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HomeProduct name listHEPTANOIC ANHYDRIDE

HEPTANOIC ANHYDRIDE

  • CAS NO.:626-27-7
  • Empirical Formula: C14H26O3
  • Molecular Weight: 242.35
  • MDL number: MFCD00009536
  • EINECS: 210-940-5
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-06-13 17:03:25
HEPTANOIC ANHYDRIDE Structural

What is HEPTANOIC ANHYDRIDE?

Chemical properties

clear light yellow liquid

Preparation

To a flask containing 15.8 gm (0.2 mole) of dry pyridine and 25 ml of dry benzene is rapidly added with stirring 14.8 gm (0.1 mole) of heptanoyl chloride. The reaction is only slightly exothermic and then 13.0 gm (0.1 mole) of heptanoic acid is added dropwise (5 min) causing the temperature to rise to 60-65°C. After stirring for 10 min, the solid (pyridinium hydrochloride) is quickly filtered, washed twice with 25 ml portions of dry benzene, the benzene washings concentrated under reduced pressure, and the residue distilled to afford 19-20 gm (78-83%), b.p. 155-162°C (12 mm Hg), or 170-173°C (15 min).
Preparation of Heptanoic Anhydride

Flammability and Explosibility

Non flammable

Properties of HEPTANOIC ANHYDRIDE

Melting point: -12 °C
Boiling point: 278-282 °C
Density  0.917
vapor pressure  0.22Pa at 25℃
refractive index  1.432-1.434
Flash point: 110 °C
storage temp.  Inert atmosphere,Room Temperature
form  Liquid
color  Clear light yellow
CAS DataBase Reference 626-27-7(CAS DataBase Reference)
EPA Substance Registry System Heptanoic acid, anhydride (626-27-7)

Safety information for HEPTANOIC ANHYDRIDE

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H290:Corrosive to Metals
H314:Skin corrosion/irritation
Precautionary Statement Codes P234:Keep only in original container.
P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P390:Absorb spillage to prevent material damage.
P405:Store locked up.
P406:Store in corrosive resistant/… container with a resistant inner liner.
P501:Dispose of contents/container to..…

Computed Descriptors for HEPTANOIC ANHYDRIDE

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