tert-Butylphenol

Fresh air, rest. Half-upright position. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

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

Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention .

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.

Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations.

If material not on fire and not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. /Butyl phenols, liquid/

Personnel protection: keep upwind. Avoid breathing vapors. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Avoid bodily contact with the material. /Butyl phenols, liquid/

TERRESTRIAL FATE: Based on a recommended classification scheme(1), an estimated Koc value of 1500(SRC), determined from an experimental log Kow(2) and a recommended regression-derived equation(3), indicates that 2-t-butylphenol will have low mobility in soil(SRC). Limited data, mainly derived by analogy to 4-t-butylphenol, indicate that 2-t-butylphenol may be resistant to biodegradation(SRC). 4-t-Butylphenol (at 30 mg/L) was not biodegraded over a 2 week period using an activated sludge inoculum(4); in river and sea water 4-t-butylphenol showed 11% biodegradation over 3 days(5). However, resting cells of a Pseudomonas strain obtained by selective enrichment with 4-hydroxybenzoate as the sole carbon source, were able to biodegrade 2-t-butylphenol (oxygen uptake rate 26 nmol O2/min/mg protein)(6). Volatilization of 2-t-butylphenol from moist soil surfaces would be slow(SRC) given an estimated Henry's Law constant of 1.4X10-6 atm-cu m/mole(7,SRC).

AQUATIC FATE: Based on a recommended classification scheme(1), an estimated Koc value of 1500(SRC), determined from an experimental log Kow(2) and a recommended regression-derived equation(3), indicates that 2-t-butylphenol would adsorb to suspended solids and sediment(SRC) in the water. 2-t-Butylphenol would volatilize slowly from water surfaces based on an estimated Henry's Law constant of 1.4X10-6 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Estimated half-lives for a model river and model lake are 31 and 230 days, respectively(3,SRC). An estimated BCF value of 190(3,SRC), from an experimental log Kow(2), suggests that 2-t-butylphenol may bioconcentrate in aquatic organisms(SRC) according to a recommended classification scheme(5). Limited data, mainly derived by analogy to 4-t-butylphenol, indicate that 2-t-butylphenol may be resistant to biodegradation(SRC). 4-t-Butylphenol (at 30 mg/L) was not biodegraded over a 2 week period using an activated sludge inoculum(6); in river and sea water 4-t-butylphenol showed 11% biodegradation over 3 days(7).

ATMOSPHERIC FATE: According to a suggested classification scheme(1), an experimental vapor pressure of 1.5X10-4 mm Hg at 25 °C(2) indicates that 2-t-butylphenol will exist in both the vapor and particulate phases in the ambient atmosphere(SRC). Vapor-phase 2-t-butylphenol 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 9.5 hours(3,SRC). Particulate-phase 2-t-butylphenol may be physically removed from the air by wet and dry deposition(SRC).

Cough. Sore throat. Shortness of breath.

Redness. Pain. Burning sensation. Skin burns.

Redness. Pain. Severe deep burns.

Burning sensation in the throat and chest. Abdominal pain. Shock or collapse.

The Koc of 2-t-butylphenol is estimated as approximately 1500(SRC), using an experimental log Kow of 3.31(1) and a regression-derived equation(2,SRC). According to a recommended classification scheme(3), this Koc value suggests that 2-t-butylphenol has low mobility in soil(SRC).

2-t-Butylphenol's production and use as an intermediate in the manufacture of synthetic resins, plasticizers, surface-active agents, and perfumes(1) or as a starting material for antioxidants and agrochemicals(2) may result in its release to the environment through various waste streams(SRC).

Resting cells of a Pseudomonas strain obtained by selective enrichment with 4-hydroxybenzoate as the sole carbon source, were able to biodegrade 2-t-butylphenol (oxygen uptake rate 26 nmol O2/min/mg protein)(1). 4-t-Butylphenol (at 30 mg/l) was not biodegraded over a 2 week period using an activated sludge inoculum; in river and sea water 4-t-butylphenol showed 11% biodegradation over 3 days(3). By analogy to 4-t-butylphenol, 2-t-butylphenol may be recalcitrant to biodegradation in the environment(SRC).