US$ 149.50
Cross wires set inside a 10mm aperture on a 75mm circular black metal screen
with a single-point central support stabilizing the rail
48 borosilicate test tubes
and reducing-agent chemistry
ACS Grade Potassium Acid Phthalate Crystals, 500g Chemistry_Molecular Model Sets Cross wires set inside aUsed as the primary standard for acid base titration calibration, this 500g of ACS grade potassium acid phthalate (KHP) crystals serves analytical chemistry and quantitative analysis labs.