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142-82-5

Basic Information
CAS No.: 142-82-5
Name: N-Heptane
Molecular Structure:
Molecular Structure of 142-82-5 (N-Heptane)
Formula: C7H16
Molecular Weight: 100.23
Synonyms: Heptanen;Eptani;Heptan;Dipropylmethane;1-Heptane;Skellysolve C;Heptyl hydride;
EINECS: 205-563-8
Density: 0.695 g/cm3
Melting Point: -91 °C
Boiling Point: 98.8 °C at 760 mmHg
Flash Point: 30 °F
Solubility: practically insoluble in water
Appearance: colourless liquid
Hazard Symbols: FlammableF,HarmfulXn,DangerousN
Risk Codes: 11-38-50/53-65-67
Safety: 9-16-29-33-60-61-62-23
Transport Information: UN 1206 3/PG 2
PSA: 0.00000
LogP: 2.97670
Synthetic route
4282-40-0

1-Iodoheptane

142-82-5

n-heptane

Conditions
ConditionsYield
With lithium aluminium tetrahydride In diethylene glycol dimethyl ether at 0℃; for 1h; Product distribution; other solvent;100%
With ethanol; coppered zinc
124-07-2

Octanoic acid

142-82-5

n-heptane

Conditions
ConditionsYield
With palladium on silica gel; hydrogen at 300℃; under 760.051 Torr; for 4h; Temperature; Flow reactor;100%
With hydrogen; silica gel; palladium at 330℃; Ni/Al2O3, 180 deg C;97%
With Au0012O19676(00)Pd042(98)Si038; hydrogen at 260℃; under 760.051 Torr; Catalytic behavior; Reagent/catalyst;
3642-12-4

1,2,6-heptatriene

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In 2,2,4-trimethylpentane Thermodynamic data; ΔHH;100%
4282-40-0

1-Iodoheptane

1631-73-8

trimethylstannane

4111-54-0

lithium diisopropyl amide

A

142-82-5

n-heptane

B

661-69-8

hexamethyldistannane

C

1068-71-9

diisopropyl(trimethylstannyl)amine

Conditions
ConditionsYield
In hexane; cyclohexane to soln. of 1-iodoheptane (1.0 mmol) and TMTH (1.0 mmol) in hexane at 0°C added LDA (1.0 mmol, 1.6 M soln. in cyclohexane) under Ar, react. time 10 min; analyzed by GLPC;A 99%
B 0%
C n/a
In hexane; cyclohexane to soln. of 1-iodoheptane (1.0 mmol) and TMTH (1.0 mmol) in hexane at 0°C added LDA (0.8 mmol, 1.6 M soln. in cyclohexane) under Ar, react. time 10 min; analyzed by GLPC;A 98%
B 0%
C n/a
In hexane; cyclohexane to soln. of 1-iodoheptane (1.0 mmol) and TMTH (1.0 mmol) in hexane at 0°C added LDA (0.6 mmol, 1.6 M soln. in cyclohexane) under Ar, react. time 10 min; analyzed by GLPC;A 94%
B 0%
C n/a
In hexane; cyclohexane to soln. of 1-iodoheptane (1.0 mmol) and TMTH (1.0 mmol) in hexane at 0°C added LDA (0.4 mmol, 1.6 M soln. in cyclohexane) under Ar, react. time 10 min; analyzed by GLPC;A 84%
B 0%
C n/a
In hexane; cyclohexane to soln. of 1-iodoheptane (1.0 mmol) and TMTH (1.0 mmol) in hexane at 0°C added LDA (0.2 mmol, 1.6 M soln. in cyclohexane) under Ar, react. time 10 min; analyzed by GLPC;A 74%
B 0%
C n/a
629-04-9

1-Bromoheptane

1631-73-8

trimethylstannane

A

142-82-5

n-heptane

B

1527-99-7

n-butyltrimethyltin

Conditions
ConditionsYield
With n-butyllithium In hexane n-BuLi (1.50 mmol, 2.40 M soln. in hexane) added to soln. of TMTH (1.50 mmol) in hexane under Ar, stirred for 3 h at room temp., 1-bromoheptane (1.50 mmol) added, heated to reflux for 2 h; analyzed by GC;A 7%
B 99%
With n-butyllithium In hexane 1-bromoheptane (1 equiv.) and TMTH (1 equiv.) in hexane cooled to 0°C under Ar, n-BuLi (1 equiv., 2.40 M in hexane) added, stirred for 5 min, quenched with water; analyzed by GC;A 98%
B 93%
With n-butyllithium In hexane to 1-bromoheptane (2.20 mmol) and TMTH (2.20 mmol) in hexane at 0°C under Ar added n-BuLi (2.20 mmol, in hexane) in four 0.55-mmol increments, stirred for 5 min; various product ratio (yields) for various amounts of n-BuLi increments added; analyzed by GC;
628-71-7

1-Heptyne

A

592-76-7

1-Heptene

B

142-82-5

n-heptane

Conditions
ConditionsYield
With quinoline; oct-1-ene; hydrogen; Lindlar's catalystA 98.3%
B 1.7%
With hydrogen; silica gel; rhodium(1+) In ethanol; toluene at 40℃; under 1320.1 Torr; Product distribution;A 32%
B 1%
With hydrogen; copper at 200℃;
4282-40-0

1-Iodoheptane

1631-73-8

trimethylstannane

A

142-82-5

n-heptane

B

1527-99-7

n-butyltrimethyltin

Conditions
ConditionsYield
With n-butyllithium In hexane 1-iodoheptane (1 equiv.) and TMTH (1 equiv.) in hexane cooled to 0°C under Ar, n-BuLi (1 equiv., 2.40 M in hexane) added, stirred for 15 min, quenched with water; analyzed by GC;A 92%
B 98%
106-35-4

heptan-3-one

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen; K-10 montmorillonite; platinum In diethylene glycol dimethyl ether under 37503 Torr; for 16h; Reduction;97%
6056-50-4

tricyclohexyltin hydride

629-04-9

1-Bromoheptane

A

7067-44-9

(cyclo-C6H11)3SnC4H9

B

142-82-5

n-heptane

Conditions
ConditionsYield
With n-butyllithium In hexane 1-bromoheptane (1 equiv.) and TMTH (1 equiv.) in hexane cooled to 0°C under Ar, n-BuLi (1 equiv., 2.40 M in hexane) added, stirred for 15 min, quenched with water; analyzed by GC;A n/a
B 97%
110-43-0

n-pentyl methyl ketone

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen; K-10 montmorillonite; platinum In diethylene glycol dimethyl ether under 37503 Torr; for 24h; Reduction;96%
1974-04-5

2-bromoheptane

1631-73-8

trimethylstannane

A

142-82-5

n-heptane

B

1527-99-7

n-butyltrimethyltin

Conditions
ConditionsYield
With n-butyllithium In hexane 2-bromoheptane (1 equiv.) and TMTH (1 equiv.) in hexane cooled to 0°C under Ar, n-BuLi (1 equiv., 2.40 M in hexane) added, stirred for 5 min, quenched with water; analyzed by GC;A 96%
B 93%
629-06-1

1-Chloroheptane

1631-73-8

trimethylstannane

A

142-82-5

n-heptane

B

1527-99-7

n-butyltrimethyltin

Conditions
ConditionsYield
With n-butyllithium In hexane 1-chloroheptane (1 equiv.) and TMTH (1 equiv.) in hexane cooled to 0°C under Ar, n-BuLi (1 equiv., 2.40 M in hexane) added, stirred for 4 h, quenched with water; analyzed by GC;A 6%
B 93%
With n-butyllithium In hexane 1-chloroheptane (1 equiv.) and TMTH (1 equiv.) in hexane cooled to 0°C under Ar, n-BuLi (1 equiv., 2.40 M in hexane) added, stirred for 15 min, quenched with water; analyzed by GC;A 0%
B 36%
111-70-6

n-heptan1ol

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen; AIOTfbpy-Pd In 1,2-dichloro-ethane at 200℃; under 37503.8 Torr; for 24h; Glovebox; Inert atmosphere;92%
With hydrogen; Al(OH)(2,2'-bipyridine-5,5'-dicarboxylic acid)0.81(PdCl2)0.48(OTf)0.38 In 1,2-dichloro-ethane at 200℃; under 15001.5 Torr; for 24h; Autoclave;78%
628-71-7

1-Heptyne

A

592-76-7

1-Heptene

B

592-78-9

hept-3-ene

C

592-77-8

hept-2-ene

D

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen; palladium dichloride In N,N-dimethyl-formamide under 18751.5 Torr; for 0.416667h; Product distribution; Ambient temperature; various time;A 89%
B 1.8%
C 2.9%
D 6.3%
123-19-3

4-heptanone

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen; aluminum oxide; nickel at 190℃;88%
With molybdenum trisulfide at 300℃; under 73550.8 - 110326 Torr; Hydrogenation;
With cobalt(II) oxide; molybdenum trisulfide; decalin at 345℃; under 72079.8 Torr; Hydrogenation;
With hydrogenchloride; amalgamated zinc
124-07-2

Octanoic acid

A

111-65-9

octane

B

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen In water at 240℃; under 22502.3 Torr; for 12h; Catalytic behavior; Temperature; Reagent/catalyst; Autoclave;A 5.9%
B 87.4%
With hydrogen In dodecane at 350℃; under 30003 Torr; for 8h; Autoclave; chemoselective reaction;A 83.2 %Chromat.
B 9.1 %Chromat.
6443-92-1

(Z)-hept-2-ene

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen In ethanol at 100℃; under 30003 Torr; Flow reactor; Green chemistry; chemoselective reaction;87%
629-06-1

1-Chloroheptane

142-82-5

n-heptane

Conditions
ConditionsYield
With water; sodium iodide; nickel dichloride; zinc; sonication In N,N,N,N,N,N-hexamethylphosphoric triamide at 60℃; for 1h; Product distribution;85%
With water; sodium iodide; nickel dichloride; zinc; sonication In N,N,N,N,N,N-hexamethylphosphoric triamide at 60℃; for 1h;85%
629-04-9

1-Bromoheptane

73908-04-0

triethylcarbinyl bromide

1631-73-8

trimethylstannane

A

617-78-7

3-ethylpentane

B

142-82-5

n-heptane

C

816-79-5

3-ethyl-2-pentene

Conditions
ConditionsYield
With n-butyllithium In hexane n-BuLi (0.81 mmol, 0.70 M soln. in hexane) added to mixt. of 1-bromoheptane (0.81 mmol), 3-bromo-3-ethylpentane(0.81 mmol), and TMTH (0.81 mmol) in hexane under Ar, after 15 min of stirring at 0°C quenched with water; analyzed by GC;A 84%
B 5%
C 11%
14686-13-6

(E)-hept-2-ene

142-82-5

n-heptane

Conditions
ConditionsYield
With hydrogen In ethanol at 100℃; under 30003 Torr; Flow reactor; Green chemistry; chemoselective reaction;83%
With sodium tetrahydroborate; Octanoic acid; boron trifluoride diethyl etherate 1.) triglyme, 1 h, RT; 2.) triglyme, 210 deg C 1 h; Yield given. Multistep reaction;
6008-84-0

2-hexyl-1,3-dithiolane

688-73-3

tri-n-butyl-tin hydride

A

74-84-0

ethane

B

142-82-5

n-heptane

C

4808-30-4

bis(tributyltin)sulfide

Conditions
ConditionsYield
2,2'-azobis(isobutyronitrile) In neat (no solvent) at 80℃; for 1.5h; Product distribution;A n/a
B 80%
C n/a

Na(1+)*Ga(CH2CH2(CH2)4CH3)4(1-)=NaGa((CH2)6CH3)4

A

sodium gallate

B

142-82-5

n-heptane

Conditions
ConditionsYield
With water In hydrogenchloride hydrolyzed with 10% HCl;;A n/a
B 80%
117-80-6

2,3-Dichloro-1,4-naphthoquinone

286471-09-8

2-hydroxy-2'-nitro-4'-trifluoromethyl-3-α-cumyl-5-tert-octylazobenzene

A

2-cumyl(1,1,3,3-tetramethyl-butyl)-6-[(5'-trifluoromethyl)-4,5-benzo-1,2,3-triazol-2-yl]-phenol

B

142-82-5

n-heptane

Conditions
ConditionsYield
With sodium hydroxide In butanol, 2-; butanone Heating / reflux;A 79.1%
B n/a
124-07-2

Octanoic acid

A

592-76-7

1-Heptene

B

142-82-5

n-heptane

C

124-13-0

Octanal

Conditions
ConditionsYield
With palladium on silica gel; hydrogen at 245℃; under 760.051 Torr; for 4h; Temperature; Flow reactor;A 12%
B 70%
C 18%
629-06-1

1-Chloroheptane

1631-73-8

trimethylstannane

4111-54-0

lithium diisopropyl amide

A

142-82-5

n-heptane

B

661-69-8

hexamethyldistannane

C

59344-40-0

trimethyl(n-heptyl)tin

Conditions
ConditionsYield
In diethyl ether; cyclohexane 1-chloroheptane (1 equiv.) and TMTH (2 equiv.) in Et2O cooled to 0°C under Ar, LDA (1 equiv., 1.6 M soln. in cyclohexane) dropped in, stirred for 20-25 min at room temp., quenched with water; analyzed by GC;A 2%
B 68%
C 27%
In hexane; cyclohexane 1-chloroheptane (1 equiv.) and TMTH (2 equiv.) in hexane cooled to 0°C under Ar, LDA (1 equiv., 1.6 M soln. in cyclohexane) dropped in, stirred for 20-25 min at room temp., quenched with water; analyzed by GC;A 9%
B 65%
C 32%
In hexane; cyclohexane 1-chloroheptane (5 equiv.) and TMTH (2 equiv.) in hexane cooled to 0°C under Ar, LDA (1 equiv., 1.6 M soln. in cyclohexane) dropped in, stirred for 20-25 min at room temp., quenched with water; analyzed by GC;A 8%
B 34%
C 63%
In diethyl ether; cyclohexane 1-chloroheptane (5 equiv.) and TMTH (2 equiv.) in Et2O cooled to 0°C under Ar, LDA (1 equiv., 1.6 M soln. in cyclohexane) dropped in, stirred for 20-25 min at room temp., quenched with water; analyzed by GC;A 2%
B 42%
C 56%
67-66-3

chloroform

44767-62-6

n-hexylmagnesium chloride

A

142-82-5

n-heptane

B

629-50-5

Tridecane

C

7225-66-3

7-hexyltridecane

Conditions
ConditionsYield
With C31H37ClN3NiO2(1-)*Li(1+) In tetrahydrofuran at 25℃; for 0.333333h; Inert atmosphere;A 9.3%
B 65.2%
C 21.4%
With C31H37ClFeN3O2 In tetrahydrofuran at 25℃; for 0.0833333h; Inert atmosphere;
142-82-5

n-heptane

16928-01-1

1-(3-(tert-butyl)-4-hydroxyphenyl)ethan-1-one

153356-10-6

1-(5-bromo-3-tert-butyl-4-hydroxyphenyl)ethanone

Conditions
ConditionsYield
With N-Bromosuccinimide; sodium thiosulfate In water; acetonitrile99.1%

[(ethyl acetate)3Mn6(O)2Piv10(2,4,4,5,5-pentamethyl-4,5-dihydro-1H-imidazolyl-3-oxide-1-oxyl)Mn6(O)2Piv10(ethyl acetate)3]

142-82-5

n-heptane

38987-16-5

4,4,5,5-tetramethylimidazoline-1-oxyl-2-p-pyridyl-3-oxide

[Mn6(O)2Piv10(4,4,5,5-tetramethyl-2-(pyridine-4'-yl)-4,5-dihydro-1H-imidazolyl-3-oxide-1-oxyl)4]*0.5C7H16

Conditions
ConditionsYield
With heptane In dichloromethane Mn-compound dissolved under stirring in CH2Cl2; carefully dropped through a glass filter into a soln. of imidazole ligand in CH2Cl2; heptane added without stirring; stored at room temp. for a few days; filtered off; washed with cold heptane; dried in air; elem. anal.;95%
142-82-5

n-heptane

(μ-aqua)tetrakis(pivalato)tetrakis(pivalic acid)dicobalt

2-(2-hydroxy-3-methoxy-5-nitrophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl

C58H94Co3N6O24*C7H16

Conditions
ConditionsYield
In acetone at 20℃; for 48h;90%
425370-02-1

tetrakis(acetonitrile)copper(I) tetrakis(pentafluorophenyl)borate

142-82-5

n-heptane

1198105-19-9

2-(1H-imidazol-4-yl)-N,N-bis((pyridin-2-yl)methyl)ethanamine

[(2-(1H-imidazol-4-yl)-N,N-bis((pyridin-2-yl)methyl)ethanamine)Cu]B(C6F5)4*0.33(heptane)

Conditions
ConditionsYield
In tetrahydrofuran (inert atm.), Schlenk techniques; dissolving C17H19N5 and copper complexin C4H8O, stirring for 1 h at room temp.; filtration, pptn. by addn. of heptane, decantation, washing with heptane, drying under vacuum;88%

copper(II) hexafluoro-2,4-pentanedionate

142-82-5

n-heptane

1-methyl-4-(4,4,5,5-tetramethyl-3-oxide-1-oxyl-4,5-dihydro-1-H-imidazol-2-yl)-1H-pyrazole

[Cu(hexafluoroacetylacetonate)2]3(4,4,5,5-tetramethyl-2-(1-methyl-1H-pyrazol-4-yl)-imidazoline-3-oxide-1-oxyl)2*heptane

Conditions
ConditionsYield
In n-heptane dissolving ligand and 1.5 equiv. of Cu complex in heptane with heating to 50°C; filtration, slow cooling to room temp., filtration, washing the crystalswith cold heptane, drying in air; elem. anal.;87%
142-82-5

n-heptane

[(η5-pentamethylcyclopentadienyl)(NO)(neopentyl)(η3-CH2CHCHPh)]

[(η5-pentamethylcyclopentadienyl)(NO)(n-heptyl)(η3-CH2CHCHPh)]

Conditions
ConditionsYield
In n-heptane byproducts: CMe4; (N2); using Schlenk techniques; stirring of mixt. of W(C5Me5)(CH2CMe3)(NO)(CH2CHCHPh) and n-heptane at 55°C for 3 ds; removal of solvent under reduced pressure, dissolving in pentane, transferring to the top of alumina column, deluting with 2:1 mixt. of pentane and Et2O, removal of solvents under vac., crystn. from pentane at -30°C overnight;87%
91-01-0

1,1-Diphenylmethanol

142-82-5

n-heptane

[bis-5,5'-(1,3-propanediyldiimino)-2,2-dimethyl-4-hexene-3-onato]samarium[bis(trimethylsilyl)amido]

bis-5,5'-(1,3-propanediyldiimino)-2,2-dimethyl-4-hexene-3-one benzhydrol samarium(III) dimer heptane solvate

Conditions
ConditionsYield
In toluene under dry N2 atm. using Schlenk techniques; Sm complex dissolved in dry toluene; benzhydrol dissolved in toluene added with stirring; mixt. stirred at reflux overnight; cooled to ambient temp.; soln. concd. (vac.); solid recrystd. (heptane); crystals were obtained after 1 wk at -18°C; elem. anal.;85.6%
109-99-9

tetrahydrofuran

neodymium(III) chloride

110-54-3

hexane

142-82-5

n-heptane

(N-mesityl-6-(2,4,6-triisopropylphenyl)pyridine-2-aminide)Li(OEt)2

{[(N-mesityl-6-(2,4,6-triisopropylphenyl)pyridine-2-aminide)Nd(THF)](μ2-Cl)3Li(THF)2}2

Conditions
ConditionsYield
Stage #1: tetrahydrofuran; neodymium(III) chloride; (N-mesityl-6-(2,4,6-triisopropylphenyl)pyridine-2-aminide)Li(OEt)2 at 20℃; for 24h; Schlenk technique;
Stage #2: hexane; n-heptane In tetrahydrofuran Schlenk technique;
85%
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    N-HEPTANE

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    N-Heptane 97%,99%,99.9%,99.99%min

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    Identification: Chemical Name: N-Heptane Synonyms: Normal heptane, Heptane CAS No.: 142-82-5 Molecular formula: C7H16 Application: It is widely used for the production of rubber and plastic, tyre, painting material, dyestuff, printing ink

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    N-Heptane

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Chemistry

Molecule structure of Heptane (CAS NO.142-82-5):

IUPAC Name: Heptane 
Molecular Weight: 100.20194 g/mol
Molecular Formula: C7H16 
Density: 0.695 g/cm3 
Melting Point: −91 °C(lit.)
Boiling Point: 98.8 °C at 760 mmHg 
Flash Point: 30 °F
Index of Refraction: 1.394
Molar Refractivity: 34.47 cm3
Molar Volume: 144 cm3
Surface Tension: 21.6 dyne/cm
Enthalpy of Vaporization: 31.77 kJ/mol
Vapour Pressure: 45.2 mmHg at 25 °C 
Storage Temp.: 2-8 °C
Water Solubility: practically insoluble
Stability: Stable. Incompatible with oxidizing agents, chlorine, phosphorus. Highly flammable. Readily forms explosive mixtures with air.
XLogP3: 4.4
Rotatable Bond Count: 4
Exact Mass: 100.125201
MonoIsotopic Mass: 100.125201
Canonical SMILES: CCCCCCC
InChI: InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
InChIKey: IMNFDUFMRHMDMM-UHFFFAOYSA-N
EINECS: 205-563-8
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Uses

 Heptane (CAS NO.142-82-5) (and its many isomers) is widely used in laboratories as a totally non-polar solvent. It is ideal for transport and storage as a liquid. Heptane is used to dissolve the oil spot to show the previous presence of organic compounds on a stained paper in the grease spot test. Heptane is commercially available as the rubber cement solvent "Bestine" and the outdoor stove fuel "Powerfuel" by Primus.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LC inhalation > 17937ppm/4H (17937ppm)   National Technical Information Service. Vol. OTS0556754,
human TCLo inhalation 1000ppm/6M (1000ppm) BEHAVIORAL: "HALLUCINATIONS, DISTORTED PERCEPTIONS" "U.S. Bureau of Mines Report of Investigation No. 2979," Patty, F.A., and W.P. Yant, 1929Vol. 2979, Pg. -, 1929.
mouse LCLo inhalation 59gm/m3/41M (59000mg/m3) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Biochemische Zeitschrift. Vol. 115, Pg. 235, 1921.
mouse LD50 intravenous 222mg/kg (222mg/kg)   Journal of Pharmaceutical Sciences. Vol. 67, Pg. 566, 1978.
rat LC50 inhalation 103gm/m3/4H (103000mg/m3)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 32(10), Pg. 23, 1988.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Hazard Codes: FlammableF, HarmfulXn, DangerousN
Risk Statements: 11-38-50/53-65-67 
R11:Highly flammable. 
R38:Irritating to skin. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R65:Harmful: may cause lung damage if swallowed. 
R67:Vapours may cause drowsiness and dizziness.
Safety Statements: 9-16-29-33-60-61-62-23 
S9:Keep container in a well-ventilated place. 
S16:Keep away from sources of ignition. 
S29:Do not empty into drains. 
S33:Take precautionary measures against static discharges. 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets. 
S62:If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. 
S23:Do not breathe vapour.
RIDADR: UN 1206 3/PG 2
WGK Germany: 3
RTECS: MI7700000
F: 3-10
HazardClass: 3
PackingGroup: II
Poison by intravenous route. Mildly toxic by inhalation. Human systemic effects by inhalation: hallucinations. Narcotic in high concentrations. A volatile, flammable liquid when exposed to heat or flame. Can react vigorously with oxidizing materials. Moderately explosive when exposed to heat or flame. Violent reaction with phosphorus + chlorine. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes.

Standards and Recommendations

OSHA PEL: TWA 400 ppm; STEL 500 ppm
ACGIH TLV: TWA 400 ppm; STEL 500 ppm
DFG MAK: 500 ppm (2100 mg/m3)
NIOSH REL: TWA (Alkanes) 350 mg/m3
DOT Classification:  3; Label: Flammable Liquid

Analytical Methods

For occupational chemical analysis use NIOSH: Hydrocarbons, Bp: 36–126°C, 1500.

Specification

 Heptane (CAS NO.142-82-5) is also named as AI3-28784 ; Dipropyl methane ; Dipropylmethane ; Eptani ; Eptani [Italian] ; Gettysolve-C ; HSDB 90 ; Heptan ; Heptan [Polish] ; Heptanen ; Heptanen [Dutch] ; Heptyl hydride ; NSC 62784 ; Skellysolve C ; UNII-456148SDMJ ; n-Heptane . Heptane (CAS NO.142-82-5) is colourless liquid with a petroleum-like odor.It is insoluble in water. It is highly flammable. Heptane is incompatible with strong oxidizers. It is not irritating to eyes, nose or throat. If inhaled, will cause coughing or difficult breathing. The liquid of Heptane is irritating to skin and eyes. If swallowed, will cause nausea or vomiting. Flashback along vapor trail may occur. Vapor may explode if ignited in an enclosed area.

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