SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 31/JUL/2005
Date Updated: 12/MAR/2004
Version 1.1
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 DIMETHYL ACETYLENEDICARBOXYLATE, 99%
Product Number D138401
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
DIMETHYL ACETYLENEDICARBOXYLATE 762-42-5 212-098-4 None
Formula C6H6O4
Molecular Weight 142.11 AMU
Synonyms Acetylenedicarboxylic acid, dimethyl ester *
1,2-Bis(methoxycarbonyl)ethyne *
Di(carbomethoxy)acetylene * Dimethyl
acetylenedicarboxylic acid * Dimethyl
ethynedicarboxylate * Methyl
acetylenedicarboxylate
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
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 contact, immediately wash skin with soap and copious
amounts of water.
AFTER EYE CONTACT
In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.
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 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. Ventilate area and wash spill site after material
pickup is complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Avoid contact and inhalation. Do
not get in eyes, on skin, on clothing.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from heat
and open flame. Store in a cool dry place.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Mechanical exhaust required.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Rubber gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Color: Faintly yellow
Form: Clear liquid
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 110 - 112 掳C 15 mmHg
MP/MP Range N/A
Flash Point 86 掳C Method: closed cup
Flammability N/A
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Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density 1.157 g/cm3
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 oxidizing agents, Strong acids, Strong
bases, Strong reducing agents.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.
11 - Toxicological Information
RTECS NUMBER: ES0175000
ACUTE TOXICITY
LD50
Oral
Mouse
550 mg/kg
Remarks: Behavioral:Somnolence (general depressed activity).
Behavioral:Ataxia. Behavioral:Coma.
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. Exposure can cause: Nausea, headache, and vomiting.
Cyanosis. Convulsions. To the best of our knowledge, the
chemical, physical, and toxicological properties have not been
thoroughly investigated.
ROUTE OF EXPOSURE
Multiple Routes: Harmful if swallowed, inhaled, or absorbed
through skin.
12 - Ecological Information
No data available.
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13 - Disposal Considerations
SUBSTANCE DISPOSAL
This combustible material may be burned in a chemical incinerator
equipped with an afterburner and scrubber. Observe all federal,
state, and local environmental regulations.
14 - Transport Information
RID/ADR
UN#: 3265
Class: 8
PG: II
Proper Shipping Name: Corrosive liquid, acidic,
organic, n.o.s.
IMDG
UN#: 3265
Class: 8
PG: II
Proper Shipping Name: CORROSIVE LIQUID, ACIDIC,
ORGANIC, N.O.S.
Marine Pollutant: No
Severe Marine Pollutant: No
Technical Name: Required
IATA
UN#: 3265
Class: 8
PG: II
Proper Shipping Name: Corrosive liquid, acidic,
organic, n.o.s.
Inhalation Packing Group I: No
Technical Name: Required
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: C
Corrosive.
R-PHRASES: 34
Causes burns.
S-PHRASES: 23 26 27 36/37/39 45
Do not breathe vapor. In case of contact with eyes, rinse
immediately with plenty of water and seek medical advice. Take
off immediately all contaminated clothing. 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).
SWITZERLAND
SWISS POISON CLASS: 3
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.,
ALDRICH - D138401 www.sigma-aldrich.com Page 4
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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