2-Butanol CAS: 78-92-2

(±)-2-Butanol

2-Butanol;sec-Butyl alcohol;CCS 301;sec-Butanol;Ethylmethyl carbinol;2-Hydroxybutane;Methylethylcarbinol;3-Butanol;1-Methyl-1-propanol;1-Methylpropyl alcohol;s-Butanol;s-Butyl alcohol;dl-sec-Butanol;dl-Methylethylcarbinol;DL-Butan-2-ol;(±)-2-Butanol;Racemic-2-butanol;NSC 25499;15892-23-6

78-92-2

C4H10O

InChIKey=BTANRVKWQNVYAZ-UHFFFAOYSA-N

74.12

74.12

1718765

201-158-5

0112

25499

1120

DTXSID9021762

Colorless liquid

29051490

Synthetic Fragrances

20.2

0.6

Colorless Liquid

0.8063 g/cm³ @ Temp: 20 °C

-114 °C

99.5 °C

80 °F

1.393

H2O: 12.5 g/100 mL (20 ºc)

Flammables area

12.5 mm Hg ( 20 °C)

2.6 (vs air)

Oral-Rat  LD50: 6480 mg/kg; Intravenous-Mouse LD50: 764 mg/kg

It is flammable in case of open flame, high temperature, oxidant; burning produces irritating smoke; spontaneous combustion in contact with chromium trioxide

1.4-9.8%(V)

HAS A STRONG VINOUS ODOR

9.60e-12 cm3/molecule*sec

9.06e-06 atm-m3/mole|Henry's Law constant = 9.06X10-6 atm-cu m/mol @ 25 °C

pKa = 17.6

IT EXISTS AS D, L, & DL ISOMERS|Saturated concn in air: 52 g/cu m @ 20 °C; 94 g/cu m @ 30 °C|Liquid heat capacity: 0.580 BTU/lb-F at 75 °F; Liquid thermal conductivity: 0.938 BTU-inch/hr-sq ft-F at 75 °F; Ideal gas heat capacity: 0.368 BTU/lb-F at 75 °F|Ionization potential= 10 eV|For more Other Experimental Properties (Complete) data for SEC-BUTYL ALCOHOL (13 total), please visit the HSDB record page.

Highly flammable. Soluble in water.

Alcohols and Polyols

Highly Flammable

Attacks plastics. [Handling Chemicals Safely 1980. p. 236]. Acetyl bromide reacts violently with alcohols or water (Merck 11th ed. 1989). Mixtures of alcohols with concentrated sulfuric acid and strong hydrogen peroxide can cause explosions. Example: An explosion will occur if dimethylbenzylcarbinol is added to 90% hydrogen peroxide then acidified with concentrated sulfuric acid. Mixtures of ethyl alcohol with concentrated hydrogen peroxide form powerful explosives. Mixtures of hydrogen peroxide and 1-phenyl-2-methyl propyl alcohol tend to explode if acidified with 70% sulfuric acid [Chem. Eng. News 45(43):73 1967; J, Org. Chem. 28:1893 1963]. Alkyl hypochlorites are violently explosive. They are readily obtained by reacting hypochlorous acid and alcohols either in aqueous solution or mixed aqueous-carbon tetrachloride solutions. Chlorine plus alcohols would similarly yield alkyl hypochlorites. They decompose in the cold and explode on exposure to sunlight or heat. Tertiary hypochlorites are less unstable than secondary or primary hypochlorites [NFPA 491 M 1991]. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].

2-Butanol|B: Compounds that form peroxides on concentration (distillation/evaporation)|11 samples had 3 to > 1000 ppm, age > 1 yr|Kelly|An explosion occured during the distillation of a 10 yr old sample of the alcohol (the sample contained 12% peroxides). Another explosion of a 12 yr old sample occured during distillation. See Bretherick's.|Posdev, V. S. et al., Chem. Abs., 1977, 86, 194347

763 °F (406 °C) (IN AIR); 711 °F (377 °C) (IN OXYGEN)|406 °C

-15,500 BTU/lb= -8600 cal/g= -360x10+5 J/kg

10.10 eV

Lower flammable limit: 1.7% by volume at 212 °F (100 °C); Upper flammable limit: 9.8% by volume at 212 °F (100 °C)|Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.

sec-Butyl alcohol will attack some forms of plastics, rubber, and coatings.

49.72 kJ/mol @ 25 °C

Critical temperature: 536.2 K; critical pressure: 4.202 MPa