NIST185I

邻苯二甲酸氢钾

NIST^® SRM^® 185i, pH standard

• 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號碼: MFCD00013070
• 分類程式碼代碼: 41116107
• PubChem物質ID: 329818718
• NACRES: NA.24

属性

• 等級: certified reference material
• 品質等級: 100
• agency: suitable for SM 2310; suitable for SM 2320
• 形狀: crystals
• 包裝: pkg of 60 g
• 製造商／商標名: NIST^®
• mp: 295-300 °C (dec.) (lit.)
• SMILES 字串: [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 密鑰: IWZKICVEHNUQTL-UHFFFAOYSA-M

说明

一般說明

SRM 185I is certified as a p^H standard [p^H(S)].   

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

SRM 185I _SDS

SRM 185I _CoA

應用

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

特點和優勢

• SRM 185I is available with certified p^H(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.

其他說明

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

法律資訊

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

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

安全信息

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: 387.1 °F - Pensky-Martens closed cup
• 閃點（°C）: 197.3 °C - Pensky-Martens closed cup