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- How do chemical catalyst companies avoid light?How do chemical catalyst companies avoid light? The light shielded storage of chemical catalysts mainly involves the following methods:Light avoidance measuresUse brown glass containerLight shielded storage is suitable for all light-sensitive catalysts, such as polyurethane rigid foam catalysts, which need to be stored in a light shielded environment. It is recommended to use brown bottles or...0 Comentários 0 Compartilhamentos 1984 Visualizações