Heptane CAS#142-82-5

CAS Number: 142-82-5
Chemical Formula: C7H16
Synonyms:

Aliphatic hydrocarbon
Dipropylmethane
Gettysolve-C

Appearance: Liquid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Heptane CAS#142-82-5

n-Heptane is a clear liquid which is highlyflammable and volatile with a mild, gasoline-like odor. Theodor threshold is 40- 547 ppm; also reported at 230 ppm.Molecular weight = 100.23; Specific gravity (H2O:l)= 0.68;Boiling point = 98.39C; FreezingMelting point= - 90.6℃;Vapor pressure = 40 mmHg at 25℃; Flash point= 一4℃;Autoignition temperature = 204℃.285℃. Explosivelimits:LEL= 1.1%; UEL= 6.7%.Hazard Identification(basedonNFPA-704 M Rating System): Health 1,Flammability 3, Reactivity 0. Practically insoluble in water;solubility = 0.0003%.

Heptane Chemical Properties

Melting point	−91 °C(lit.)
Boiling point	98 °C(lit.)
density	0.684 g/mL at 20 °C
vapor density	3.5 (vs air)
vapor pressure	40 mm Hg ( 20 °C)
refractive index	n20/D 1.397
Fp	30 °F
storage temp.	Store at +5°C to +30°C.
solubility	acetone: miscible(lit.)
form	Liquid
pka	>14 (Schwarzenbach et al., 1993)
Specific Gravity	0.684 (20/4℃)
color	≤10(APHA)
Odor	Gasoline.
Relative polarity	0.012
Odor Threshold	0.67ppm
explosive limit	1-7%(V)
Water Solubility	practically insoluble
λmax	λ: 200 nm Amax: ≤1.0 λ: 225 nm Amax: ≤0.10 λ: 250 nm Amax: ≤0.01 λ: 300-400 nm Amax: ≤0.005
Merck	14,4659
BRN	1730763
Henry's Law Constant	0.901, 1.195, and 1.905(atm?m3/mol) at 26.0, 35.8, and 45.0 °C, respectively (dynamic headspace, Hansen et al., 1995)
Exposure limits	NIOSH REL: TWA 85 ppm (350 mg/m3), 15-min ceiling 440 ppm (1,800 mg/m3), IDLH 750 ppm; OSHA PEL: TWA 500 ppm (2,000 mg/m3); ACGIH TLV: TWA 400 ppm, STEL 500 ppm (adopted).
Dielectric constant	1.9（20℃）
Stability:	Stable. Incompatible with oxidizing agents, chlorine, phosphorus. Highly flammable. Readily forms explosive mixtures with air.
InChIKey	IMNFDUFMRHMDMM-UHFFFAOYSA-N
LogP	4.660
Surface tension	21.12mN/m at 293.15K
CAS DataBase Reference	142-82-5(CAS DataBase Reference)
NIST Chemistry Reference	Heptane(142-82-5)
EPA Substance Registry System	Heptane (142-82-5)
Absorption	0.10 at 225nm 0.40 at 210nm 1.0 at 197nm

Safety Information

Hazard Codes	F,Xn,N
Risk Statements	11-38-50/53-65-67
Safety Statements	9-16-29-33-60-61-62-23
RIDADR	UN 1206 3/PG 2
OEB	A
OEL	TWA: 85 ppm (350 mg/m3), Ceiling: 440 ppm (1800 mg/m3) [15-minute]
WGK Germany	3
RTECS	MI7700000
F	3-10
Autoignition Temperature	433 °F
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29011000
Hazardous Substances Data	142-82-5(Hazardous Substances Data)
Toxicity	LC (2 hr in air) in mice: 75 mg/l (Lazarew)
IDLA	750 ppm