... , min, freezing resistance and electronic industry. 1.pure calcium agent snow thawing agent:(CaCl2.2H2O)a:use: mainly used in airfield, expressway, min ... index NaCl: ≤50% MgCl2.6H2O≥40%B:TN PT2# snow thawing agent 1.use: has slop resistance role, mainly used in freezing ... : ≤60%, MgCl2.6H2O:≥30% quality index:10% C:TNPT3# snow thawing agent 1.use: widely used in such regions where the temperature ...