SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 31/JUL/2005
Date Updated: 14/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 DIMETHOXYMETHANE, REAGENTPLUS(TM), 99%
Product Number D134651
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
DIMETHOXYMETHANE 109-87-5 203-714-2 None
Formula C3H8O2
Molecular Weight 76.1 AMU
Synonyms Anesthenyl * Bis(methoxy)methane *
Dimethoxymethane (ACGIH:OSHA) * Dimethyl formal
* Dioxapentane * Formal * Formaldehyde
dimethylacetal * Formaldehyde methyl ketal *
Methoxymethyl methyl ether * Methylal
(ACGIH:OSHA) * Methylene dimethyl ether *
Metylal (Polish)
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Highly flammable. May form explosive peroxides. Irritating to eyes.
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: Carbon dioxide, dry chemical powder, or appropriate
foam.
Unsuitable: Carbon Dioxide, dry chemical powder, or appropriate
foam. Water can be applied as a spray or fog and if properly
applied is capable of extinguishing the fire by sweeping the
flames off the surface of the burning liquid.
SPECIAL RISKS
Specific Hazard(s): Flammable liquid. Emits toxic fumes under
fire conditions. Vapor may travel considerable distance to
source of ignition and flash back.
Explosion Hazards: 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. Avoid
contact with eyes, skin, and clothing. Avoid prolonged or
repeated exposure. Open carefully. Refrigerate before opening.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from heat,
sparks, and open flame. Store in a cool dry place.
Unsuitable: Forms explosive peroxides on prolonged storage
SPECIAL REQUIREMENTS: May develop pressure. Open carefully.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use nonsparking tools. Mechanical
exhaust required.
GENERAL HYGIENE MEASURES
Remove and wash contaminated clothing promptly. Wash thoroughly
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after handling.
EXPOSURE LIMITS
Country Source Type Value
Poland NDS 1000 MG/M3
Poland NDSCh 3500 MG/M3
Poland NDSP -
EXPOSURE LIMITS - DENMARK
Source Type Value
OEL TWA 3,100 mg/m3
1,000 ppm
EXPOSURE LIMITS - GERMANY
Source Type Value
TRGS 900 OEL 3,100 mg/m3
1,000 ppm
EXPOSURE LIMITS - NORWAY
Source Type Value
OEL 1,550 mg/m3
500 ppm
EXPOSURE LIMITS - SWITZERLAND
Source Type Value
OEL OEL 3,100 mg/m3
1,000 ppm
EXPOSURE LIMITS - UNITED KINGDOM
Source Type Value
OEL OEL 3,160 mg/m3
1,000 ppm
OEL STEL 3,950 mg/m3
1,250 ppm
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Color: Colorless
Form: Clear liquid
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 41 - 43 掳C
MP/MP Range -105 掳C
Flash Point -18 掳C Method: closed cup
Flammability N/A
Autoignition Temp 237 掳C
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 1.6 %
Upper: 17.6 %
Vapor Pressure 329.846 mmHg 20 掳C
SG/Density 0.859 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 2.6 g/l
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Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content 0.1 %
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility Solubility in Water:Soluble.
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Conditions of Instability: May decompose on exposure to light. May
decompose on exposure to air.
Materials to Avoid: Oxidizing agents, Acids.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: PA8750000
ACUTE TOXICITY
LC50
Inhalation
Rat
15,000 ppm
LC50
Inhalation
Mouse
57,000 mg/m3
7H
LD50
Oral
Rabbit
5708 mg/kg
IRRITATION DATA
Eyes
Rabbit
0.1 ml
Remarks: Moderate irritation effect
SIGNS AND SYMPTOMS OF EXPOSURE
Prolonged exposure can cause: Narcotic effect. Prolonged or
repeated contact with skin can cause defatting and dermatitis.
Contact with eyes can cause redness, tearing, and blurred
vision. Ingestion may cause gastrointestinal irritation.
ROUTE OF EXPOSURE
Skin Contact: May cause skin irritation.
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Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes eye irritation.
Inhalation: May be harmful if inhaled. Material may be
irritating to mucous membranes and upper respiratory tract.
Ingestion: May be harmful if swallowed.
TARGET ORGAN INFORMATION
Eyes. Kidneys. Heart. Lungs. Central nervous system. Liver.
12 - Ecological Information
No data available.
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#: 1234
Class: 3
PG: II
Proper Shipping Name: Methylal
IMDG
UN#: 1234
Class: 3
PG: II
Proper Shipping Name: Methylal
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 1234
Class: 3
PG: II
Proper Shipping Name: Methylal
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: F Xi
Highly Flammable. Irritant.
R-PHRASES: 11 19 36
Highly flammable. May form explosive peroxides. Irritating to
eyes.
S-PHRASES: 7/9 16 26 33
Keep container tightly closed and in well-ventilated place.
Keep away from sources of ignition - no smoking. In case of
contact with eyes, rinse immediately with plenty of water and
seek medical advice. Take precautionary measures against static
discharges.
COUNTRY SPECIFIC INFORMATION
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Germany
WGK: 1
SWITZERLAND
SWISS POISON CLASS: 4
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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