ジメチルアセタール

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

General First Aid:

If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped or safely confined. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Use "alcohol" foam, dry chemical or carbon dioxide. Cool all affected containers with flooding quantities of water. Do not extinguish fire unless flow can be stopped. Apply water from as far a distance as possible. Keep run-off water out of sewers and water sources.

Evacuation: If fire becomes uncontrollable or container is exposed to direct flame - consider evacuation of one-third (1/3) mile radius.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.

Personnel protection: Avoid breathing vapors. Keep upwind. ... Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amount of water or soap and water. If contact with the material anticipated, wear appropriate chemical protective clothing.

Evacuation: ... If material leaking (not on fire) consider evacuation from downwind area based on amount of material spilled, location and weather conditions.

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

Immediate precautionary measure

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

Personnel protection: ... Wear positive pressure self-contained breathing apparatus. ... Wear appropriate chemical protective gloves, boots and goggles.

TERRESTRIAL FATE: Based on a recommended classification scheme(1), an estimated Koc value of 1(SRC), determined from a structure estimation method(2), indicates that 1,1-dimethoxyethane will have very high mobility in soil(SRC). Volatilization of 1,1-dimethoxyethane may be important from moist soil surfaces(SRC) given an estimated Henry's Law constant of 6.7X10-5 atm-cu m/mole(3,SRC), and from dry soil surfaces(SRC), based on an experimental vapor pressure of 171 mm Hg(4). According to one study, 1,1-dimethoxyethane shows a slight ability to support growth for an organism isolated from soil enriched with triethylene glycol(5).

AQUATIC FATE: Based on a recommended classification scheme(1), an estimated Koc value of 1(SRC), determined from a structure estimation method(2), indicates that 1,1-dimethoxyethane would not adsorb to suspended solids and sediment(SRC) in the water. 1,1-Dimethoxyethane would volatilize from water surfaces based on an estimated Henry's Law constant of 6.7X10-5 atm-cu m/mole(SRC), developed using a fragment constant estimation method(3). Estimated half-lives for a model river and model lake are 15 hours and 7.5 days, respectively(4,SRC). An estimated BCF value of 0.86(4,SRC), from an estimated log Kow(5,SRC), suggests that 1,1-dimethoxyethane will not bioconcentrate in aquatic organisms(SRC) according to a recommended classification scheme(6). According to one study, 1,1-dimethoxyethane shows a slight ability to support growth for an organism isolated from soil enriched with trietylene glycol(7).

ATMOSPHERIC FATE: According to a suggested classification scheme(1), an experimental vapor pressure of 171 mm Hg at 25 °C(2) indicates that 1,1-dimethoxyethane will exist in the vapor phase in the ambient atmosphere. Vapor-phase 1,1-dimethoxyethane is degraded in the atmosphere by reaction with photochemically produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be about 43 hours(3,SRC). Vapor-phase 1,1-dimethoxyethane may be physically removed from the air by wet deposition because of its high water solubilty(4).

Using a structure estimation method based on molecular connectivity indexes(1), the Koc for 1,1-dimethoxyethane can be estimated to be about 1(SRC). According to a recommended classification scheme(2), this estimated Koc value suggests that 1,1-dimethoxyethane has very high mobility in soil(SRC).

1,1-Dimethoxyethane's production and use in medicine(1), organic synthesis(1), in Mering's mixture (2 vol 1,1-dimethoxyethane and 1 vol chloroform)(2), and as a flavoring ingredient(3) may result in its release to the environment through various waste streams(SRC).

An estimated BCF value of 0.86 was calculated for 1,1-dimethoxyethane(SRC), using an estimated log Kow of 0.22(1,SRC) and a recommended regression-derived equation(2). According to a recommended classification scheme(3), this BCF value suggests that bioconcentration in aquatic organisms will be an low(SRC).

The Henry's Law constant for 1,1-dimethoxyethane is estimated as 6.7X10-5 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This value indicates that 1,1-dimethoxyethane will volatilize from water surfaces(2,SRC). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec) is estimated as approximately 15 hours(2,SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec) is estimated as approximately 7.5 days(2,SRC). 1,1-Dimethoxyethane's high vapor pressure, 171 mm Hg(3) indicates that volatilization from dry soil may occur(SRC). 1,1-Dimethoxyethane's Henry's Law constant(1,SRC) indicates that volatilization from moist soil may also occur(SRC).

Irritant effects to rabbit: slight skin, moderate eye. /From table/

Inhalation toxicity to rat: at 16,000 ppm for 4 hours the mortality was 3/6. /From table/

The rate constant for the vapor-phase reaction of 1,1-dimethoxyethane with photochemically produced hydroxyl radicals has been experimentally determined to be 8.89X10-12 cu cm/molecule-sec at 25 °C(1). This corresponds to an atmospheric half-life of about 43 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1,SRC).