123-63-7
Product Name:
Paraldehyde
Formula:
C6H12O3
Synonyms:
Paraldehyde;2,4,6-Trimethyl-1,3,5-trioxane;2,4,6-Trimethyl-1,3,5-trioxacyclohexane;Paracetaldehyde;Acetaldehyde trimer
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
Physical Description | Paraldehyde appears as a clear colorless liquid with a pleasant odor. Flash point 96 °F. Melting point 54 °F. Less dense than water. Vapors are heavier than air. |
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Color/Form | COLORLESS, TRANSPARENT LIQUID |
Odor | CHARACTERISTIC AROMATIC ODOR |
Taste | DISAGREEABLE TASTE |
Boiling Point | 262 °F at 760 mmHg (NTP, 1992) |
Melting Point | 54.7 °F (NTP, 1992) |
Flash Point | 96 °F (NTP, 1992) |
Solubility | Sparingly soluble (NTP, 1992) |
Density | 0.9943 at 68 °F (USCG, 1999) - Less dense than water; will float |
Vapor Density | 4.5 |
Vapor Pressure | 11.0 [mmHg] |
LogP | 0.73 |
Stability/Shelf Life | ON EXPOSURE TO LIGHT & AIR, IT DECOMP TO ACETALDEHYDE & IS OXIDIZED TO ACETIC ACID |
Autoignition Temperature | 460 °F (USCG, 1999) |
Viscosity | 1.128 centipoise at 70 °F |
Corrosivity | ... Has solvent /like/ action upon rubber, polystyrene, & styrene-acrylonitrile copolymer |
Heat of Combustion | -5,652 cal/g (236X10+5 J/kg) at 25 °C |
Heat of Vaporization | 75 cal/g (latent heat of vaporization) |
Surface Tension | 27.82 dynes/cm |
Odor Threshold | 0.02-0.025 mg/cu m (recognition) |
Refractive Index | INDEX OF REFRACTION: 1.4049 AT 20 °C/D |
Kovats Retention Index | 755 786 763 767 767 771 786 |
Other Experimental Properties | GIVES ACETALDEHYDE ON HEATING WITH DIL HCL OR ON WARMING WITH SEVERAL DROPS CONCENTRATED H2SO4 |
Chemical Classes | Other Classes -> Aldehydes |
SAFETY INFORMATION
Signal word | Warning |
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Pictogram(s) |
Flame Flammables GHS02 |
GHS Hazard Statements |
H226:Flammable liquids |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. |
COMPUTED DESCRIPTORS
Molecular Weight | 132.16 g/mol |
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XLogP3 | 0.7 |
Hydrogen Bond Donor Count | 0 |
Hydrogen Bond Acceptor Count | 3 |
Rotatable Bond Count | 0 |
Exact Mass | 132.078644241 g/mol |
Monoisotopic Mass | 132.078644241 g/mol |
Topological Polar Surface Area | 27.7 Ų |
Heavy Atom Count | 9 |
Formal Charge | 0 |
Complexity | 63.3 |
Isotope Atom Count | 0 |
Defined Atom Stereocenter Count | 0 |
Undefined Atom Stereocenter Count | 0 |
Defined Bond Stereocenter Count | 0 |
Undefined Bond Stereocenter Count | 0 |
Covalently-Bonded Unit Count | 1 |
Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Paraldehyde appears as a clear colorless liquid with a pleasant odor. Flash point 96 °F. Melting point 54 °F. Less dense than water. Vapors are heavier than air.