半岛bd体育手机客户端 说明
一般描述
Potassium sodium tartrate tetrahydrate is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient.
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 groupP21. Saturated aqueous solution of potassium sodium tartrate (Rochelle salt) has been used for the preparation of its tetrahydrate crystals.
应用
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.
基本信息
| 线性分子式 | KOCOCH(OH)CH(OH)COONa · 4H2O |
| 分子量 | 282.22 |
| Beilstein | 6113568 |
| EC 号 | 206-156-8 |
| MDL编号 | MFCD00150989 |
| PubChem化学物质编号 | 57648125 |
| NACRES | NA.21 |
半岛bd体育手机客户端 性质
| 质量水平 | 200 |
| 等级 | puriss. |
| 测定 | 99.0-101.0% (calc. on H2O free substance) |
| 旋光性 | [α]20/D +28.0 to +30.0° |
| 质量 | meets analytical specification of Ph. Eur., BP, USP, FC, E 337 |
| 杂质 | 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) |
| 缺失 | 21-26% loss on drying, 150 ℃, 3 h |
| pH值(酸碱度) | 6.5-8.5 (20 ℃, 1%) |
| 痕量阴离子 | chloride (Cl-): ≤20 mg/kg sulfate (SO42-): ≤50 mg/kg |
| 痕量阳离子 | 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 |
| 适用性 | passes test for appearance of solution |
| SMILES string | 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 key | VZOPRCCTKLAGPN-ZFJVMAEJSA-L |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US) |
m.cnreagent.com
