硝酸鈉是一種無機(jī)物質(zhì)，化學(xué)式為NaNO3。分子量84.99。吸濕無色透明三角形晶體。加熱到380℃時(shí)分解。它非常溶于水和液氨，溶于甲醇和乙醇，較溶于丙酮，微溶于甘油。當(dāng)溶解在水中時(shí)，它吸收熱量，溶液變冷，水溶液呈中性。它是從工業(yè)堿溶液中吸收氮氧化物，蒸發(fā)結(jié)晶而成。用于制造硝酸和亞硝酸鈉，用作玻璃、火柴、搪瓷或陶瓷工業(yè)的配料，硫酸工業(yè)的肥料、催化劑等。
Sodium nitrate is an inorganic substance with the chemical formula of NaNO3. Molecular weight 84.99. Hygroscopic colorless transparent triangular crystal. Decompose when heated to 380 ℃. It is very soluble in water and liquid ammonia, soluble in methanol and ethanol, more soluble in acetone and slightly soluble in glycerol. When dissolved in water, it absorbs heat, the solution becomes cold, and the aqueous solution is neutral. It is formed by absorbing nitrogen oxides from industrial alkali solution and evaporation crystallization. It is used for manufacturing nitric acid and sodium nitrite, as ingredients in glass, match, enamel or ceramic industry, fertilizer and catalyst in sulfuric acid industry, etc.
操作注意事項(xiàng)
Precautions for operation
對(duì)于密閉操作和加強(qiáng)通風(fēng)，操作人員要接受專門培訓(xùn)，并嚴(yán)格遵守操作規(guī)程。建議操作人員穿戴自吸過濾器防塵口、化學(xué)防護(hù)眼鏡、聚乙烯防毒服和氯丁橡膠手套。遠(yuǎn)離火種和熱源。工作場(chǎng)所嚴(yán)禁吸煙。遠(yuǎn)離易燃物和可燃物。避免產(chǎn)生灰塵。避免接觸還原劑、活性金屬粉末和酸。搬運(yùn)過程中，應(yīng)小心裝卸，以防損壞包裝和容器。提供相應(yīng)品種和數(shù)量的消防設(shè)備和泄漏應(yīng)急處理設(shè)備。空容器可能會(huì)留下有害物質(zhì)。
For closed operation and enhanced ventilation, operators shall receive special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust port, chemical protective glasses, polyethylene anti-virus clothing and neoprene gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Keep away from combustibles and combustibles. Avoid dust generation. Avoid contact with reducing agents, active metal powders and acids. During handling, handle with care to prevent damage to packaging and containers. Provide corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances.
儲(chǔ)存注意事項(xiàng)
Storage precautions
儲(chǔ)存在陰涼通風(fēng)的倉庫中。遠(yuǎn)離火種和熱源。貯存溫度不超過30℃，相對(duì)濕度不超過80%。應(yīng)與還原劑、活性金屬粉末、酸、可燃物等分開存放，不得同時(shí)存放。儲(chǔ)存區(qū)域應(yīng)提供適當(dāng)?shù)牟牧希苑乐剐孤?/div>
Store in a cool and ventilated warehouse. Keep away from fire and heat sources. The storage temperature shall not exceed 30 ℃, and the relative humidity shall not exceed 80%. It shall be stored separately from reducing agent, active metal powder, acid, combustibles, etc., and shall not be stored at the same time. Suitable materials shall be provided in the storage area to prevent leakage.
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