作者: Michael Graham Carey Cox
DOI:
关键词: Materials science 、 Process engineering 、 Chromium Compounds 、 Head (vessel) 、 Engineering drawing 、 Environmentally friendly
摘要: Match head formulations suitable for the production of safety matches and that may be struck anywhere are described in which chromium compounds, sesqui-based phosphorus sulphur compounds oxides zinc absent. In their place is use either amorphous or, case match matches, an iron phosphade known as ferrophosphorus. These environmentally friendly both manufacture use. Environmentally brightly colored also described.