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624-65-7

Name 3-Chloropropyne
CAS 624-65-7
EINECS(EC#) 210-856-9
Molecular Formula C3H3Cl
MDL Number MFCD00000980
Molecular Weight 74.51
MOL File 624-65-7.mol
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Chemical Properties

Melting point  <-50°C
Boiling point  58 °C(lit.)
density  1.03 g/mL at 25 °C(lit.)
vapor pressure  24.08-69.52kPa at 20-50℃
refractive index  n20/D 1.456
Fp  7 °F
storage temp.  2-8°C
solubility  benzene: miscible
form  clear liquid
color  Colorless to Red to Green
Water Solubility  Not miscible or difficult to mix with water.
Merck  14,7810
BRN  506005
Dielectric constant 7.5599999999999996
Exposure limits ACGIH: TWA 20 ppm
OSHA: Ceiling 300 ppm; TWA 200 ppm
NIOSH: IDLH 500 ppm; TWA 100 ppm(375 mg/m3); STEL 150 ppm(560 mg/m3)
LogP 1.3 at 25℃
CAS DataBase Reference 624-65-7(CAS DataBase Reference)
NIST Chemistry Reference 1-Propyne, 3-chloro-(624-65-7)
EPA Substance Registry System 624-65-7(EPA Substance)
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Safety Data

Hazard Codes  F,T,C
Risk Statements 
R11:Highly Flammable.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R34:Causes burns.
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 .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S27:Take off immediately all contaminated clothing .
RIDADR  UN 3286 3/PG 2
WGK Germany  2
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29032990

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