Ethylene carbonate

88.06210

88.06

202-510-0

RGJ96TB7R7

16568|11801

DTXSID2026600

Monoclinic plates|Colorless solid or liquid|Solid at room temperature.|Colorless liquid or crystalline solid.

2920909090

35.53000

0.3

DryPowder; Liquid; OtherSolid; WetSolid

1.3214 g/cm³ @ Temp: 39 °C

36.4 °C

248 °C

150ºC

1.4148 (50ºC)

H2O: 214 g/L (20 ºC);Insoluble in gasoline and turpentine oil.

Store in a cool, dry place. Store in a tightly closed container.

0.02 mm Hg ( 36.4 °C)

3.04 (vs air)

LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg

Odorless

Hydrolysis of ethylene carbonate yields pure ethylene glycol.|It has a high solvency for polyacrylonitrile, polyamides, glycol terephthalates, and poly(vinyl chloride).|Stable under normal storage conditions. It shows little change in freezing point, nor is the "water white" color deepened when stored at 40 °C for 2 months, even in the presence of traces of acid or alkali. The dry ester is slowly decomposed at 200-250 °C. It hydrolyzes rapidly above 125 °C in the presence of alkalies and more slowly in the presence of strong acids. Pure ethylene carbonate is stable in the presence of water at 100 °C. Salts such as sodium chloride accelerate hydrolysis. Alkalies and strong acids cause rapid hydrolysis.

-1.08X10+9 J/k mol

Critical temperature: /533 °C/ 806.00 K; Critical pressure: 6.77X10+6 Pa

NONH for all modes of transport

1

R41

S26-S39

FF9550000

Xi

Stable. Incompatible with strong oxidizing agents, acids, bases, reducing agents.

P260-P301 + P312 + P330-P305 + P351 + P338

H302-H319-H373

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.

Combustible when exposed to heat or flame; can react with oxidizing materials.

|Danger|H302 (55.68%): Harmful if swallowed [Warning Acute toxicity, oral]|P260, P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P310, P312, P314, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 544 companies from 19 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Combustible when exposed to heat or flame; can react with oxidizing materials.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

A skin and eye irritant.

This action promulgates standards of performance for equipment leaks of Volatile Organic Compounds (VOC) in the Synthetic Organic Chemical Manufacturing Industry (SOCMI). The intended effect of these standards is to require all newly constructed, modified, and reconstructed SOCMI process units to use the best demonstrated system of continuous emission reduction for equipment leaks of VOC, considering costs, non air quality health and environmental impact and energy requirements. Ethylene carbonate is produced, as an intermediate or a final product, by process units covered under this subpart.

LD50 Rat oral 10 g/kg

Ethylene carbonate's production and use as a solvent for many polymers and resins, plasticizer, intermediate for pharmaceuticals, rubber chemicals, textile finishing agents, and also in hydroxyethylation reactions(1) may result in its release to the environment through various waste streams(SRC).

TERRESTRIALFATE: Based on a classification scheme(1), an estimated Koc value of 9.2(SRC), determined from a structure estimation method(2), indicates that ethylene carbonate is expected to have very high mobility in soil(SRC). Volatilization of ethylene carbonate from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 2.74X10-4 atm-cu m/mole(3,SRC), using a fragment constant estimation method(3), ethylene carbonate is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 9.80X10-3 mm Hg(4). Ethylene carbonate achieved 64.1 percent of its theoretical BOD using an activated sludge inoculum during a 2 week incubation period(5), suggesting biodegradation in soil will be an important environmental fate process(SRC).|AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 9.2(SRC), determined from a structure estimation method(2), indicates that ethylene carbonate is not expected to adsorb to suspended solids and sediment in water(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 2.74X10-4 atm-cum/mole(4,SRC), developed using a fragment constant estimation method(4). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 3 and 110 hours, respectively(SRC). Ethylene carbonate achieved 64.1 percent of its theoretical BOD using an activated sludge inoculum during a 2 week incubation period(8), suggesting biodegradation in water will be an important process(SRC). Ethylene carbonate is expected to undergo hydrolysis due to the presence of hydrolyzable functional groups(3). According to a classification scheme(5), an estimated BCF of 3.2(SRC), from an estimated log Kow of -0.34(6) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is low.|ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), ethylene carbonate, which has a vapor pressure of 9.80X10-3 mm Hg at 25 °C(3), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase ethylene carbonate 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 160 hours(SRC), calculated from its rate constant of 2.4X10-12 cu cm/molecule-sec at 25 °C(2) determined using a structure estimation method(2). Ehtylene carbonate may also undergo direct photolysis in the environment since this compound contains a functional group that can absorb light >290 nm(4).

The rate constant for the vapor-phase reaction of ethylene carbonate with photochemically-produced hydroxyl radicals has been estimated as 2.4X10-12 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 160 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). Ethylene carbonate is expected to undergo hydrolysis due to the presence of hydrolyzable functional groups(2). It may also undergo direct photolysis in the environment since this compound contains a functional group that can absorb light >290 nm(2).

An estimated BCF of 3.2 was calculated for ethylene carbonate(SRC), using an estimated log Kow of -0.34(1,SRC) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low.

Using a structure estimation method based on molecular connectivity indices(1), the Koc for ethylene carbonate can be estimated to be 9.2(SRC). According to a classification scheme(2), this estimated Koc value suggests that ethylene carbonate is expected to have very high mobility in soil.

The Henry's Law constant for ethylene carbonate is estimated as 2.74X10-4 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that ethylene carbonate is expected to volatilize from water surfaces(2). 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)(2) is estimated as 3 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 110 hours(SRC). ethylene carbonate's Henry's Law constant(1) indicates that volatilization from moist soil surfaces is expected to occur(SRC). Ethylene carbonate is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 9.80X10-3 mm Hg(3).

NIOSH (NOES Survey 1981-1983) has statistically estimated that 4,051 workers (573 of these are female) are potentially exposed to ethylene carbonate in the US(1). Occupational exposure to ethylene carbonate may occur through inhalation and dermal contact with this compound at workplaces where ethylene carbonate is produced or used(SRC).

Male Fischer-344-rats were given 200 mg/kg (14)C labeled ethylene-carbonate or 141 mg/kg radiolabeled ethylene-glycol by gavage. Ethylene-glycol was the only ethylene-carbonate metabolite detected. Peak blood ethylene-carbonate and ethylene-glycol concentrations in rats dosed with ethylene-carbonate were 0.028 and 2.3 umol/g, respectively. The respective half lives were 0.25 and 2 hours. The peak blood ethylene-glycol concentration in ethylene-glycol dosed rats was 1.1 umol/g. The half life was 3 hours.

Fractionally distilled ethylene carbonate three times in a column of single-turn glass helices under 3 torr. Analysis by NMR, VPC, and IR showed no detectable impurities.

Basic Treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 l/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary. For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml [kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . /Ethylene glycol, glycols, and related compounds/|Advanced Treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious or in respiratory arrest. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start an IV with D5W /SRP: "To keep open", minimal flow rate/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. Consider drug therapy for pulmonary edema ... . Consider vasopressors to treat hypotension without signs of hypovolemia ... . Treat seizures with diazepam (Valium) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Ethylene glycol, glycols, and related compounds/

1,3-dioxolan-2-one

...purified ethylene carbonate for dielectric constant and dipole moment studies by fractional distillation at reduced pressure and fractional crystallizations from dry ethyl ether.|...studied a process for the continuous purification of cyclic ethylene carbonate by continuous crystallization in a column with thermal gradient; the product was 99.93%.|...purified a commercially available /ethylene carbonate/ by the zone refining method...|...purified ethylene carbonate...by a sequence of fractional freezings under a nitrogen atmosphere until a constant maximum freezing point was obtained.|...purified commercial ethylene carbonate...by distilling several times at 5 Torr.

Adhesive manufacturing|1,3-Dioxolan-2-one: ACTIVE|When 12 yr old Muscat Bailey A grapevines in a greenhouse were sprayed with either 0.0016 M ethylene carbonate, 10 ppm diuron, 0.001 M Ca EDTA, 0.000015 M rutin, 0.001 M CaCO3, or 0.001 M K2CO3 on July 31, the proportion of berries with complete coloration on August 27 increased from 10% of the control to approx 40 with ethylene carbonate or diuron, approx 35 with Ca EDTA, 30 with rutin, and approx 20 with K2CO3 or CaCO3. Data on Kyoho grapes are also reported. Sugar content was not affected.

Cosmetics -> Solvent