if you feel unwell, seek medical advice immediately
(show the label where possible). This material and its
container must be disposed of as hazardous waste. Avoid release
to the environment. Refer to special instructions/safety data
sheets.
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 2005 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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