4-Chlorostyrene

Insol in water

SOL IN BENZENE, PETROLEUM ETHER

Sol alcohol, ether, acetone

SOL IN CARBON TETRACHLORIDE

0.81 [mmHg]

0.816 mm Hg @ 25 °C

Warning

H226 (18.2%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P273, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 11 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Chemical: Benzene, 1-chloro-4-ethenyl-

Benzene, 1-chloro-4-ethenyl-: Does not have an individual approval but may be used under an appropriate group standard

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.

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 840(SRC), determined from a structure estimation method(2), indicates that p-chlorostyrene is expected to have low mobility in soil(SRC). Volatilization of p-chlorostyrene from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 2.1X10-3 atm-cu m/mole(SRC), using a fragment constant estimation method(3). The potential for volatilization of p-chlorostyrene from dry soil surfaces may exist(SRC) based upon a vapor pressure of 0.82 mm Hg(4).

AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 840(SRC), determined from a structure estimation method(2), indicates that p-chlorostyrene is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon a estimated Henry's Law constant of 2.1X10-3 atm-cu m/mole(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 2 hrs and 5 days, respectively(SRC). According to a classification scheme(5), an estimated BCF of 100(SRC), from an estimated log Kow of 3.54(6) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is moderate(SRC).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), p- chlorostyrene, which has a vapor pressure of 0.82 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere(SRC). Vapor-phase p-chlorostyrene is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals and ozone(SRC); the half-lives for these reactions in air are estimated to be 14 and 13 hrs, respectively(SRC), calculated from rate constants of 2.8X10-11 and 2.1X10-17 cu cm/molecule-sec, respectively at 25 °C(SRC) derived using a structure estimation method(3).

Using a structure estimation method based on molecular connectivity indices(1), the Koc for p-chlorostyrene can be estimated to be 840(SRC). According to a classification scheme(2), this estimated Koc value suggests that p-chlorostyrene is expected to have low mobility in soil(SRC).

An estimated BCF of 100 was calculated for p-chlorostyrene(SRC), using an estimated log Kow of 3.54(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate(SRC).

The Henry's Law constant for p-chlorostyrene is estimated as 2.1X10-3 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that p-chlorostyrene is expected to volatilize rapidly 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 2 hrs(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 5 days(SRC). p-Chlorostyrene's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of p-chlorostyrene from dry soil surfaces may exist(SRC) based upon a vapor pressure of 0.82 mm Hg(3).

The rate constant for the vapor-phase reaction of p-chlorostyrene with photochemically-produced hydroxyl radicals has been estimated as 2.8X10- 11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 14 hrs at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). The rate constant for the vapor-phase reaction of p-chlorostyrene with ozone has been estimated as 2.1X10-17 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(1). This corresponds to an atmospheric half-life of about 13 hrs at an atmospheric concentration of 7X10+11 ozone molecules per cu cm(2). p-Chlorostyrene is not expected to undergo hydrolysis in the environment due to the lack of hydrolyzable functional groups(3).

p-Chlorostyrene's production and use in the manufacture of polychlorostyrene and polyesters may result in its release to the environment through various waste streams. If released to air, a vapor pressure of 0.82 mm Hg at 25 °C indicates p-chlorostyrene will exist solely as a vapor in the ambient atmosphere. Vapor-phase p-chlorostyrene will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals and ozone; the half-lives for these reactions in air are estimated to be 14 and 13 hrs, respectively. If released to soil, p-chlorostyrene is expected to have low mobility based upon an estimated Koc of 840. Volatilization from moist soil surfaces is expected to be an important fate process based upon an estimated Henry's Law constant of 2.1X10-3 atm-cu m/mole. p-Chlorostyrene may volatilize from dry soil surfaces based upon its vapor pressure. If released into water, p-chlorostyrene is expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization from water surfaces is expected to be an important fate process based upon this compound's estimated Henry's Law constant. Estimated volatilization half-lives for a model river and model lake are 2 hrs and 5 days, respectively. An estimated BCF of 100 suggests the potential for bioconcentration in aquatic organisms is moderate. Hydrolysis is not expected to occur due to the lack of hydrolyzable functional groups. Occupational exposure to p-chlorostyrene may occur through inhalation and dermal contact with this compound at workplaces where p-chlorostyrene is produced or used. (SRC)

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. 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 ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poison A and B/

Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in respiratory arrest. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias as 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 ... . For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam (Valium) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poison A and B/

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 ... . 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 ... . /Aromatic hydrocarbons 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 ... . Treat seizures with diazepam (Valium) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Aromatic hydrocarbons and related compounds/

Irritant dose rabbit dermal 10 mg/24 hr /Chlorostyrene/

Irritant dose rabbit ocular 500 mg /Chlorostyrene/

LD50 Rat oral 5200 mg/kg /Chlorostyrene/

LD50 Rabbit percutaneous 20 g/kg /Chlorostyrene/

For more Non-Human Toxicity Values (Complete) data for P-CHLOROSTYRENE (6 total), please visit the HSDB record page.

Used to make polychlorostyrene; [HSDB]

p-Chlorostyrene is used in the manufacture of polychlorostyrene which is a clear, colorless plastic with good foaming, heat distortion and flame-retardant properties.