아세트산4-메틸-2-펜틸에스테르

Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:

Use water spray, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

Fresh air, rest.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth.

· 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 NIOSH Pocket Guide for sec-Hexyl acetate:

General First Aid:

(General first aid procedures)

If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide.

1. REMOVE ALL IGNITION SOURCES. 2. VENTILATE AREA OF SPILL OR LEAK. 3. FOR SMALL QUANTITIES, ABSORB ON PAPER TOWELS. EVAPORATE IN A SAFE PLACE (SUCH AS A FUME HOOD). ALLOW SUFFICIENT TIME FOR EVAPORATING VAPORS TO COMPLETELY CLEAR THE HOOD DUCTWORK. BURN THE PAPER IN A SUITABLE LOCATION AWAY FROM COMBUSTIBLE MATERIALS.LIQUID SEC-HEXYL ACETATE SHOULD NOT BE ALLOWED TO ENTER A CONFINED SPACE, SUCH AS A SEWER, BECAUSE OF THE POSSIBILITY OF AN EXPLOSION.

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.

1. BY ABSORBING IT IN VERMICULITE, DRY SAND, EARTH OR SIMILAR MATERIAL AND DISPOSING IN A SECURED SANITARY LANDFILL. 2. BY ATOMIZING IN A SUITABLE COMBUSTION CHAMBER.

Spray into the furnace. Incineration will become easier by mixing with a more flammable solvent.

TERRESTRIAL FATE: Based on a recommended classification scheme(1), an estimated Koc value of 700(SRC), determined from an estimated log Kow of 2.7(2,SRC) and a recommended regression-derived equation(3), indicates that 4-methyl-2-pentyl acetate is expected to have low mobility in soil(SRC). Volatilization of 4-methyl-2-pentyl acetate from moist soil surfaces is expected to be important(SRC) given an estimated Henry's Law constant of 5.8X10-4 atm-cu m/mole at 20 °C(SRC) from its experimental values for vapor pressure, 4.0 mm Hg(4), and water solubility, 1.3X10+3 mg/l(4). The potential for volatilization of 4-methyl-2-pentyl acetate from dry soil surfaces may exist(SRC) based upon its measured vapor pressure(4). Volatilization is expected to be attenuated by adsorption(SRC). Biodegradation of 4-methyl-2-pentyl acetate in soil may be important(SRC), based upon its biodegradation in aerobic screening tests(5).

AQUATIC FATE: Based on a recommended classification scheme(1), an estimated Koc value of 700(SRC), determined from an estimated log Kow of 2.7(2,SRC) and a recommended regression-derived equation(3), indicates that 4-methyl-2-pentyl acetate is expected to adsorb to suspended solids and sediment in water(SRC). 4-Methyl-2-pentyl acetate is expected to volatilize from water surfaces(3,SRC) based on an estimated Henry's Law constant of 5.8X10-4 atm-cu m/mole at 20 °C(SRC) from its experimental values for vapor pressure, 4.0 mm Hg(4), and water solubility, 1.3X10+3 mg/l(4). Estimated volatilization half-lives for a model river and model lake are 5.3 hours and 5.3 days, respectively(3,SRC). Adsorption is expected to attenuate volatilization(SRC). According to a classification scheme(5), an estimated BCF of 66(3,SRC), from an estimated log Kow(2,SRC), suggests that bioconcentration in aquatic organisms is moderate, not high(SRC). 4-Methyl-2-pentyl acetate is expected to biodegrade in aquatic systems(SRC). In aerobic screening tests using an unacclimated sewage seed, 4-methyl-2-pentyl acetate reached 20, 87, 62 and 69% of its theoretical BOD in freshwater and 11, 22, 52, and 67% of its theoretical BOD in synthetic seawater after 5, 10, 15, and 20 days, respectively(6). Estimated hydrolysis half-lives of 78 and 7.8 years at pHs 7 and 8, respectively(7), indicate that hydrolysis is not expected to be an important process(SRC).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 4-methyl-2-pentyl acetate, which has a measured vapor pressure of 4 mm Hg at 20 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 4-methyl-2-pentyl acetate 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 2.0 days(3,SRC).

The substance can be absorbed into the body by inhalation of its vapour.

inhalation, ingestion, skin and/or eye contact

Cough. Sore throat.

Redness.

Redness.

irritation eyes, skin, nose, throat; headache; In Animals: narcosis

Employees should be screened for history of certain medical conditions which might place the employee at increased risk from sec-hexyl acetate exposure. /These are/ kidney disease ... chronic respiratory disease ... liver disease ... /and/ skin disease. ... Any employee developing /these/ conditions should be referred for further medical examination.

The Koc of 4-methyl-2-pentyl acetate is estimated as approximately 700(SRC), using an estimated log Kow of 2.7(1,SRC) and a regression-derived equation(2,SRC). According to a recommended classification scheme(3), this estimated Koc value suggests that 4-methyl-2-pentyl acetate is expected to have low mobility in soil(SRC).

Symptoms Following Exposure: Headache, dizziness, nausea, irritation to respiratory passages.

THERE ARE NO REPORTS OF SYSTEMIC INJURY BY.../HEXYL ACETATE/...

... Human subjects exposed to sec-hexyl acetate noted irritation of the eyes and upper respiratory tract and an unpleasant odor and taste at 100 ppm.

In aerobic screening tests using an unacclimated sewage seed, 4-methyl-2-pentyl acetate reached 20, 87, 62 and 69% of its theoretical BOD after 5, 10, 15, and 20 days, respectively in freshwater(1). In aerobic screening tests using synthetic seawater with added raw wastewater, 4-methyl-2-pentyl acetate reached 11, 22, 52, and 67% of its theoretical BOD after 5, 10, 15, and 20 days, respectively(1).

An estimated BCF of 66 was calculated for 4-methyl-2-pentyl acetate(SRC), using an estimated log Kow of 2.7(1,SRC) and a recommended regression-derived equation(2). According to a classification scheme(3), this BCF suggests that bioconcentration in aquatic organisms is moderate, not high(SRC).