Sodium sulfide
Daim ntawv thov:
Feem ntau yog siv rau textile, dyeing, mining, tanning, molting, paper-making, extracting of metals and medicine industries, thiab hais txog.
Specification:
Yam khoom | Txuj | |
Na2S | ≥60.0% | ≥60.0% |
Na2CO3 | ≤ 1.5% | ≤ 5% |
Dej insoluble | ≤ 0.05% | ≤ 0.4% |
Fe | ≤30ppm | 1500 ppm |
Sau koj cov lus ntawm no thiab xa tuaj rau peb