Potassium phthalate monobasic
SIAL/14659 - Standard for quantitative NMR, TraceCERT®
Synonym: KHP; Phthalic acid monopotassium salt; Potassium biphthalate; Potassium hydrogen phthalate
CAS Number: 877-24-7
Empirical Formula (Hill Notation): C8H5KO4
Molecular Weight: 204.22
EC Number: 212-889-4
MDL Number: MFCD00013070
Linear Formula: HOOCC6H4COOK
Product Type: Chemical
application(s) | cleaning products cosmetics environmental flavors and fragrances food and beverages personal care |
description | qNMR Standard for D2O (8.2 ppm / 7.5 ppm) |
format | neat |
grade | TraceCERT® |
certified reference material | |
Standard for quantitative NMR | |
InChI | 1S/C8H6O4.K/c9-7(10)5-3-1 |
InChI key | IWZKICVEHNUQTL-UHFFFAOYSA |
mp | 295-300 °C (dec.) (lit.) |
pH | 4 |
product line | TraceCERT® |
Quality Level | 300 ![]() |
shelf life | limited shelf life, expiry date on the label |
SMILES string | [K+].OC(=O)c1ccccc1C([O-] |
technique(s) | gas chromatography (GC): suitable |
qNMR: suitable |
General description: | This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ. Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate. Download your certificate at: http://www.sigma-aldrich. |
Legal Information: | TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC |
Other Notes: | Chemical Shift: ~7-8 ppm (chemical shifts may slightly vary depending on the experimental conditions) suitable NMR solvents: D2O, MeOD |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | 387.1 °F - Pensky-Martens c |
Flash Point(C) | 197.3 °C - Pensky-Martens c |
mp | 295-300 °C (dec.) (lit.) |
UNSPSC | 41116107 |