Formaldehyde Test Kits
Formaldehyde, a toxic substance, is used in the following applications: metal plating baths, textile treatments, biological specimen preservatives, and disinfectants of medical equipment. Commercial formaldehyde gas is readily soluble in water.
The Purpald Method:
Purpald® is subject to fewer interferences than Schiff's reagent or chromotropic acid procedures. A purple-colored complex is formed when Purpald in alkaline solution reacts with formaldehyde. Results are expressed as ppm (mg/L) CH2O. Shelf-life of the Purpald...Catalog No.: W2182-1 | W2182-1AS | W2182-2 | W2182-3 | W2182-4 | W2182-5 | W2460-27A | W2460-27B | W2460-18G | W2460-18H | W2460-18J