Buffer solution
(di-sodium hydrogen phosphate/potassium dihydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (20°C) Certipur®

Phenolphthalein indicator ACS,Reag. Ph Eur
CAS #: 77-09-8 Hill Formula: C₂₀H₁₄O₄ Molar Mass: 318.32 g/mol Grade: ACS,Reag. Ph Eur EC Number: 201-004-7

Chlorobenzene for synthesis. CAS 108-90-7, chemical formula C₆H₅Cl.
Synonyms: Phenyl chloride
Hill Formula: C₆H₅Cl EC Number: 203-628-5 CAS #: 108-90-7 Chemical Formula: C₆H₅Cl Molar Mass: 112.56 g/mol

Sodium hydroxide pellets for analysis EMSURE®
Synonyms: Soda caustic
Hill Formula: HNaO EC Number: 215-185-5 CAS #: 1310-73-2 Chemical Formula: NaOH Molar Mass: 40.00 g/mol

Buffer solution
(boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) Certipur®

pH-indicator strips pH 0 – 14 Universal indicator
non-bleeding pH 0 – 1 – 2 – 3 – 4 – 5 – 6 – 7 – 8 – 9 – 10 – 11 – 12 – 13 – 14 MQuant®