grade
certified reference material
Quality Segment
agency
suitable for SM 2310, suitable for SM 2320
form
crystals
packaging
pkg of 60 g
manufacturer/tradename
NIST®
mp
295-300 °C (dec.) (lit.)
SMILES string
[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
General description
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
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 pH measuring systems.
Features and Benefits
- 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.
Other Notes
Please download a current certificate at nist.gov/SRM for current analytes and certified values.
Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
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wgk
WGK 1
flash_point_f
387.1 °F - Pensky-Martens closed cup
flash_point_c
197.3 °C - Pensky-Martens closed cup
存储类别
11 - Combustible Solids