109-87-5
Product Name:
Dimethoxymethane
Formula:
C3H8O2
Synonyms:
Dimethoxymethane;Formal, Methylal, Dimethoxymethane;Formaldehyde dimethyl acetal;Methylal
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Methylal appears as a clear colorless liquid with a chloroform-like odor. Flash point 0 °F. Boiling point 42.3 °C. Density 0.864 g / cm3 at 68 °F (20 °C). Vapors heavier than air. |
|---|---|
| Color/Form | COLORLESS, CLEAR LIQUID |
| Odor | CHLOROFORM ODOR |
| Taste | PUNGENT TASTE |
| Boiling Point | 108 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -157 °F (USCG, 1999) |
| Flash Point | 0 °F (USCG, 1999) |
| Solubility | 33 % (NIOSH, 2023) |
| Density | 0.861 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Density | 2.6 (USCG, 1999) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 337.08 mmHg at 70 °F (USCG, 1999) |
| LogP | log Kow= 0.0 |
| Henry's Law Constant | Henry's Law constant= 1.63X10-4 atm-cu m/mole (calc). |
| Stability/Shelf Life | STABLE UNDER NEUTRAL OR ALKALINE CONDITIONS /KETALS/ |
| Autoignition Temperature | 459 °F (USCG, 1999) |
| Decomposition | DISASTER HAZARD: DANGEROUS UPON EXPOSURE TO HEAT OR FLAME ... |
| Heat of Combustion | -10,970 BTU/LB= -6,100 CAL/G= -255X10+5 JL/KG |
| Heat of Vaporization | 161.5 BTU/LB= 89.8 CAL/G= 3.76X10+5 JL/KG |
| Surface Tension | 21.1 DYNES/CM= 0.0211 NEWTON/M AT 20 °C |
| Ionization Potential | 10.00 eV |
| Refractive Index | INDEX OF REFRACTION: 1.3589 AT 18 °C/D |
| Kovats Retention Index | 511 507.5 508 505 508 505 |
| Other Experimental Properties | HYDROLYZE READILY IN PRESENCE OF ACIDS TO GENERATE ALDEHYDES /KETALS/ |
| Chemical Classes | Other Classes -> Acetals |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H225: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 | 76.09 g/mol |
|---|---|
| XLogP3 | 0.2 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 76.052429494 g/mol |
| Monoisotopic Mass | 76.052429494 g/mol |
| Topological Polar Surface Area | 18.5 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 12.4 |
| 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
Methylal appears as a clear colorless liquid with a chloroform-like odor. Flash point 0 °F. Boiling point 42.3 °C. Density 0.864 g / cm3 at 68 °F (20 °C). Vapors heavier than air.