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Safety Data Sheet EN

Mesitylene

CAS 108-67-8
EC 203-604-4

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
Mesitylene
Product Code
A11323
Chemical Name
1,3,5-Trimethylbenzeen

Regulatory Identifiers

CAS Number
108-67-8 Check regulations →
EC Number
203-604-4 Check regulations →

Identified Uses

SU24 Scientific research and development

Manufacturers & Suppliers

Alfa Aesar Thermo Fisher Scientific Chemicals, Inc. logo

Alfa Aesar Thermo Fisher Scientific Chemicals, Inc.

manufacturer

30 Bond Street, Ward Hill, MA 01835-8099

800-343-0660

http://www.alfa.com

Emergency Contacts

Emergency Contact

800-343-0660

Monday-Friday, 8am-7pm EST

Carechem 24

866-928-0789

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified warning

Hazard Classifications

Flam. Liq. Cat. 3 H226
STOT SE Cat. 3 H335

GHS Pictograms

GHS02 - Flammable

GHS02

GHS07 - Health hazard

GHS07

Hazard Statements

H226 Flammable liquid and vapor.
H335 May cause respiratory irritation.

Precautionary Statements

P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapors/spray
P280 Wear protective gloves / eye protection / face protection.
P303+P361+P353 If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local/regional/national/international regulations.

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance

Substances

Chemical Name CAS Number Concentration Hazardous
1,3,5-Trimethylbenzeen EC: 203-604-4 108-67-8 100% No
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

Supply fresh air. If required, provide artificial respiration. Keep patient warm.

Skin contact

Immediately wash with water and soap and rinse thoroughly.

Eye contact

Rinse opened eye for several minutes under running water. Then consult a doctor.

Ingestion

Seek medical treatment.

Related Substances

Similar chemicals with comparable safety profiles

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Engineering

Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute.

Hands

Impervious gloves. Check protective gloves prior to each use for their proper condition. The selection of suitable gloves not only depends on the material, but also on quality. Quality will vary from manufacturer to manufacturer. Material of gloves Fluorocarbon rubber (Viton). Penetration time of glove material (in minutes) 480. Glove thickness: 0.7 mm.

Eyes

Safety glasses with side shields / NIOSH (US) or EN 166(EU).

Respiratory

Use suitable respirator when high concentrations are present. Recommended filter device for short term use: Use a respirator with multi-purpose combination (US) or type ABEK (EN 14387) as a backup to engineering controls. Risk assessment should be performed to determine if air-purifying respirators are appropriate. Only use equipment tested and approved under appropriate government standards such as NIOSH (USA) or CEN (EU).

Skin/Body

Protective work clothing.

09

Physical and Chemical Properties

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

Solubility In Water
2.9 g/l
Explosive Limits
---
Evaporation Rate
Not determined.
Boiling Point
163-165 °C (325-329 ºF)
Flash Point
44 °C (111 ºF)
Dynamic Viscosity
Not determined.
Auto Ignition Temperature
550 °C (1022 °F)
Vapor Density
Not determined.
Ph
Not determined.
Softening Point
---
Solubility
---
Appearance
---
Kinematic Viscosity
Not determined.
Crystallisation Point
---
Lower Explosive Limit
Not determined
Vapor Pressure
2.8 hPa (2 mm Hg)
Density
0.865 g/cm3 (7.218 lbs/gal)
Physical State
Liquid
Properties Status
---
State Under Standard Conditions
---
Odor
Unpleasant
Flammability
Not determined.
Solubility In Fat
---
Relative Evaporation Rate
---
Colour
---
Upper Explosive Limit
Not determined
Form
Liquid
Decomposition Temperature
Not determined
Freezing Point
---
Partition Coefficient
Not determined.
Cloud Point
---
Metal Corrosion
---
Bulk Density
---
Colour Intensity
---
Voc Content
---
Relative Density
Not determined.
Solidification Point
---
Melting Point
-45 °C (-49 °F)
Odor Threshold
Not determined.
Molecular Weight
---
Physical State Data
liquid
14

Transport Information

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

UN Number
UN2325
Shipping Name
1,3,5-Trimethylbenzene
Transport Class
3
Packing Group
III
ADR

Warning: Flammable liquids

IMDG

Warning: Flammable liquids

IATA

Warning: Flammable liquids

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Frequently Asked Questions

Common questions about safety, handling, and properties

What is the hazard signal word for Mesitylene?

The signal word is warning.

What is the physical form of Mesitylene?

Mesitylene is a liquid . It has unpleasant odor.

What is Mesitylene used for?

SU24 Scientific research and development

What are the hazard statements for Mesitylene?

This substance has 2 hazard statements:

  • H226: Flammable liquid and vapor.
  • H335: May cause respiratory irritation.

What is the melting point of Mesitylene?

The melting point is -45 °C (-49 °F) and the boiling point is 163-165 °C (325-329 ºF).

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