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" ... MSES uses a combination 60% potassium nitrate and 40% sodium nitrate which retains 99% of the heat for up to 24 hours. Another way to put this number: this battery loses just 1% of the heat energy per day.(1) ... "
" ... Older cars in warmer, humid climates are given priority because investigators found that age and exposure to moisture is a key risk factor for airbag malfunction. The recalled inflators use an ammonium nitrate propellant that lacks a chemical additive to prevent moisture absorption. “The science clearly shows that these inflators become unsafe over time, faster when exposed to humidity and variations of temperature,” according to NHTSA Administrator Mark Rosekind. Cars in cooler, drier climates will be recalled later. ... "
" ... The Under 18’s Young Science Photographer of the Year in the Climate Change category goes to Chinese photographer Raymond Zhang for his image “Apollo’s Emissary,” a concentrated solar power (CSP) generating station in China. The image shows about 12,000 mirrors reflecting sunlight toward a central tower where it heats sodium nitrate salt. This goes to a heat exchanger, making steam to drive generator turbines—saving up to 350,000 tonnes of CO2 emission per year. “I am very excited about winning and hope that more young people like me can start to pay more attention to climate changes,” said Zhang. ... "
" ... The energy storage (“battery”) technology used molten salt as the transfer fluid. The chosen type of salt was a combination of sodium nitrate and potassium nitrate, which retains 99% of the heat for up to 24 hours. Another way to put this number: this battery loses just 1% of the heat energy per day. ... "