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NIST185I

邻苯二甲酸氢钾

NIST® SRM® 185i, pH standard

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别名:
KHP, 苯二甲酸氢钾, 邻苯二甲酸 单钾盐, 酞酸氢钾
线性分子式:
HOOCC6H4COOK
CAS号:
877-24-7
分子量:
204.22
Beilstein:
3637128
MDL编号:
MFCD00013070
UNSPSC代码:
41116107
PubChem化学物质编号:
329818718
NACRES:
NA.24

等级

certified reference material

质量水平

100

Agency

suitable for SM 2310
suitable for SM 2320

形式

crystals

包装

pkg of 60 g

制造商/商品名称

NIST®

mp

295-300 °C (dec.) (lit.)

SMILES字符串

[K+].OC(=O)c1ccccc1C([O-])=O

InChI

1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1

InChI key

IWZKICVEHNUQTL-UHFFFAOYSA-M

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一般描述

SRM 185I is certified as a pH standard [pH(S)].   

Each unit of SRM 185I consists of 60 g of potassium hydrogen phthalate.

SRM 185I _SDS

SRM 185I _CoA

应用

Potassium hydrogen phthalate standard reference material (SRM) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems.

特点和优势

  • SRM 185I is available with certified pH(S) values and their expanded uncertainties. 
  • Certified values are derived from potential measurements of cells without liquid junction by the primary measurement method. 
  • Certified values are metrologically traceable to the International System of Units (SI) of amount-of-substance and mass and to the definition of single ion activity. 
  • The NIST certificate is provided with maintenance, storage, handling, and use instructions.

其他说明

Please download a current certificate at nist.gov/SRM for current analytes and certified values.

法律信息

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology

WGK

WGK 1

闪点(°F)

387.1 °F

闪点(°C)

197.3 °C

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