NIST185I

Phthalate monobasique de potassium

NIST^® SRM^® 185i, pH standard

• Synonyme(s) : Acide phtalique monopotassium salt, Biphthalate de potassium, Hydrogénophthalate de potassium, KHP
• Formule linéaire : HOOCC₆H₄COOK
• Numéro CAS: 877-24-7
• Poids moléculaire : 204.22
• Numéro Beilstein : 3637128
• Numéro MDL: MFCD00013070
• Code UNSPSC : 41116107
• ID de substance PubChem : 329818718
• Nomenclature NACRES : NA.24

Propriétés

• Qualité: certified reference material
• Niveau de qualité: 100
• Agence: suitable for SM 2310; suitable for SM 2320
• Forme: crystals
• Conditionnement: pkg of 60 g
• Fabricant/nom de marque: NIST^®
• Pf: 295-300 °C (dec.) (lit.)
• Chaîne SMILES: [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
• Clé InChI: IWZKICVEHNUQTL-UHFFFAOYSA-M

Description

Description générale

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

Application

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

Caractéristiques et avantages

• 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.

Autres remarques

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

Informations légales

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

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

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 387.1 °F - Pensky-Martens closed cup
• Point d'éclair (°C): 197.3 °C - Pensky-Martens closed cup