Home Categories Organic Chemistry Methylcyclohexane
A5373112

Methylcyclohexane , Chromatography, ≥99% , 108-87-2

Synonym(s):
Hexahydrotoluene;Methylcyclohexane in dimethyl sulfoxide;Methylcyclohexane solution

CAS NO.:108-87-2

Empirical Formula: C7H14

Molecular Weight: 98.19

MDL number: MFCD00001497

EINECS: 203-624-3

Update time: 2022-07-08

PRODUCT Properties

Melting point: -126 °C (lit.)
Boiling point: 101 °C (lit.)
Density  0.77 g/mL at 25 °C (lit.)
vapor density  3.4 (vs air)
vapor pressure  37 mm Hg ( 20 °C)
refractive index  n20/D 1.422(lit.)
Flash point: 25 °F
storage temp.  Store below +30°C.
solubility  Miscible with acetone, benzene, ether, carbon tetrachloride, ethanol, insoluble in water.
form  Liquid
color  Colorless
Odor Threshold 0.15ppm
explosive limit 1.1-6.7%(V)
Water Solubility  0.1 g/L (20 ºC)
λmax λ: 207 nm Amax: 1.00
λ: 221 nm Amax: 0.40
λ: 232 nm Amax: 0.15
λ: 260 nm Amax: 0.05
λ: 300-400 nm Amax: 0.01
Merck  14,6047
BRN  505972
Henry's Law Constant 0.0678 at 25.0 °C (Ramachandran et al., 1996)
Exposure limits NIOSH REL: TWA 400 ppm (1,600 mg/m3), IDLH 1,200 ppm; OSHA PEL: TWA 500 ppm (2,000 mg/m3); ACGIH TLV: TWA 400 ppm (adopted).
Dielectric constant 2.1(25℃)
Stability: Stable. Very flammable. Incompatible with strong oxidizing agents.
LogP 3.88

Description and Uses

Methylcyclohexane, an alkene, is a colorless liquid with a faint benzene-like odor. The odor thre-shold is 630 ppm (this is above the OEL). Molecularweight = 98.21; Specific gravity (H2O:1)= 0.77; Boilingpoint = 101℃; Freezing/Melting point= - 127℃; Vaporpressure= 37 mmHg at 20℃; Flash point= - 3.9℃ (cc),- 5.9℃ (oc); Autoignition temperature = 258℃. Explosivelimits: LEL= 1.2%; UEL = 6.7%. Hazard Identification(based on NFPA-704 M Rating System): Health 2,Flammability 3, Reactivity 0. Insoluble in water.

Methylcyclohexane is used as a solvent and reagent in organic synthesis and polymer chemistry. It is a component of jet fuel and also used as correction fluid in certain consumer products. It acts as a starting material for toluene synthesis

Safety

Symbol(GHS) 
GHS02,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H225-H304-H315-H336-H410
Precautionary statements  P210-P233-P273-P301+P310-P303+P361+P353-P331
Hazard Codes  F,Xn,N
Risk Statements  11-38-51/53-65-67
Safety Statements  9-16-33-61-62
OEB A
OEL TWA: 400 ppm (1600 mg/m3)
RIDADR  UN 2296 3/PG 2
WGK Germany  2
RTECS  GV6125000
3-10
Autoignition Temperature 545 °F
TSCA  Yes
HS Code  2902 19 00
HazardClass  3
PackingGroup  II
Toxicity Acute oral LD50 for mice 2,250 mg/kg (quoted, RTECS, 1985).
IDLA 1,200 ppm [10% LEL]

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