Overview of Lithium Sulfide Li2S Powder
Lithium Sulfide Li2S Powder is an inorganic compound of lithium and sulfur elements in a 2:1 molar ratio. It is a white or slightly yellowish powder with high chemical activity. Lithium sulfide powder is relatively stable at room temperature but is prone to react with water in humid environments to generate hydrogen sulfide and lithium hydroxide. Lithium sulfide powder is an important inorganic compound with many applications and significant scientific value. Its research and application are significant for promoting technological progress and industrial development in related fields.
Features of Lithium Sulfide Li2S Powder
High chemical activity: Lithium sulfide powder has high chemical activity and is prone to react with various elements and compounds, making it widely used in fields such as chemical synthesis and battery technology.
White or light yellow powder: Lithium sulfide powder appears white or light yellow, which gives it visual recognition in certain applications.
Sensitive to moisture: Lithium sulfide powder is sensitive to humid environments and easily reacts with water, which requires moisture-proof measures to be taken during use and storage.
High purity: Lithium sulfide powder can achieve high purity, such as 99.9%, making it excellent in applications requiring high-precision reactions.
Good conductivity: Lithium sulfide powder has good conductivity, making it have important application value in electronics and batteries.
Multifunctionality: Lithium sulfide powder can not only participate in chemical reactions as a raw material, but also be used as a battery material, catalyst, etc. Its versatility makes it have potential applications in many fields.
Application of Lithium Sulfide Li2S Powder
Lithium battery technology: Lithium sulfide powder is an important component of lithium batteries, especially in high-temperature lithium batteries. It can provide high energy density and long cycle life as a positive electrode material.
Application of Lithium Sulfide Li2S Powder
Chemical synthesis: Lithium sulfide powder can participate in various organic and inorganic synthesis reactions as a sulfide reagent, providing the possibility for synthesizing new materials.
Glass industry: In the glass manufacturing process, lithium sulfide powder can be used as a clarifying agent to help eliminate bubbles and impurities in the glass.
Application of Lithium Sulfide Li2S Powder
Ceramic industry: Lithium sulfide powder can be used to prepare ceramic materials, improving the performance and processability of ceramics.
Application of Lithium Sulfide Li2S Powder
Metallurgical industry: In the metallurgical process, lithium sulfide powder can be used as a desulfurizer to help remove sulfur elements from metals and improve metal quality.
Analytical Chemistry: Lithium sulfide powder is used as a standard substance or reagent in analytical chemistry for quantitative analysis and quality control.
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Q1
What substances are produced by the reaction between lithium sulfide powder and water?
Answer: The reaction between lithium sulfide powder and water produces hydrogen sulfide (H2S) and lithium hydroxide (LiOH). This reaction is exothermic and may be accompanied by the generation of bubbles. Therefore, caution must be taken when handling lithium sulfide powder to avoid contact with water.
Q2
How to store lithium sulfide powder to ensure its stability?
Answer: To ensure the stability of lithium sulfide powder, it should be stored in a dry, cool, well-ventilated place, away from water sources and humid environments. At the same time, contact with oxidants, acids, and other substances should be avoided to prevent chemical reactions from occurring. During storage, the condition of the powder should also be regularly checked to ensure that it is not damp or spoiled.
Q3
What is the role of lithium sulfide powder in lithium batteries?
Answer: Lithium sulfide powder is usually used as the positive electrode material in lithium batteries. It has a high energy density and good cycling performance, which can provide stable voltage and a long service life. In addition, lithium sulfide powder also has good conductivity, which helps improve batteries' charging and discharging efficiency.
Q4
Why does lithium sulfide powder react easily in humid environments?
Answer: Lithium sulfide powder is prone to react in humid environments due to its high chemical activity. The sulfur element in lithium sulfide powder easily reacts with water molecules to generate hydrogen sulfide and lithium hydroxide. This reaction is exothermic and will accelerate lithium sulfide powder's decomposition and deterioration process. Therefore, moisture-proof measures must be taken to ensure its stability and safety when handling and storing lithium sulfide powder.
Q5
What is the impact of the purity of lithium sulfide powder on its application performance?
Answer: The purity of lithium sulfide powder significantly impacts its application performance. High-purity lithium sulfide powder can provide more reliable reaction performance and stable physical properties, ensuring excellent performance in various applications. In chemical synthesis, high-purity lithium sulfide powder can ensure the accuracy and repeatability of the reaction.
Lithium Sulfide Properties | |
Other Names | lithium sulphide, dilithium sulfide, dilithium sulfanide, lithium sulfide anhydrous, Li2S powder |
CAS No. | 12136-58-2 |
Compound Formula | Li2S |
Molecular Weight | 45.95 |
Appearance | Light Yellow Powder |
Melting Point | 938℃ |
Boiling Point | 1372℃ |
Density | 1.66 g/cm3 |
Solubility in H2O | N/A |
Exact Mass | 46.00408 |
Gallium Sulfide Health & Safety Information | |
Signal Word | Danger |
Hazard Statements | H301-H314 |
Hazard Codes | C |
Risk Codes | 22-31-34 |
Safety Statements | 26-36/37/39-45 |
Transport Information | UN 2923 8/PG 2 |