Describe :
Purple Litmus Paper for Measuring PH - Universal indicator paper - pH measuring paper
Product description Material: Indicator paper
Specification: 80 pieces/pack, 1 box Box of 20 packs.
Product information: Litmus paper is paper soaked in a solution of ethanol or water with a colorant extracted from lichen roots, with a...
Filter paper (Qualitative/Quantitative, Newstar)
Origin: China
This qualitative and quantitative filter paper has a circular shape. When used, it can be folded and put into a funnel for filtering. Commonly used sizes are 90 and 110mm.