627-19-0

Name 1-PENTYNE
CAS 627-19-0
EINECS(EC#) 210-987-1
Molecular Formula C5H8
MDL Number MFCD00009469
Molecular Weight 68.12
MOL File 627-19-0.mol
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Chemical Properties

Appearance Clear colorless to pale yellow liquid
Melting point  -106 °C
Boiling point  40 °C(lit.)
density  0.691 g/mL at 25 °C(lit.)
vapor pressure  6.8 psi ( 20 °C)
refractive index  n20/D 1.385(lit.)
Fp  -34°C
storage temp.  2-8°C
solubility  1.05g/l
form  Liquid
color  Clear colorless to pale yellow
Water Solubility  Soluble in water. (1.05 g/L) at 20°C.
Thermal Conductivity 0.127 W/(m·K) at 25 ℃
BRN  1697133
InChI 1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3
InChIKey IBXNCJKFFQIKKY-UHFFFAOYSA-N
SMILES CCCC#C
CAS DataBase Reference 627-19-0(CAS DataBase Reference)
EPA Substance Registry System 1-Pentyne (627-19-0)
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Safety Data

Symbol(GHS)  Flame (GHS02)
GHS02
Signal word  Danger
Hazard statements  H225
Precautionary statements  P210
Hazard Codes  F,Xn
Risk Statements 
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
R65:Harmful: May cause lung damage if swallowed.
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
RIDADR  UN 3295 3/PG 2
WGK Germany  3
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29012900
Storage Class 3 - Flammable liquids
Hazard Classifications Flam. Liq. 2

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