33114

クエン酸 一水和物

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, 99.5-102%

• 別名: 2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate
• 化学式: HOC(COOH)(CH₂COOH)₂ · H₂O
• CAS番号: 5949-29-1
• 分子量: 210.14
• Beilstein: 4018641
• EC Number: 201-069-1
• MDL番号: MFCD00149972
• UNSPSCコード: 12352100
• PubChem Substance ID: 57648756
• NACRES: NA.21

特性

• グレード: ACS reagent; puriss. p.a.
• 品質水準: 200
• 認証: USP/NF; reag. ISO; reag. Ph. Eur.
• アッセイ: 99.5-100.5% (calc. on anhydrous substance); 99.5-102%
• フォーム: solid
• 不純物: ≤0.005% insolubles in water; ≤2 ppm heavy metals (as Pb); 7.5-9.0% water (Karl Fischer)
• 強熱残分: ≤0.01% (as SO₄)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• 微量陰イオン: chloride (Cl^-): ≤5 mg/kg; oxalate (C₂O₄^2-): ≤50 ppm; phosphate (PO₄^3-): ≤10 mg/kg; sulfate (SO₄^2-): ≤20 ppm
• 微量陽イオン: Ca: ≤50 mg/kg; Cu: ≤5 mg/kg; Fe: ≤3 ppm; Pb: ≤2 ppm; Zn: ≤5 mg/kg
• 適合性: complies for appearance of solution; complies for reaction against H₂SO₄
• 官能基: carboxylic acid
• SMILES記法: OC(CC(O)(C(O)=O)CC(O)=O)=O.O
• InChI: 1S/C6H8O7.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);1H2
• InChI Key: YASYEJJMZJALEJ-UHFFFAOYSA-N

詳細

詳細

Citric acid monohydrate is an organic acid. Its molar enthalpy of solution in water has been reported to be Δ_solH_m (298.15K, m = 0.0203molkg^-1) = (29061 ± 123)Jmol^-1.

アプリケーション

Citric acid monohydrate may be used in the preparation of tris-citrate buffer and Otto I isolation buffer used in bioprotocols. It may also be used to improve the release of diltiazem hydrochloride from melt extruded matrix tablets.

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: H319,H335
• 注意書き: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• 危険有害性の分類: Eye Irrit. 2 - STOT SE 3
• ターゲットの組織: Respiratory system
• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 1
• 引火点(°F): 345.0 °F - closed cup
• 引火点(℃): 173.9 °C - closed cup
• 個人用保護具 (PPE): dust mask type N95 (US), Eyeshields, Gloves