HUT46726AHU533086AHU533086AHUT46726AHU T46726 AHUT46726 AHU T46726AHU 533086 AHU533086 AHU 533086AHU 533086 AHU533086 AHU 533086AHU T46726 AHUT46726 AHU T46726A
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Application filed by Nagy Imre KalmarfiledCriticalNagy Imre Kalmar
Priority to HU533086ApriorityCriticalpatent/HUT46726A/en
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A flame proofing liquid contains 80 vol.% sodium or potassium silicate as an aq. soln. salt, with added 10-20% talc and 0-5.6% graphite. The liquid forms a continuous painted coating on articles to be flame-proofed and is solidified by heat.
1,10-phenantrolinates of sodium or potassium 4-nitrophenyl-pyridinyl methanides having indicating properties to water or protonic organic solvents with interval of transition from blue to colorless at pk of 29