二氧化碲 (CAS No.7446-07-3)
- 物化性质
- 白色结晶粉末，加热时可能变黄；熔点733℃，沸点1260℃；密度5.49~6.02 g/cm³（四方晶系相对密度5.66，斜方晶系5.91）；极难溶于水，不溶于氨水，可溶于强酸和强碱并形成复盐；稳定，但与强酸、强氧化剂不相容，受高热分解会放出有毒的氧化碲蒸气。
- 纯度
- 99.99%
- 熔点
- 733℃
- 沸点
- 1260℃
- 密度
- 5.49~6.02 g/cm³
English description（英文原文，共 1227 字符）
Product Name:Tellurium dioxide
English Name:Tellurium dioxide
CAS No.:7446-07-3
Aliases:Tellurous anhydride
Molecular Formula:TeO2
Physical Properties:White crystalline powder, may turn yellow upon heating; melting point 733°C, boiling point 1260°C; density 5.49–6.02 g/cm³ (tetragonal relative density 5.66, orthorhombic 5.91); very slightly soluble in water, insoluble in ammonia, soluble in strong acids and alkalis forming double salts; stable but incompatible with strong acids and strong oxidizers, decomposes at high heat releasing toxic tellurium oxide fumes.
Uses:Used to prepare II-VI compound semiconductors, thermoelectric conversion elements, refrigeration elements, piezoelectric crystals and infrared detectors, and as an additive for semiconductor materials. It is an excellent acousto-optic crystal used in optical glass, optical lenses, optical fibers, and infrared optical lenses and windows due to its good infrared transmittance. Also used as an antiseptic, brightener in electroplating baths, catalyst for petroleum cracking, and coloring agent for ceramics and glass.
Technical Specifications:
Purity: 99.99%
Melting point: 733°C
Boiling point: 1260°C
Density: 5.49–6.02 g/cm³
Packaging: 1 kg
English Name:Tellurium dioxide
CAS No.:7446-07-3
Aliases:Tellurous anhydride
Molecular Formula:TeO2
Physical Properties:White crystalline powder, may turn yellow upon heating; melting point 733°C, boiling point 1260°C; density 5.49–6.02 g/cm³ (tetragonal relative density 5.66, orthorhombic 5.91); very slightly soluble in water, insoluble in ammonia, soluble in strong acids and alkalis forming double salts; stable but incompatible with strong acids and strong oxidizers, decomposes at high heat releasing toxic tellurium oxide fumes.
Uses:Used to prepare II-VI compound semiconductors, thermoelectric conversion elements, refrigeration elements, piezoelectric crystals and infrared detectors, and as an additive for semiconductor materials. It is an excellent acousto-optic crystal used in optical glass, optical lenses, optical fibers, and infrared optical lenses and windows due to its good infrared transmittance. Also used as an antiseptic, brightener in electroplating baths, catalyst for petroleum cracking, and coloring agent for ceramics and glass.
Technical Specifications:
Purity: 99.99%
Melting point: 733°C
Boiling point: 1260°C
Density: 5.49–6.02 g/cm³
Packaging: 1 kg
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常见问题
- 二氧化碲的 CAS 号是多少？
- 二氧化碲的 CAS 号是 7446-07-3。
- 二氧化碲的分子式和分子量是什么？
- 二氧化碲的分子式为 TeO2。
- 二氧化碲的英文名称是什么？
- 二氧化碲的英文名称为 Tellurium dioxide。
- 二氧化碲还有哪些别名？
- 二氧化碲又称 亚碲酐。
- 二氧化碲有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条二氧化碲供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- 二氧化碲的供应商主要分布在哪些地区？
- 二氧化碲的供应商主要分布在 上海市（1 条） 等地。
- 二氧化碲有哪些级别可选？
- 平台上二氧化碲的供应级别包括 工业级。
- 二氧化碲的报价单位是什么？
- 二氧化碲的报价单位主要有 千克。
- 哪里可以查到二氧化碲的价格？
- 掌上化工二氧化碲产品页汇总了各供应商的最新报价与规格，地址：/chemicals/7446-07-3/。部分供应商价格为电议，可通过页面上的询价功能直接获取。
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