基本信息
1.产品名称: 硫化钠
2.其他名称:
Sodium monosulfide; Sodium sulfide (硫化钠); sodium sulfuret; Sodium Sulphide; Disodium monosulfide; Disodium sulfide; disodiummonosulfide; disodiumsulfide; Hesthsulphid; Na2-S; disodium sulfanide; sodium sulfidosodium
3.分子式: 硫化钠
4.没有。: 1849
5.海关编码:2830101000
6.CAS号: 1313-82-2
7.EINECS号: 215-211-5
8.危险等级: 8
9.纯度: 60%
10.外貌: Yellow and Red Flakes
11.等级标准: 工业级
物理和化学特性
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9水. Both the anhydrous and the hydrated salts are colorless solids, They are water-soluble, giving strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells like rotten eggs. Some commercial samples are specified as Na2S·xH2O, where a weight percentage of Na2S is specified. Commonly available grades have around 60% Na2S by weight, which means that x is around 3. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as ‘sodium sulfide flakes’.
等级标准: 工业级
| 物品 | 标准 | 标准 | STANDARD II | STANDARD III | 标准 | 标准 |
| 铁 | 10ppm max | 20ppm max | 30ppm max | 80ppm max | 150ppm max | 1500ppm max |
| 硫化钠 | 60%分钟 | 60%分钟. | 60%分钟. | 60%分钟. | 60%分钟. | 60%分钟. |
| Water insolubles | 0.03%最大限度 | 0.10%最大限度. | 0.18%最大限度. | 0.20%最大限度. | 0.30%最大限度. | 0.40%最大限度. |
| 碳酸钠 | 1.80%最大限度 | 1.80%最大限度. | 1.80%最大限度. | 2.00%最大限度. | 3.00%最大限度. | 5.00%最大限度. |
| Na2SO3 | 1.00%最大限度 | 1.80%最大限度. | 1.80%最大限度. | 2.00%最大限度. | 2.00%最大限度. | 2.00%最大限度. |
| Na2S2O3 | 2.00%最大限度 | 2.00%最大限度. | 2.00%最大限度. | 2.00%最大限度. | 2.00%最大限度. | 2.00%最大限度. |
| Colour | Yellow | RED | ||||
笔记: The above specification meets requirement of GB/T 10500-2009,and also accords with European and American Standards. 第三方检验也可以接受, 如BV,SGS等.
包裹
| 包裹 | 数量 (无托盘) 20'全科医生 | 数量 (带托盘) 20'全科医生 |
| 25公斤袋 | 25公吨 | 20公吨 |
| 1000公斤袋 | 20公吨 | 18公吨 |
应用
1.Sodium sulfide is primarily used in the kraft process in the pulp and paper industry.
2.It is used in water treatment as an oxygen scavenger agent and also as a metals precipitant;
3.in chemical photography for toning black and white photographs;
4.in the textile industry as a bleaching agent, for desulfurising and as a dechlorinating agent;
5.in the leather trade for the sulfitisation of tanning extracts.
6.It is used in chemical manufacturing as a sulfonation and sulfomethylation agent.
7.It is used in the production of rubber chemicals, sulfur dyes and other chemical compounds.
8.It is used in other applications including ore flotation, oil recovery, making dyes, and detergent.
9.It is also used during leather processing, as an unhairing agent in the liming operation.
贮存
存放于阴凉处, 干燥的地方. 不用时请关闭容器. 存放在密闭容器内. 避免与氧化性物质接触. 远离强酸. 储存防潮.
Like sodium hydroxide, sodium sulfide is strongly alkaline and can cause skin burns. Acids react with it to rapidly produce hydrogen sulfide, which is highly toxic.
