1.03170

Eriochrome black T (C.I. 14645)

metal indicator, ACS, Reag. Ph Eur

• 別名: Eriochrome black T (C.I. 14645), Chrome black T, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitronaphthalene-4-sulfonic acid sodium salt
• 実験式（ヒル表記法）: C₂₀H₁₂N₃NaO₇S
• CAS番号: 1787-61-7
• 分子量: 461.38
• MDL番号: MFCD00003935
• UNSPSCコード: 12352107
• EC Index Number: 217-250-3
• NACRES: NB.21

特性

• 製品名: Eriochrome black T (C.I. 14645), indicator for complexometry ACS,Reag. Ph Eur
• グレード: ACS reagent
• 品質水準: 200
• 認証: reag. Ph. Eur.
• フォーム: powder
• 有効性: 17590 mg/kg LD₅₀, oral (Rat)
• 損失: ≤7% loss on drying, 110°C
• 色: black to dark brown
• pH: 3.7 (20 °C, 10 g/L in H₂O)
• 溶解性: 50 g/L
• かさ密度: 400‑600 kg/m³
• λmax: 612-616 nm (buffer pH 10.0)
• 保管温度: 15-25°C
• SMILES記法: [Na+].[S](=O)(=O)(O)C1=CC(=O)\C(=N/Nc3c(c4c(cc3)cccc4)[O-])\c2c1cc(cc2)[N+](=O)[O-]
• InChI: 1S/C20H13N3O7S.Na/c24-17-10-18(31(28,29)30)15-9-12(23(26)27)6-7-14(15)19(17)22-21-16-8-5-11-3-1-2-4-13(11)20(16)25;/h1-10,21,25H,(H,28,29,30);/q;+1/p-1/b22-19-;
• InChI Key: JHUJLRKQZAPSDP-GXTSIBQPSA-M

詳細

関連事項

Replaces: EX0100-5; EX0100

アナリシスノート

Identity (UV/VIS-Spectrum): passes test
Appearance: Black to dark brown-black fine powder, eventually with granular parts
Clarity of solution: passes test
Absorption maximum λ_max. (buffer pH 10.0): 612 - 616 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.02 g/l; buffer pH 10.0; calc. on dried substance): 400 - 510
Loss on drying (110 °C): ≤ 7 %
Suitability as indicator (for complexometric titration, ACS): passes test
Suitability as indicator (Reag. Ph Eur): passes test

安全性情報

• ピクトグラム: GHS07,GHS09
• シグナルワード: Warning
• 危険有害性情報: H319 - H411
• 注意書き: P264 - P273 - P280 - P305 + P351 + P338 - P337 + P313 - P391
• 危険有害性の分類: Aquatic Chronic 2 - Eye Irrit. 2
• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 2
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable