243361

硫酸クロム(III)カリウム 十二水和物

ACS reagent, ≥98%

• 別名: クロムミョウバン, 硫酸クロム(III)カリウム 十二水和物
• 化学式: CrK(SO₄)₂ · 12H₂O
• CAS番号: 7788-99-0
• 分子量: 499.40
• EC Number: 233-401-6
• MDL番号: MFCD00149917
• UNSPSCコード: 12352302
• PubChem Substance ID: 329752454
• NACRES: NB.24

特性

• グレード: ACS reagent
• 品質水準: 200
• アッセイ: ≥98%; 98.0-102.0% (ACS specification)
• フォーム: crystals
• 反応適合性: reagent type: catalyst; core: chromium
• 不純物: ≤0.01% insolubles
• mp: 89 °C (lit.)
• 微量陰イオン: chloride (Cl^-): ≤0.002%
• 微量陽イオン: Al: ≤0.02%; Fe: ≤0.01%; NH₄⁺: ≤0.01%; heavy metals (as Pb): ≤0.01%
• SMILES記法: O.O.O.O.O.O.O.O.O.O.O.O.[K+].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
• InChI: 1S/Cr.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4
• InChI Key: ZFVHBEKVAITXHW-UHFFFAOYSA-J

詳細

詳細

Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is widely used chemical in dyeing and textile industry. It can be synthesized by reacting sulfur dioxide with potassium dichromate (dissolved in sulfuric acid) at -38°C.

アプリケーション

Chromium(III) potassium sulfate dodecahydrate [KCr(SO₄)₂.12H₂O] has been used for the dissolution of gelatin in various studies.
It may be used as a starting material in the synthesis of quasi-monodisperse spherical core-shell particles of Cr/α-Cr₂O₃ to be used as solar absorbers.

安全性情報

• ピクトグラム: GHS07
• シグナルワード: Warning
• 危険有害性情報: H315,H319
• 注意書き: P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313
• 危険有害性の分類: Eye Irrit. 2 - Skin Irrit. 2
• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3