Has Des-Case evaluated alternative silica gels?
Des-Case constantly evaluates new and unique desiccants to find the safest products that represent the best value for end users. The following data were considered when exploring ‘blue’ versus alternates. The cobalt compound used in Des-Case breathers has not been specifically identified as a possible carcinogen. The bulk of scientific research to date does not support a link between cobalt chloride and cancer. The same is not true of phenolphthalein, the chemical change agent most commonly used in the yellow/orange indicating gel, also known as 3,3-Bis(4-hydroxphenyl)phthalide. This gel is used in various applications, including desiccant breathers currently being marketed by other manufacturers. A review of the MSDS for phenolphthalein as produced by JT Baker indicates that this substance is a suspected cancer hazard. A recent study conducted by the National Toxicology Program (TR-465) concluded, “There was clear evidence of carcinogenic activity of phenolphthalein.” The Internationa
