The sodiumsilicate sand prepared with higher modulussodiumsilicate has advantages of low residual strength, short CO2 blowing time, high moisture absorption ability and surface stability.
使用较高模数的水玻璃混制的型砂具有残留强度低、吹CO2时间短等优点，并有好的抗吸湿性和表面稳定性。
2
A new way of preparing big modulussodiumsilicate and active charcoal from rice dusk ash was described.