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Safety Data Sheet EN

Dimethyl sulfoxide

CAS 67-68-5
EC 200-664-3

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
Dimethyl sulfoxide
Product Code
36480
Chemical Name
Dimethyl sulfoxide
Synonyms
Dimethyl sulfoxide; DMSO

Regulatory Identifiers

CAS Number
67-68-5 Check regulations →
EC Number
200-664-3 Check regulations →

Identified Uses

Laboratory chemicals. Sector of use: SU3 - Industrial uses: Uses of substances as such or in preparations at industrial sites; Product category: PC21 - Laboratory chemicals; Process categories: PROC15 - Use as a laboratory reagent; Environmental release category: ERC6a - Industrial use resulting in manufacture of another substance (use of intermediates)

Uses advised against

No Information available

Manufacturers & Suppliers

A

Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)

manufacturer

Shore Road, Heysham, Lancashire, LA3 2XY, United Kingdom

+44 (0) 1524 850506

Emergency Contacts

Information US

001-800-227-6701

Information Europe

+32 14 57 52 11

Emergency Number US

001-201-796-7100

Emergency Number Europe

+32 14 57 52 99

CHEMTREC US

001-800-424-9300

CHEMTREC Europe

001-703-527-3887

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified warning

Hazard Classifications

Not Classified

GHS Pictograms

Hazard Statements

H227 Combustible liquid

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance
Chemical Name CAS Number Concentration Hazardous
Dimethyl sulfoxide EC: 200-664-3 67-68-5 100% No
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

Remove to fresh air. Get medical attention immediately if symptoms occur. If not breathing, give artificial respiration.

Symptoms: Difficulty in breathing.

Skin contact

Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur.

Eye contact

Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.

Ingestion

Do NOT induce vomiting. Get medical attention.

Immediate Medical Attention

Get medical attention.

Medical Treatment

Treat symptomatically.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

Water spray, carbon dioxide (CO2), dry chemical, alcohol-resistant foam. Water mist may be used to cool closed containers.

Unsuitable media

No information available.

Specific hazards

Combustible material. Containers may explode when heated. Thermal decomposition can lead to release of irritating gases and vapors.

Instructions

As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.

Firefighter Protection

As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Environmental

Should not be released into the environment.

Cleanup methods

Soak up with inert absorbent material.

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Wear personal protective equipment/face protection. Ensure adequate ventilation. Keep away from open flames, hot surfaces and sources of ignition. Avoid contact with skin, eyes or clothing. Avoid ingestion and inhalation.

Storage

Keep containers tightly closed in a dry, cool and well-ventilated place. Keep away from heat, sparks and flame.

Hygiene

Handle in accordance with good industrial hygiene and safety practice. Keep away from food, drink and animal feeding stuffs. Do not eat, drink or smoke when using this product. Remove and wash contaminated clothing and gloves, including the inside, before re-use. Wash hands before breaks and after work.

Fire prevention

Keep away from open flames, hot surfaces and sources of ignition. Keep away from heat, sparks and flame.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Engineering

Ensure adequate ventilation, especially in confined areas. Ensure that eyewash stations and safety showers are close to the workstation location.

Hands

Protective gloves. Neoprene (Breakthrough time: > 480 minutes, Thickness: 0.45 mm, EU standard: Level 6 EN 374). Nitrile rubber (Breakthrough time: > 480 minutes, Thickness: > 0.2 mm). Inspect gloves before use. Observe instructions regarding permeability and breakthrough time. Ensure gloves are suitable for the task. Remove gloves with care avoiding skin contamination.

Eyes

Wear safety glasses with side shields (or goggles) (European standard - EN 166)

Respiratory

When workers are facing concentrations above the exposure limit they must use appropriate certified respirators. Large scale/emergency use: Use a NIOSH/MSHA or European Standard EN 136 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Recommended Filter type: Particle filter. Small scale/Laboratory use: Maintain adequate ventilation.

Skin/Body

Long sleeved clothing.

Environmental

Prevent product from entering drains.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Solubility In Fat
---
Relative Evaporation Rate
---
Crystallisation Point
---
Physical State Data
liquid
Evaporation Rate
No information available
Relative Density
1.100
Solubility In Water
Soluble
Molecular Weight
78.13
Melting Point
18.4 °C / 65.1 °F
Partition Coefficient
-1.35
Properties Status
---
Auto Ignition Temperature
301 °C / 573.8 °F
Density
1.100
Physical State
Liquid
Decomposition Temperature
> 190°C
Flammability
Combustible liquid
Metal Corrosion
---
Odor Threshold
No data available
Solubility
Soluble
Colour Intensity
---
Vapor Density
2.7 (Air = 1.0)
Vapor Pressure
0.55 mbar @ 20°C
Colour
Colorless
Dynamic Viscosity
1.98 mPa.s @ 25°C
Kinematic Viscosity
---
Lower Explosive Limit
2.6 Vol%
Softening Point
No data available
Bulk Density
Not applicable
Boiling Point
189 °C / 372.2 °F
Form
---
Appearance
Colorless
Cloud Point
---
Solidification Point
---
Explosive Limits
---
State Under Standard Conditions
---
Freezing Point
---
Flash Point
87 °C / 188.6 °F
Voc Content
---
Odor
Odorless
Upper Explosive Limit
42 Vol%
Ph
No information available
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

Hygroscopic.

Reactivity

None known, based on information available

Hazardous reactions

Hazardous polymerization does not occur. Thermal decomposition can take place above 189°C / 372°F.

Avoid

Incompatible products. Excess heat. Exposure to moist air or water. Keep away from open flames, hot surfaces and sources of ignition.

Incompatible

Strong oxidizing agents. Strong acids. Strong bases. Alkali metals.

Decomposition

Carbon monoxide (CO). Carbon dioxide (CO₂). Sulfur oxides. Sulfides. Formaldehyde.

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

Treatment

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Consult local, regional, and national hazardous waste regulations to ensure complete and accurate classification.

Disposal

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste.

Waste Codes

Waste Codes are not product specific, but application specific. EWC
14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

Chemical Safety Assessment Not performed
?

Frequently Asked Questions

Common questions about safety, handling, and properties

What other names is Dimethyl sulfoxide known by?

Dimethyl sulfoxide is also known as: Dimethyl sulfoxide; DMSO

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 colorless with colorless color. It has odorless odor.

What is the solubility of Dimethyl sulfoxide?

Soluble

What is Dimethyl sulfoxide used for?

Laboratory chemicals. Sector of use: SU3 - Industrial uses: Uses of substances as such or in preparations at industrial sites; Product category: PC21 - Laboratory chemicals; Process categories: PROC15 - Use as a laboratory reagent; Environmental release category: ERC6a - Industrial use resulting in manufacture of another substance (use of intermediates)

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 18.4 °C / 65.1 °F and the boiling point is 189 °C / 372.2 °F.