2-PENTYNE

2-PENTYNE Basic information
Product Name:2-PENTYNE
Synonyms:2-PENTYNE 98%;2-Pentyne,98+%;Valerylene;CH3C≡CCH2CH3;2-Pentyne, 98% 5GR;1-Ethyl-2-methylacetylene;C2H5CequivCCH3;ETHYLMETHYLACETYLENE
CAS:627-21-4
MF:C5H8
MW:68.12
EINECS:210-989-2
Product Categories:Miscellaneous;Acetylenes;Acetylenic Hydrocarbons;Alkynes;Internal;Organic Building Blocks
Mol File:627-21-4.mol
2-PENTYNE Structure
2-PENTYNE Chemical Properties
Melting point -109 °C (lit.)
Boiling point 56-57 °C (lit.)
density 0.71 g/mL at 25 °C (lit.)
vapor pressure 393 mm Hg ( 37.7 °C)
refractive index n20/D 1.404(lit.)
Fp −23 °F
storage temp. Flammables area
solubility soluble in Ether,Alcohol,Benzene
form Liquid
color Clear colorless to slightly yellow
Specific Gravity0.711
explosive limit1.2-8.8%(V)
BRN 1696938
CAS DataBase Reference627-21-4(CAS DataBase Reference)
Safety Information
Hazard Codes F,Xi
Risk Statements 11-36/37/38
Safety Statements 16-26-36/37/39
RIDADR UN 3295 3/PG 2
WGK Germany 3
10-23
HazardClass 3
PackingGroup II
HS Code 29012900
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
2-PENTYNE Usage And Synthesis
Chemical Propertiesclear colorless to slightly yellow liquid
Uses2-Pentyne was used to test the catalytic activity of nanoparticles of palladium supported on bacterial biomass, bio-Pd.
Safety ProfileA very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. Solutions with silver perchlorate explode on contact with mercury. When heated to decomposition it emits acrid smoke and irritating fumes.
Purification MethodsIt is stood with, then distilled at low pressure from sodium or NaBH4. [Beilstein 1 III 958, 1 IV 992.]
2,7-DIMETHYL-3,5-OCTADIYN-2,7-DIOL 4-PHENYL-3-BUTYN-2-ONE 2-HEXYNE 3-Hexyn-2,5-diol 2,4,7,9-Tetramethyl-5-decyne-4,7-diol 4-Octyne 1-Chloro-2-methyl-3-pentyn-2-ol METHYL 2-OCTYNOATE 1,1,3-Triphenylpropargyl alcohol 2,5-Dimethyl-3-hexyne-2,5-diol 2-HEXYNOIC ACID 2-PENTYNE 2-PENTYNOIC ACID 3-Nonyn-1-ol 2-OCTYNOIC ACID 3-HEXYNE METHYL 2-NONYNOATE 3,6-DIMETHYL-4-OCTYN-3,6-DIOL

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