Calcium formate can accelerate the rate of cement hardening, capture high early strength, and avoid in winter or low temperature wet conditions construction coagulation speed is too slow question, so that the cement commodity as soon as possible to improve the strength into use, calcium formate for early strength dedication.
98% concentrated sulfuric acid and 96% sodium formate are used to react to form sodium sulfate and formic acid. The reaction to formic acid is an exothermic reaction, and the large amount of heat released must be removed quickly through heat exchange to prevent excessive temperature in the reactor. The reaction to produce formic acid is a strong acid to weak acid reaction, 98% concentrated sulfuric acid is far more acidic than formic acid, the reaction does not need a catalyst and other external conditions.
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