酒石酸钾钠四水合物 [罗谢尔盐四水合物]，Potassium sodium tartrate tetrahydrate；puriss., 99.0-101.0% (calc. on H2O free substance), meets analytical specification of Ph. Eur., BP, USP, FC, E 337

别名：酒石酸钾钠水合物；四水酒石酸钾钠；水合酒石酸钾钠；L(+)-酒石酸钾钠盐；洛瑟尔氏盐；水合罗谢尔盐；四水罗谢尔盐；罗谢尔盐水合物；L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt

线性分子式: KOCOCH(OH)CH(OH)COONa · 4H2O CAS号: 6381-59-5 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

制造商品牌: 西格玛 Sigma-Aldrich

货号（SKU）: 25508

CAS号: 6381-59-5

MDL号: MFCD00150989

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目录价.SKU-Variant

500g
1Kg [+¥644.88]
6X1Kg [+¥4,419.94]
5Kg [+¥4,860.20]

¥716.52

数量:

说明

一般描述

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.[1]

Potassium sodium tartrate tetrahydrate is a ferroelectric crystal[2] with a high piezoelectric effect and electromechanical coupling coefficient.[3]

应用

Potassium sodium tartrate tetrahydrate has been used in the β-1,3-glucanase activity assay.[4]

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.[5][6]

属性

等级

puriss.

质量水平

200

检测方案

99.0-101.0% (calc. on H₂O free substance)

形式

solid

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 °C, 3 h

pH值（酸碱度）

6.5-8.5 (20 °C, 1%)

痕量阴离子

chloride (Cl^-): ≤20 mg/kg
sulfate (SO₄^2-): ≤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)

商品规格

属性名称	属性值
储存温度 Storage temp.	常温阴凉避光
全球实时库存 Availability √	美国St. Louis ≥ 20 \| 欧洲Eur. ≥ 16 \| 東京Tokyo ≥ 5 \| 香港与北京 ≥ 20

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