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ammonium sulfite
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ammonium sulfite
Encyclopedia
工学
二氧化硫
释
ammonium sulfite
硫酸铵
分子式(NH 4) 2 SO 4 ,分子量132。纯品为无色斜方晶体,工业品为白色至淡黄色结晶体,无气味,熔点80~230℃,0℃时水中溶解度70.6克,100℃时103.8克,不溶于乙醇和丙酮,0.1摩尔/升水溶液的pH为5.5,相对密度1.77,折光率1.521。
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backward production capacity
backward reachability
backward reaction
backward reasoning
backward recovery
backward scattering
backward stability
backward stochastic differential equation
backward stochastic differential equation (BSDE)
backward substitution
backward sweep
backward type
backward type cycle
backward wave
backward wave amplifier
backward wave oscillator
backward-wave oscillator
backward wave oscillator, BWO
backward wave power amplifier
backward wave tube oscillator
back warming
backwarming
backwash effect
back washing
backwater
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