联系人 Mr. Victor
17F/4 Yanlord Plaza, No.88 Maoxing Rd., Pudong New Area, Shanghai, Shanghai
| Index Name | Industry Grade | ||
| Excellent | Grade 1 | Grade 2 | |
| Purity,% min | *8.5 | *8.0 | *5.0 |
| Methyl Orange basicity(Na2O),% | *6.5~*9.0 | *6.0~*9.0 | *5.5~*9.0 |
| Water-insoluble matter, % max | 0.*5 | 0.*0 | 0.*0 |
| Sulphates(SO4),% max | 0.*0 | 0.*0 | 0.*0 |
| Chloride (Cl),% max | 0.*0 | 0.*0 | 0.*0 |
| Iron (Fe),% max | 0.*1 | — | — |
| Arsenic(As),% max | 0.**5 | — | — |
