Analytical Pure Sodium Hydroxide [Tablet Alkali, Caustic Alkali, Caustic Sodium]
sodium hydroxide, chemical formula naoh, commonly known as caustic soda, caustic soda, is a strong caustic alkali with strong corrosiveness, generally in sheet or granular form, soluble in water (when dissolved in water exothermic) and form …
Sodium hydroxide, chemical formula NaOH, commonly known as caustic soda, caustic soda, is a strong caustic alkali with strong corrosiveness, generally in sheet or granular form, soluble in water (when dissolved in water exothermic) and form an alkaline solution, and also deliquescent, easy to absorb water vapor (deliquescence) and carbon dioxide (deterioration) in the air, can be added with hydrochloric acid to check whether deterioration.
NaOH is one of the necessary chemicals in chemical laboratories, and it is also one of the common chemical products. Pure products are colorless transparent crystals. The density is 2.130g/cm. Melting point 318.4 C. Boiling point 1390 C. Industrial products contain a small amount of sodium chloride and sodium carbonate, which are white opaque crystals. They are massive, flaky, granular and rodlike. Formula 40.01
Sodium hydroxide can be used as alkaline detergent in water treatment, soluble in ethanol and glycerol, insoluble in propanol and ether. It also corrodes sodium carbonate at high temperature. Disproportionation reaction with halogens such as chlorine, bromine and iodine. Neutralize with acids to form salt and water
工业氢氧化钠 Test Report of Product 检验报告
品 名：氢氧化钠（NaOH） 规 格: 分析纯 标准依据: GB/T629—1997
Product: Sodium hydroxide Specification: AR Standard: GB/T629—1997
批 号: 201603163 生产日期：2016年03月13日 有效期：2016年03月15日
检 验 项 目 | 检 验 标 准 | 检 验 结 果 |
性状 (Characters) | 白色均匀颗粒 (White uniform granules) | 合格（Conform） |
含量 (Assay) | 96.0% | 99.4% |
碳酸盐 （Carbonate） | 1.5% | 1.1% |
澄清度实验 (Appearance of solution) | 应符合规定（Comply with the standard） | 合格（Conform） |
氯化物 (Chloride) | 0.005% | 0.002% |
硫酸盐 （Sulphates） | 0.005% | 0.002% |
总氮量 （Total nitrogen） | 0.001% | 0.0005% |
磷酸盐 (Phosphate) | 0.001% | 0.0005% |
硅酸盐 (Silicate) | 0.01% | 0.003% |
铝 (Aluminium) | 0.002% | 0.001% |
钾 (Potassium) | 0.05% | 0.02% |
钙 (Calcium) | 0.01% | 0.005% |
铁 (Iron) | 0.001% | 0.0007% |
重金属 (Heavy metal) | 0.003% | 0.0014% |
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