Cyclopedia of textile work : a general reference library on cotton, woollen and worsted yarn manufacture, weaving, designing, chemistry and dyeing, finishing, knitting, and allied subjects (1907)
Chicago : American school of correspondence · leaf 271
Plan of Fig. 77. paratively simple, but the various forms of apparatus for remov-ing this precipitate from the water are more or less complicated.The commonest re-agents used as precipit-ants are sodiumcarbonate and calcium hydroxide. These are added to the water … Side Elevation of Top of Fig. 77. in just the right proportion to react with the mineral matterpresent according to the following equations: First, assuming that the water is only temporarily hard-CaH3(C03)^ + Ca(0H)3 = 2CaC03 + SH^ O. By this method it will be seen that if lime water is added 035…
Textile industry · Textile fabrics
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