明矾 (CAS No.7784-24-9)
- 中文别名
- 十二水硫酸铝铵；硫酸铝铵
- 英文名称
- Ammonium aluminum sulfate dodecahydrate
- 分子式
- NH4Al(SO4)2·12H2O
- 所属类别
- 有机无机原料
- 物化性质
- 无色玻璃状八面结晶至白色颗粒或粉末，无臭，略带甜味，有强收敛性。易溶于水，不溶于乙醇，水溶液呈酸性。密度约1.64 g/cm³，熔点94.5℃（失去结晶水），加热至120℃可完全失去结晶水。
- 技术参数
- 纯度（以干基计）≥99%。 外观为无色玻璃状八面结晶或白色颗粒粉末。 高白度、高细度，长时间存放不结块。 水不溶物含量≤0.01%。
English description（英文原文，共 1204 字符）
Product Name:Ammonium aluminum sulfate dodecahydrate
English Name:Ammonium aluminum sulfate dodecahydrate
CAS No.:7784-24-9
Aliases:Ammonium alum, Aluminum ammonium sulfate
Molecular Formula:NH4Al(SO4)2·12H2O
Physical Properties:Colorless vitreous octahedral crystals or white granular powder, odorless, slightly sweet taste, strongly astringent. Freely soluble in water, insoluble in ethanol, aqueous solution is acidic. Density approximately 1.64 g/cm³, melting point 94.5°C (loss of water of crystallization), completely loses all crystal water when heated to 120°C.
Uses:Used as a food additive in baking powder, fried food processing, jellyfish pickling, vermicelli production, and fruit and vegetable fresh-keeping and color protection; also used in water purification, disinfection, rubber processing, leather making, detergent powder processing, feed processing, and pencil manufacturing. It can also serve as a reference reagent for aluminum.
Technical Specifications:
Purity (on dry basis) ≥99%.
Appearance is colorless vitreous octahedral crystals or white granular powder.
High whiteness and high fineness, no caking during long-term storage.
Water insoluble matter content ≤0.01%.
English Name:Ammonium aluminum sulfate dodecahydrate
CAS No.:7784-24-9
Aliases:Ammonium alum, Aluminum ammonium sulfate
Molecular Formula:NH4Al(SO4)2·12H2O
Physical Properties:Colorless vitreous octahedral crystals or white granular powder, odorless, slightly sweet taste, strongly astringent. Freely soluble in water, insoluble in ethanol, aqueous solution is acidic. Density approximately 1.64 g/cm³, melting point 94.5°C (loss of water of crystallization), completely loses all crystal water when heated to 120°C.
Uses:Used as a food additive in baking powder, fried food processing, jellyfish pickling, vermicelli production, and fruit and vegetable fresh-keeping and color protection; also used in water purification, disinfection, rubber processing, leather making, detergent powder processing, feed processing, and pencil manufacturing. It can also serve as a reference reagent for aluminum.
Technical Specifications:
Purity (on dry basis) ≥99%.
Appearance is colorless vitreous octahedral crystals or white granular powder.
High whiteness and high fineness, no caking during long-term storage.
Water insoluble matter content ≤0.01%.
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常见问题
- 明矾的 CAS 号是多少？
- 明矾的 CAS 号是 7784-24-9。
- 明矾的分子式和分子量是什么？
- 明矾的分子式为 NH4Al(SO4)2·12H2O。
- 明矾的英文名称是什么？
- 明矾的英文名称为 Ammonium aluminum sulfate dodecahydrate。
- 明矾还有哪些别名？
- 明矾又称 十二水硫酸铝铵、硫酸铝铵。
- 明矾有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条明矾供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- 明矾的供应商主要分布在哪些地区？
- 明矾的供应商主要分布在 上海市（1 条） 等地。
- 明矾有哪些级别可选？
- 平台上明矾的供应级别包括 工业级。
- 明矾的报价单位是什么？
- 明矾的报价单位主要有 千克。
- 哪里可以查到明矾的价格？
- 掌上化工明矾产品页汇总了各供应商的最新报价与规格，地址：/chemicals/7784-24-9/。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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