25508

罗谢尔盐 四水合物

puriss., 99.0-101.0% (calc. on H₂O free substance), meets analytical specification of Ph. Eur., BP, USP, FC, E 337

• 同義詞: L(+)-酒石酸 钾钠盐, 洛瑟尔氏盐, 罗谢尔盐
• 線性公式: KOCOCH(OH)CH(OH)COONa · 4H₂O
• CAS號碼: 6381-59-5
• 分子量：: 282.22
• Beilstein: 6113568
• EC號碼: 206-156-8
• MDL號碼: MFCD00150989
• 分類程式碼代碼: 12352100
• PubChem物質ID: 57648125
• NACRES: NA.21

屬性

• 等級: puriss.
• 品質等級: 200
• 化驗: 99.0-101.0% (calc. on H₂O free substance)
• 形狀: solid
• 光學活性: [α]20/D +28.0 to +30.0°
• 品質: meets analytical specification of Ph. Eur., BP, USP, FC, E 337
• 雜質: acidity or alkalinity, in accordance; residual solvent, complies; ≤0.001% heavy metals (as Pb); ≤0.003% total nitrogen (N); ≤0.004% ammonium (NH₄); ≤0.004% free alkali (as NaOH); ≤0.0075% free acid (as C₄H₆O₆); 24-26% water (Karl Fischer)
• 損耗: 21-26% loss on drying, 150 °C, 3 h
• pH值: 6.5-8.5 (20 °C, 1%)
• 負離子痕跡: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 正離子痕跡: As: ≤1 mg/kg; Ba:, in accordance; Ca: ≤50 mg/kg; Cu: ≤10 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; Pb: ≤2 mg/kg; Zn: ≤10 mg/kg
• 適合性: passes test for appearance of solution
• SMILES 字串: O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
• InChI: 1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
• InChI 密鑰: VZOPRCCTKLAGPN-ZFJVMAEJSA-L

描述

一般說明

Potassium sodium tartrate tetrahydrate (Rochelle salt) exists in the ferroelectric phase in the temperature range of 255 to 297K. In this phase, it crystallizes in the monoclinic system and exhibits space group P2₁. Saturated aqueous solution of potassium sodium tartrate (Rochelle salt) has been used for the preparation of its tetrahydrate crystals.

Potassium sodium tartrate tetrahydrate is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient.

應用

Potassium sodium tartrate tetrahydrate has been used in the β-1,3-glucanase activity assay.

Potassium sodium tartrate tetrahydrate may be used as a component to prepare DNS (3,5- dinitrosalicylic acid) reagent and Fehling′s solution B, which are used in the determination of reducing sugar.

安全資訊

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 個人防護裝備: Eyeshields, Gloves, type N95 (US)