Explore chapters and articles related to this topic
Extinguishing Systems and Equipment
Published in Peter M. Bochnak, Fire Loss Control, 2020
Dry chemical as an extinguishing agent is very known and is applied by portable extinguishers, hand hose line systems, and fixed systems. The dry chemical used most extensively is sodium bicarbonate, which has excellent extinguishing capabilities when used to combat fires inflammable liquids, but this agent is also acceptable for use on electrical fires. The extinguishing agent does have the drawback of being corrosive and, therefore, affects finely polished metal surfaces such as found in electronic equipment.
Chemistry, food and the modern diet: what’s in food besides food?
Published in Richard J. Sundberg, The Chemical Century, 2017
Baking soda is sodium bicarbonate, NaHCO3. In the United States it is manufactured from a mineral, trona (Na3H(CO3)2), that was discovered in the Green River Basin in Wyoming in the 1950s. The mineral is combined with water and CO2 from nearby natural gas wells. Na3H(CO3)2+CO2+H2O→3NaHCO3
Thermophilic anaerobic digestion of cattail and hydrothermal carbonization of the digestate for co-production of biomethane and hydrochar
Published in Journal of Environmental Science and Health, Part A, 2020
Bo Zhang, Gail Joseph, Lijun Wang, Xin Li, Abolghasem Shahbazi
The melting points of Na2CO3 and NaCl are 851 and 801 °C, respectively. The melting point of sodium bicarbonate (NaHCO3) is any temperature over 50 °C because it starts to undergo thermal decomposition, forming sodium carbonate (Na2CO3), water and carbon dioxide. Three molten salts behaved differently during carbonization. However, the mechanism for formation of porosity in molten salts is still unclear. Some publications attribute the formation of activated carbon to the templating action of intentionally added salts during the synthesis,[36,37] while others considered carbonates as both template and activating agent.[38] According to the experimental results, it can be clearly seen that sodium carbonate is the optimum activating agent, and the hydrochar activated by Na2CO3 had the highest specific surface area. Sodium carbonate is more economical and safer than activators commonly used in industrial production such as KOH and ZnCl2.