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Heptane structure
Chemical Name:
Eptani;Heptan;HEPTANE;n-C7H16;Heptanen;heptanes;ALKANE C7;1-HEPTANE;N-HEPTANE;N-HeptaneGr
Molecular Formula:
Formula Weight:
MOL File:

Heptane Properties

Melting point:
−91 °C(lit.)
Boiling point:
98 °C(lit.)
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
Flash point:
30 °F
storage temp. 
acetone: miscible(lit.)
Specific Gravity
0.684 (20/4℃)
Relative polarity
explosive limit
Water Solubility 
practically insoluble
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
Stable. Incompatible with oxidizing agents, chlorine, phosphorus. Highly flammable. Readily forms explosive mixtures with air.
CAS DataBase Reference
142-82-5(CAS DataBase Reference)
NIST Chemistry Reference
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
  • NFPA
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
WGK Germany  3
RTECS  MI7700000
Autoignition Temperature 433 °F
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)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H260 In contact with water releases flammable gases which may ignite spontaneously Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases Category 1 Danger P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H320 Causes eye irritation Serious eye damage/eye irritation Category 2B Warning P264, P305+P351+P338,P337+P313
H333 May be harmful if inhaled Acute toxicity,inhalation Category 5 P304+P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
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.
P331 Do NOT induce vomiting.
P391 Collect spillage. Hazardous to the aquatic environment
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353 IF ON SKIN (or hair): Remove/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. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

NFPA 704

Diamond Hazard Value Description
HEALTH   1 Exposure would cause irritation with only minor residual injury (e.g. acetone, sodium bromate, potassium chloride)
FIRE  3 Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone)

(NFPA, 2010)

Heptane price More Price(88)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 246654 Heptane anhydrous, 99% 142-82-5 6x1l $453 2018-11-13 Buy
Sigma-Aldrich 1304209 Heptane United States Pharmacopeia (USP) Reference Standard 142-82-5 3x1.2ml $348 2018-11-13 Buy
TCI Chemical H0027 Heptane [for Spectrophotometry] >99.0%(GC) 142-82-5 100mL $44 2018-11-22 Buy
TCI Chemical H0491 Heptane [for HPLC Solvent] >99.0%(GC) 142-82-5 500mL $136 2018-11-22 Buy
Alfa Aesar 022911 n-Heptane, HPLC grade, 99+% 142-82-5 250ml $25 2018-11-16 Buy

Heptane Chemical Properties,Uses,Production

Chemical Properties

colourless liquid

Chemical Properties

n-Heptane is a flammable liquid, present in crude oil and widely used in the auto- mobile industry. For example, as a solvent, as a gasoline knock testing standard, as automotive starter fl uid, and paraffi nic naphtha. n-Heptane causes adverse health effects in occupational workers, such as CNS depression, skin irritation, and pain. Other compounds such as n-octane (CH 3 (CH 2 ) 6 CH 3 ), n-nonane (CH 3 (CH 2 ) 7 CH 3 ), and n-decane (CH 3 (CH 2 ) 8 CH 3 ) have different industrial applications. Occupational workers exposed to these compounds also show adverse health effects. In principle, manage- ment of these aliphatic compounds requires proper handling and disposal to avoid health problems and to maintain chemical safety standards for safety to workers and the living environment.

Chemical Properties

n-Heptane is a clear liquid which is highly flammable and volatile with a mild, gasoline-like odor. The odor threshold is 40 547 ppm; also reported @ 230 ppm.


Suitable for HPLC, spectrophotometry, environmental testing


heptane is a solvent and viscosity-decreasing agent.


As standard in testing knock of gasoline engines.


A colorless liquid alkane obtained from petroleum refining. It is used as a solvent.


heptane: A liquid straight-chainalkane obtained from petroleum,C7H16; r.d. 0.684; m.p. -90.6°C; b.p.98.4°C. In standardizing octanenumbers, heptane is given a valuezero.

General Description

Clear colorless liquids with a petroleum-like odor. Flash point 25°F. Less dense than water and insoluble in water. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

HEPTANE is incompatible with the following: Strong oxidizers .


Toxic by inhalation. Flammable, dangerous fire risk.

Health Hazard

VAPOR: Not irritating to eyes, nose or throat. If inhaled, will cause coughing or difficult breathing. LIQUID: Irritating to skin and eyes. If swallowed, will cause nausea or vomiting.

Fire Hazard

FLAMMABLE. Flashback along vapor trail may occur. Vapor may explode if ignited in an enclosed area.

Fire Hazard

Flash Point (°F): 25 ℃; Flammable Limits in Air (%): 1.0 - 7.0; Fire Extinguishing Agents: Foam, dry chemical, or carbon dioxide; Fire Extinguishing Agents Not To Be Used: Not pertinent; Special Hazards of Combustion Products: Not pertinent; Behavior in Fire: Not pertinent; Ignition Temperature (°F): 433; Electrical Hazard: Class I, Group D; Burning Rate: 6.8 mm/min.

Chemical Reactivity

Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Potential Exposure

n-Heptane is used in graphics, textiles, adhesives, and coatings; as an industrial solvent and in the petroleum refining process; as a standard in testing knock of gasoline engines.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, includ ing resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medi cal attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.


UN1206 Heptanes, Hazard Class: 3; Labels: 3-Flammable liquid.


May form explosive mixture with air. Strong oxidizers may cause fire and explosions. Attacks some plastics, rubber and coatings. May accumulate static electric charges that can ignite its vapors.

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinera tor equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Heptane Preparation Products And Raw materials

Raw materials

Preparation Products

Heptane Suppliers

Global( 286)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22043 58
Shanghai Bojing Chemical Co.,Ltd.
+86-21-37127788 CHINA 500 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20786 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32651 55
Hangzhou FandaChem Co.,Ltd.
0086 158 5814 5714 (Mobile; WhatsApp; Telegram)
+86-571-56059825 CHINA 2456 55
Nanjing ChemLin Chemical Industry Co., Ltd.
025-83697070; CHINA 3015 60
career henan chemical co
+86-371-86658258 CHINA 19997 58
Beijing Universal Century Technology Co., Ltd. 400-8706899
400-8706899 China 3672 55
ShanXi Tuoyuxinghua Technology Co., Ltd. 0913-2123492
0913-2123492 China 54 55
Beyond IndustriesChina Limited 021-62570235,18721906063
021-62570268 China 706 55

View Lastest Price from Heptane manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-18 Heptane
US $1.00 / kg 1kg 95%-99% 10kg career henan chemical co

Heptane Spectrum

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