SDS Lookup

Look up chemical safety data, GHS classification, DOT/IMDG transport information, and NFPA hazard ratings. Search by chemical name, CAS number, or UN/NA number.

Compound Identification

Name: 1-ethyl-2-methylbenzene
Molecular Formula: C9H12
PubChem CID: 11903

GHS Classification

NFPA 704 Diamond

Physical Properties

flash_point: 103 °F (USCG, 1999)
boiling_point: 329.4 °F at 760 mmHg (USCG, 1999)
melting_point: -113.4 °F (USCG, 1999)
vapor_pressure: 10.34 mmHg (USCG, 1999)
density: 0.8807 at 68 °F (USCG, 1999) - Less dense than water; will float
solubility
autoignition: 824 °F (USCG, 1999)

First Aid

INHALATION: Remove to fresh air, give artificial respiration and oxygen if needed; call a doctor.
INGESTION: Do NOT induce vomiting; call a doctor.
EYES: Flush with water for at least 15 min.
SKIN: Wipe off, wash with soap and water. (USCG, 1999)

Fire Fighting

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:
CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient. CAUTION: For mixtures containing alcohol or polar solvent, alcohol-resistant foam may be more effective.
SMALL FIRE: Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.
LARGE FIRE: Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.
FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. For petroleum crude oil, do not spray water directly into a breached tank car. This can lead to a dangerous boil over. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)

Frequently Asked Questions

What is an SDS (Safety Data Sheet)?

A Safety Data Sheet (SDS) is a standardized document that provides information about chemical hazards, safe handling, storage, emergency procedures, and transport classification. SDSs follow the GHS (Globally Harmonized System) format with 16 mandatory sections covering identification, hazards, composition, first aid, fire fighting, accidental release, handling, exposure controls, physical properties, stability, toxicology, ecology, disposal, transport, regulatory, and other information.

What do the GHS pictograms mean?

GHS pictograms are standardized hazard symbols: the flame (flammable), exclamation mark (irritant/harmful), skull and crossbones (acute toxicity), corrosion (corrosive), exploding bomb (explosive), flame over circle (oxidizer), gas cylinder (compressed gas), health hazard (serious health effects), and environment (aquatic toxicity). Each pictogram indicates a specific category of hazard.

What is an NFPA diamond?

The NFPA 704 diamond is a color-coded hazard rating system used by emergency responders. Blue = health hazard, Red = flammability, Yellow = instability/reactivity, White = special hazards. Each color section is rated 0 (minimal hazard) to 4 (severe hazard).

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