| 1. | Mercury removal technique development by way of sodium sulfide
硫化钠法除汞工艺技术开发 |
| 2. | Determination content of na2s with the use of precipitation separation - complexmetric titration
络合滴定法测量硫化钠含量 |
| 3. | Sodium sulfide flakes
片状硫化钠 |
| 4. | Test methods for bare wires - test for continuity of coating - sodium polysufide solution method
裸电线试验方法镀层连续性试验多硫化钠法 |
| 5. | Sodium hydrosulphide for industrial use - determination of the content of sodium hydrosulphide ane sulphide
工业硫氢化钠中硫氢化钠和硫化钠含量的测定 |
| 6. | Chemicals used for treatment of water intended for human consumption - sodium disulfite ; german version en 12121 : 2005
人类生活用水处理用化学品.二硫化钠 |
| 7. | Black powder . it is slightly insoluble in water , soluble in sodium sulfide with a green - black colour
黑色均匀粉末,微溶于水，溶于硫化钠溶液中呈绿黑色。 |
| 8. | 2m / 1 , the concentration of na2s is 0 . 1m / l , the temperature of sncl2 solution is 70c and na2s is room temperature
氯化亚锡溶液的反应温度是70 ，硫化钠溶液的反应温度是室温。 |
| 9. | Yellow - brown powder . it is insoluble in water . it is soluble in sodium sulfide solution with a yellow - orange colour , slightly soluble in concentrated sulfuric acid
黄棕色均匀粉末,不溶于水，溶于硫化钠溶液中呈黄光橙色，微溶于浓硫酸。 |
| 10. | By the mixing of sodium sulfide and sodium molybdate within a suitable ph range , molybdenum trisulfide particles were obtained as precipitation substance
在一定酸性的条件下将硫化钠和钼酸钠的水溶液进行混合与反应，生成棕色三硫化钼膏状沉淀。 |
