tetrahydrofuran fur die spektroskopie 1l warchem Komplexe von Vitaminen und Mineralstoffen PMID: 29546641

PMID: 29546641

With 10 ml per package

Pour 2 - 3 g of tea with 200 ml of 70 - 80°C hot water and let steep for 2 - 3 minutes

Zinc to keep the skin in good condition

tetrahydrofuran fur die spektroskopie 1l warchem Komplexe von Vitaminen und Mineralstoffen PMID: 29546641Name (English): Tetrahydrofuran Synonyms: Tetrahydrofuran, THF Species: for spectroscopy Chemical formula: CHO Molar mass: 72. 11 g mol EC number: 203 726 8 CAS number: 109 99 9 Quality parameters TESTED VALUE NORM Content (GC) min. 99. 8% Acidity max. 0. 0005 meq g Residue on evaporation max. 0. 0005 % Water (KF) max. 0. 02% UV transmission (1cm, water) 250 nm min. 70% 260 nm min. 80% 280 nm min. 95% 300 nm min. 99% FTIR spectrum as prescribed