Heptane

From NOWA-CL
Revision as of 02:48, 4 December 2024 by Admin (talk | contribs) (Created page with "{{Compound |chemf=C7H16 |mm=100.21 |density=0.6795 |mp=-90.549 |bp=98.38 |sol_aq=0.003 |stp_p=liquid |stp_q=clear |nfpa_h=1|nfpa_f=3 |ior=1.3855 |fv=44.566 |solvent=np}} ==Uses== {{Justify}} ===Other=== * Fuel * Solvent * General Anesthetic? ==Natural occurrence== * '''Does''' occur naturally in Pinus jeffreyi and Pittosporum resiniferum ==Hazards== {|class=wikitable |+ Physiological response of persons exposed for short periods to paraffin hydrocarbon vapors<re...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
 
Heptane
Chemical formula C7H16
OTP appearance clear liquid 
Index of refraction 1.3855 
Molar Mass(g/mol) 100.21 
Density(g/cc) 0.6795 
Melting Point(°C) -90.549 
Boiling Point(°C) 98.38 
Fuel Value(MJ/kg) 44.566 
Solubility in water(g/L) 0.003
NFPA 704
NFPA704.png
3
1
0
 

Uses

Justification Questioned

Other

  • Fuel
  • Solvent
  • General Anesthetic?

Natural occurrence

Hazards

Physiological response of persons exposed for short periods to paraffin hydrocarbon vapors[1]
Substance Concentration in air Duration Symptoms
Propane ≤1% 10 None
10 2 Distinct vertigo
Butane ≤1% 10 Drowsiness
Pentane ≤0.5% 10 None
Hexane 0.2% 10 None
0.5% 10 Marked vertigo
Heptane 0.1% 6 Slight virtigo
0.2% 4 Slight vertigo
0.35 4 Moderate vertigo
0.5 4 Marked vertigo, inability to walk straight, hilarity
0.5 7 Marked vertigo, incoordination of space, hilarity
0.5 15 Marked vertigo and incoordination; hilarity lasting for 30 minutes after exposure

According to this document

Production

Extraction

Synthesis

Testing

Purification

  1. Wash with alkaline potassium permanganate
  2. Wash with concentrated sulfuric acid
  3. Wash with sodium hydroxide
  4. Redistill

Storage

Disposal

See Also

References

  1. Patty, FA; Yant, WP (1929) "Odor intensity and symptoms produced by commercial propane, butane, pentane, hexane, and heptane vapor."
    Report of Investigations No. 2979(December); pp1-10. US Department of Commerce, U.S. Bureau of Mines
    link courtesy HathiTrust.