NOVELTY – Universal pH indicator is impregnated in qualitative filter paper utilizing vegetable extract with polar solvent selected from water, methanol, ethanol, acetone and normal-butanol or its mixture, and Morus nigra (mulberry), Myrciaria cauliflora (jabuticaba), Syzygium cuminii (jambolan) and Vitis vinifera (grape) that are set in double-sided adhesive tape based on polyvinyl chloride film (PVC). USE – Universal pH indicator used for rapid acquisition of information related to pH value of sample.
A89 (Photographic, laboratory equipment, optical – including electrophotographic, thermographic uses.); F09 (Paper-making production of cellulose, chemical treatment of wood – including chipboard and fibre-board (D21).); S03 (Scientific Instrumentation)