Home Categories Chemical Reagents Octane
A6519312

Octane , Pure chromatography,> 99%(GC) , 111-65-9

Synonym(s):
n-Octane;n-Octane

CAS NO.:111-65-9

Empirical Formula: C8H18

Molecular Weight: 114.23

MDL number: MFCD00009556

EINECS: 203-892-1

Update time: 2022-07-08

PRODUCT Properties

Melting point: −57 °C(lit.)
Boiling point: 125-127 °C(lit.)
Density  0.703 g/mL at 25 °C(lit.)
vapor density  3.9 (vs air)
vapor pressure  11 mm Hg ( 20 °C)
refractive index  n20/D 1.398(lit.)
Flash point: 60 °F
storage temp.  Store below +30°C.
solubility  ethanol: soluble(lit.)
form  Liquid
pka >14 (Schwarzenbach et al., 1993)
color  Clear colorless
Odor Like gasoline.
Odor Threshold 1.7ppm
explosive limit 0.8-6.5%(V)
Water Solubility  0.0007 g/L (20 ºC)
Merck  14,6749
BRN  1696875
Henry's Law Constant 4.45 at 25 °C (J?nsson et al., 1982)
Exposure limits TLV-TWA 300 ppm (~1450 mg/m3) (ACGIH and NIOSH), 500 ppm (~2420 mg/m3) (OSHA); STEL 375 ppm (~1800 mg/m3).
Dielectric constant 1.1(-4℃)
Stability: Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with oxidizing agents.
InChIKey TVMXDCGIABBOFY-UHFFFAOYSA-N
LogP 5.15

Description and Uses

Octane is a colorless liquid with a gasolinelike odor. The odor threshold is 4 ppm and 48 ppm (NewJersey Fact Sheet). Molecular weight = 114.26; Specificgravity (H2O:1)= 0.70; Boiling point = 125.6℃; Freezing/Melting point = 256.7℃; Vapor pressure =10 mmHg at20℃; Flash point =13℃(cc); Autoignition temperature =206℃. Explosive limits: LEL 5 1.0%; UEL = 6.5%.Hazard Identification (based on NFPA-704 M RatingSystem): Health 0, Flammability 3, Reactivity 0. Practicallyinsoluble in water; solubility = 7 × 10-5.

n-Octane occurs in petroleum crackingproducts, gasoline, petroleum ether, andpetroleum naphtha. It is used as a solventand in organic 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  11-38-50/53-65-67
Safety Statements  9-16-29-33-60-61-62
RIDADR  UN 1262 3/PG 2
OEB A
OEL TWA: 75 ppm (350 mg/m3), Ceiling: 385 ppm (1800 mg/m3) [15-minute]
WGK Germany  1
RTECS  RG8400000
Autoignition Temperature 428 °F
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29011000
Toxicity LDLo intravenous in mouse: 428mg/kg
IDLA 1,000 ppm [10% LEL]

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