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Adjust the pH as necessary using the sodium hydroxide and citric acid solutions.
In the present method, sodium hydroxide and ethylene glycol which are less harmful to the environment are used instead of environmentally destructive surfactants," Kambiz Shojae'e, one of the researchers explained to INIC's news service.
The charges relate to two train derailments in August 2005 that spilled heavy fuel oil and pole treating oil into Wabamun Lake in Alberta, and sodium hydroxide into the Cheakamus River in British Columbia.
Miner WORCESTER - The state Department of Environmental Protection said yesterday that operator error was responsible for the excess of sodium hydroxide in the Spencer public water supply last week, creating an emergency that spanned several days.
Also known as sodium hypochlorite and sodium hydroxide, this common disinfectant, found in liquid bleach, drain cleaners and oven cleaners (combined with caustic lye), can burn skin and eyes and be fatal if swallowed.
In the Detroit Edison case, EPA alleges that the facility at 1 Belanger Park Drive failed to immediately notify the National Response Center of a 10,559-pound release of sodium hydroxide on May 6, 2003.
Some environmental agencies around the world do not classify sodium hydroxide as a cause of water pollution as it breaks down once in contact with water and greasy fats.
The most widely used catalysts are bases, such as sodium hydroxide, that convert 98 percent of the starting materials into the esters.