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Dimethoxymethane

Product NameDimethoxymethane

CAS109-87-5

MFC3H8O2

MW76.09

EINECS203-714-2

MOL File109-87-5.mol

Chemical Properties

Melting point -105 °C
Boiling point 41-43 °C
Density  0.860 g/mL at 20 °C(lit.)
vapor density  2.6 (vs air)
vapor pressure  6.38 psi ( 20 °C)
refractive index  n20/D 1.354
Flash point -18 °C
storage temp.  Store at <= 20°C.
solubility  32.3 g/100 mL (16°C)
form  Liquid
color  Clear colorless
Odor Mild, ethereal; chloroform-like.
PH pH (12.5vol % , 25℃) : 4.5~6.6
explosive limit 1.6-17.6%(V)
Water Solubility  32.3 g/100 mL (16 ºC)
Sensitive  Moisture Sensitive
Merck  14,6012
BRN  1697025
Henry's Law Constant (x 10-4 atm?m3/mol): 1.73 at 25 °C (Hine and Mookerjee, 1975)
Exposure limits NIOSH REL: TWA 1,000 ppm (3,100 mg/m3), IDLH 2,200 ppm; OSHA PEL: TWA 1,000 ppm; ACGIH TLV: TWA 1,000 ppm (adopted).
Stability Stable. Extremely flammable. Readily forms explosive mixtures with air. Note low flash point and wide explosive limits. Incompatible with strong oxidizing agents, strong acids. May form explosive peroxides upon exposure to air.
CAS DataBase Reference 109-87-5(CAS DataBase Reference)
NIST Chemistry Reference Methane, dimethoxy-(109-87-5)
EPA Substance Registry System Dimethoxymethane (109-87-5)

Safety Information

Hazard Codes  F,Xi
Risk Statements  11-19-36-36/37/38
Safety Statements  16-26-33-7/9-37/39
RIDADR  UN 1234 3/PG 2
WGK Germany  1
RTECS  PA8750000
21
Autoignition Temperature 459 °F
TSCA  Yes
HS Code  2911 00 00
HazardClass  3
PackingGroup  II
Hazardous Substances Data 109-87-5(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 6653 mg/kg
IDLA 2,200 ppm [10% LEL]

MSDS

Usage And Synthesis

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