Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- Dimethyl sulfoxide
- Product Code
- D2438
Regulatory Identifiers
- CAS Number
- 67-68-5 Check regulations →
Identified Uses
Laboratory chemicals, Synthesis of substances
Manufacturers & Suppliers
Sigma-Aldrich Inc.
manufacturer
3050 SPRUCE ST, ST. LOUIS MO 63103, UNITED STATES
+1 314 771-5765
Emergency Contacts
CHEMTREC
800-424-9300
24 Hours/day; 7 Days/week
CHEMTREC
+1-703-527-3887
24 Hours/day; 7 Days/week
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
Hazard Statements
Precautionary Statements
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| dimethyl sulphoxide EC: 200-664-3 | 67-68-5 | 100% | Yes |
First Aid Measures
Emergency procedures for chemical exposure incidents
fresh air.
Take off immediately all contaminated clothing. Rinse skin with water/ shower.
rinse out with plenty of water. Remove contact lenses.
make victim drink water (two glasses at most). Consult doctor if feeling unwell.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Water, Foam, Carbon dioxide (CO2), Dry powder
For this substance/mixture no limitations of extinguishing agents are given.
Combustible. Vapors are heavier than air and may spread along floors. Forms explosive mixtures with air on intense heating. Development of hazardous combustion gases or vapours possible in the event of fire.
Remove container from danger zone and cool with water. Suppress (knock down) gases/vapors/mists with a water spray jet.
Firefighter Protection
In the event of fire, wear self-contained breathing apparatus.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Do not breathe vapors, aerosols. Keep away from heat and sources of ignition. Evacuate the danger area, observe emergency procedures, consult an expert.
Do not let product enter drains.
Take up with liquid-absorbent material (e.g. Chemizorb®). Dispose of properly. Clean up affected area.
Materials: liquid-absorbent material (e.g. Chemizorb®)
Related Products
Similar products with comparable safety profiles
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
Keep away from open flames, hot surfaces and sources of ignition. Take precautionary measures against static discharge.
Tightly closed. Hygroscopic.
Change contaminated clothing. Wash hands after working with substance.
Keep away from open flames, hot surfaces and sources of ignition.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Full contact Material: Chloroprene Minimum layer thickness: 0.65 mm Break through time: 480 min Material tested: KCL 720 Camapren® Splash contact Material: Latex gloves Minimum layer thickness: 0.6 mm Break through time: 240 min Material tested: Lapren® (KCL 706 / Aldrich Z677558, Size M)
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
required when vapours/aerosols are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Do not let product enter drains.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
The product is chemically stable under standard ambient conditions (room temperature).
Forms explosive mixtures with air on intense heating. A range from approx. 15 Kelvin below the flash point is to be rated as critical.
Risk of explosion with: acetylcholine, organic halides, perchlorates, Acid chlorides, nonmetallic halides, iron(III) compounds, nitrates, fluorides, chlorates, hydrides, perchloric acid, Oxides of phosphorus, Nitric acid, silver compounds, silicon compounds, silanes, acid halides. Exothermic reaction with: boron compounds, oxyhalogenic compounds, Potassium, sodium, Strong oxidizing agents, phosphorus halides, strong reducing agents, Acid chlorides, Strong acids, silver salt, nitrogen dioxide. Risk of ignition or formation of inflammable gases or vapours with: potassium permanganate
Exposure to moisture. Strong heating.
various plastics, Metals
In the event of fire: see section 5
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
12.1 Toxicity
12.1 Toxicity
12.2 Persistence and degradability
12.2 Persistence and degradability
12.3 Bioaccumulative potential
12.4 Mobility in soil
12.5 Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
12.6 Other adverse effects
No data available for endocrine disrupting properties. The substance hydrolyzes readily in water.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
Waste material must be disposed of in accordance with the national and local regulations.
Leave chemicals in original containers. No mixing with other waste.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
- UN Number
- 1993
- Shipping Name
- Combustible liquid, n.o.s. (dimethyl sulphoxide)
- Packing Group
- III
Regulatory Information
Chemical regulations, safety assessments, and compliance status
Frequently Asked Questions
Common questions about safety, handling, and properties
What is the hazard signal word for Dimethyl sulfoxide?
The signal word is warning.
What is the physical form of Dimethyl sulfoxide?
Dimethyl sulfoxide is a liquid appearing as clear, liquid with clear color. It has odorless odor.
What is the solubility of Dimethyl sulfoxide?
Alcohol - soluble, Diethyl ether - soluble
What is Dimethyl sulfoxide used for?
Laboratory chemicals, Synthesis of substances
What are the hazard statements for Dimethyl sulfoxide?
This substance has 1 hazard statement:
- H227: Combustible liquid.
What is the melting point of Dimethyl sulfoxide?
The melting point is 16 - 19 °C (61 - 66 °F) - lit. and the boiling point is 189 °C 372 °F - lit..