EghtesadOnline: Caustic soda, or sodium hydroxide, is one of the most important chemicals manufactured. Sodium hydroxide, also known as Caustic Soda is a highly caustic metallic base. It is a white solid available in pellets, flakes, granules, and as a 50% saturated solution. Sodium hydroxide is soluble in water, ethanol and methanol. This alkali is deliquescent and readily absorbs moisture and carbon dioxide in air.

EghtesadOnline: In a renewed push to go green, the first phase of a carbon dioxide recycling plant was launched in Rey County (south Tehran) near Tehran Oil Refinery.

EghtesadOnline: In line with efforts to curtail gas emissions, Shahid Hasheminejad Gas Processing Company curbed the release of 46,000 tons of carbon dioxide by developing the second phase of flare gas recovery (FGR) method in the previous fiscal that ended on March 20, managing director of the company said.