SoleChem

Methylcyclohexane

CAS
108-87-2
EC
203-624-3
Mol. Weight
98.19 g/mol

Description

Methylcyclohexane (CAS 108-87-2), also known commercially as MCH and toluene hexahydride, is a saturated alicyclic hydrocarbon solvent used across industrial and specialty chemical applications.

It functions as a non-polar solvent and process carrier where low water miscibility and controlled evaporation are required. In catalyst research and chemical synthesis, MCH serves as a hydrogen carrier.

This occurs in thermochemical energy storage systems, where cyclical dehydrogenation to toluene enables hydrogen release on demand. Formulators in personal care use it as a solvent carrier in fragrance concentrates.

It is also utilized in aerosol delivery systems requiring clean evaporation profiles. In flavor and fragrance manufacturing, MCH acts as an extraction and dilution solvent for sensitive aroma compounds.

This is particularly useful where residual solvent control is critical to finished product compliance. Industrial coatings and adhesive processors also select it as a hydrocarbon diluent.

It is preferred in applications where aromatic solvents must be avoided. Methylcyclohexane is supplied as a clear liquid in standard bulk quantities including drums, IBCs, and isotanks.

Technical grade is the most common commercial specification, with high-purity grades available for catalyst and specialty synthesis applications. Buyers should confirm purity thresholds before sourcing.

Residual aromatic content should be checked against process or regulatory requirements. This ensures the material meets the necessary performance standards for specific industrial or laboratory use.

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Physical Properties

Melting Point -126.6 °C
Boiling Point 100.9 °C @ Press: 760 Torr
Density 0.7694 g/cm³ @ Temp: 20 °C
Flash Point 25 °F
Appearance Methylcyclohexane, an alkene, is a colorless liquid with a faint benzene-like odor. The odor threshold is 630 ppm (this is above the OEL).
Color Colorless
Odor Faint, petroleum-like
Form Liquid
Water Solubility 0.1 g/L (20 ºC)
Vapor Pressure 37 mm Hg ( 20 °C)
Refractive Index n 20/D 1.422(lit.)
Log P 3.88

Safety & Handling (Learn More)

Danger GHS02 GHS07 GHS08 GHS09
Hazard Statements
H225 Highly Flammable liquid and vapor
H302 Harmful if swallowed
H304 May be fatal if swallowed and enters airways
H315 Causes skin irritation
H316 Causes mild skin irritation
H320 Causes eye irritation
H332 Harmful if inhaled
H335 May cause respiratory irritation
H336 May cause drowsiness or dizziness
H373 May causes damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
P242 Use non-sparking tools.
P243 Take action to prevent static discharges.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P331 Do NOT induce vomiting.
P391 Collect spillage.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P301+P316 Get emergency medical help immediately.
P301+P317 Get emergency medical help.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P332+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P370+P378 Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 2902 19 00
UN Number 2296
ADR Class 3
Packing Group II
Storage Class 3 - Flammable liquids
WGK (Germany) 2

Documentation

Other Names

Cyclohexane, methyl-|Toluene hexahydride|Sextone B|Toluene, hexahydro-|MCH|Cyclohexylmethane.

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