OXYGEN INDICATOR

Improved O2 indicator is prepd. from dye (chemical compounds (I) and (II)) where: -Y+is -O+=, -S+= or -N+-Z (Z = H2, C1-4 alkyl or C6-7 allyl gp.); R1-R6 is H2, C1-4 alkyl or nitro radicals; R7-R10 is H2 or C1-4 alkyl gp.; X is halogen; and M is alkali metal. The product is obtained from mixing dye,...

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Bibliographic Details
Main Authors YOSHIKAWA YOSHIO, NAWATA TAKANARI, GOTO MIKIO, KONDO YUKIO
Format Patent
LanguageEnglish
Korean
Published 22.10.1983
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:Improved O2 indicator is prepd. from dye (chemical compounds (I) and (II)) where: -Y+is -O+=, -S+= or -N+-Z (Z = H2, C1-4 alkyl or C6-7 allyl gp.); R1-R6 is H2, C1-4 alkyl or nitro radicals; R7-R10 is H2 or C1-4 alkyl gp.; X is halogen; and M is alkali metal. The product is obtained from mixing dye, thickening agent (III), and solvents (IV). III is sodium-carboxyl-methyl-cellulose, hydroxy-ethyl-cellulose, methyl-cellulose, polyvinylalcohol, arabia gum powder, dextrin, or casein. The required amount of III is 0.05-10 wt.%. IV is H2O alcohol, or their mixture. The addition of surfactants (0.05-5 wt.%) makes the product stable and non-agglomerating.
Bibliography:Application Number: KR19800002615