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8.02971 EMD Millipore

3,4-Dihydro-2H-pyran

3,4-Dihydro-2H-pyran for synthesis. CAS 110-87-2, pH 7 (5 g/l, H₂O, 20 °C)., for synthesis

  • CAS Number 110-87-2

  • Linear Formula C₅H₈O

  • Molecular Weight 84.12 g/mol

  •  EC Number 203-810-4

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Properties

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packaging   100 ml in Glass bottle (8029710100)
bp   85.5 °C (1013 hPa)
expl. lim.     1.1 - 13.8 %(V)
vapor pressure   77.8 hPa (20 °C)
solubility   7.7 g/l
density   0.929 g/cm3 (20 °C)
flash point   -9 °C
autoignition temp.   240 °C
mp   -70 °C
pH   7 (5 g/l, H₂O, 20 °C)
LD 50 oral   LD50 Rat > 4000 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Density (d 20 °C/ 4 °C): 0.926 - 0.929
  Water (GC): ≤ 0.50 % (a/a)
  Identity (IR): passes test

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Safety & Documentation

Safety Information

HS Code 
2932 99 00
Hazard Statement(s) 
H225: Highly flammable liquid and vapour.
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H412: Harmful to aquatic life with long lasting effects.
EUH019: May form explosive peroxides.
Precautionary Statement(s) 
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240: Ground/bond container and receiving equipment.
P273: Avoid release to the environment.
P280: Wear protective gloves.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
RTECS 
UP7700000
Storage class 
3 Flammable liquids
Disposal 
1
Strongly contaminated halogen-free organic solvents: container A.
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Flammable  Flammable
Hazard Symbols 
Harmful  Harmful
Declaration (railroad and road) ADR, RID 
UN 2376 , 3, II
Declaration (transport by air) IATA-DGR 
UN 2376 , 3, II
Declaration (transport by sea) IMDG-Code 
UN 2376 , 3, II
Categories of danger 
highly flammable, irritant, harmful
R Phrase 
R 11-19-36/38-20
Highly flammable.May form explosive peroxides.Irritating to eyes and skin.Harmful by inhalation.
S Phrase 
S 16-29-43
Keep away from sources of ignition - No smoking.Do not empty into drains.In case of fire, use powder extinguisher. Never use water.
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