1.00244

クエン酸 一水和物

for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

• 別名: 2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid
• 化学式: HOC(COOH)(CH₂COOH)₂ · H₂O
• CAS番号: 5949-29-1
• 分子量: 210.14
• Beilstein: 4018641
• MDL番号: MFCD00149972
• UNSPSCコード: 12352106
• EC Index Number: 201-069-1
• NACRES: NA.21
• アッセイ: 99.5-100.5% anhydrous basis (acidimetric)
• グレード: ACS reagent
• フォーム: solid
• 溶解性: 880 g/L

特性

• グレード: ACS reagent
• 品質水準: 300
• 認証: reag. ISO; reag. Ph. Eur.
• 蒸気圧: <1 Pa ( 25 °C)
• 製品種目: EMSURE^®
• アッセイ: 99.5-100.5% anhydrous basis (acidimetric)
• フォーム: solid
• 有効性: 3000 mg/kg LD₅₀, oral (Rat)
• 組成: Water, 7.5-8.8% Karl Fischer
• 不純物: ≤200 ppm Sulfated ash; ≤50 ppm In water insoluble matter
• 色: clear; white to almost white
• pH: 1.85 (25 °C, 50 g/L in H₂O)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• mp: 135-152 °C
• 転移温度: flash point 173.9 °C
• 溶解性: 880 g/L
• 密度: 1.54 g/cm³ at 20 °C
• かさ密度: 800‑1000 kg/m³
• 微量陰イオン: chloride (Cl^-): ≤5 ppm; oxalate (as oxalic acid): ≤50 ppm; phosphate (PO₄^3-): ≤10 ppm; sulfate (SO₄^2-): ≤20 ppm
• 微量陽イオン: Al: ≤0.2 ppm; As: ≤1 ppm; Cu: ≤5 ppm; Fe: ≤3 ppm; Hg: ≤1 ppm; Pb: ≤0.5 ppm; heavy metals (as Pb): ≤5 ppm
• 保管温度: 2-30°C
• 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

アプリケーション

• Biopolymeric Blends of Thermoplastic Starch and Polylactide as Sustainable Packaging Materials: This publication uses citric acid monohydrate in the synthesis of biodegradable polymers, highlighting its utility in developing sustainable materials within the industrial manufacturing and environmental sectors (Jozinović A et al., 2024).

関連事項

Replaces: CX1725-1; CX1725-3; CX1725

アナリシスノート

Assay (acidimetric, calc. on anhydrous substance): 99.5 - 100.5 %
Identity (IR-spectrum): passes test
Appearance: white to almost white or colorless crystals
Appearance of solution (200 g/l; water): clear (≤ 3 NTU) and not more intense in color than reference solution Y₇, BY₇ or GY₇
In water insoluble matter: ≤ 50 ppm
Chloride (Cl): ≤ 5 ppm
Phosphate (PO₄): ≤ 10 ppm
Sulphate (SO₄): ≤ 20 ppm
Heavy metals (as Pb): ≤ 5 ppm
Al (Aluminium): ≤ 0.2 ppm
As (Arsenic): ≤ 1 ppm
Hg (Mercury): ≤ 1 ppm
Cu (Copper): ≤ 5 ppm
Fe (Iron): ≤ 3 ppm
Fe (Iron, acc. to Reag. Ph  Eur.): suitable to use in the limit test for iron
Pb (Lead): ≤ 0.5 ppm
Oxalates (as C₂H₂O₄): ≤ 50 ppm
Readily carbonisable substance: passes test
Sulfated ash: ≤ 200 ppm
Water (according to Karl Fischer): 7.5 - 8.8 %
Corresponds to ACS, ISO 6353/2, Reag. Ph. Eur.

法的情報

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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