CA953732A - Ph indicator and process for preparing same - Google Patents

Ph indicator and process for preparing same

Info

Publication number
CA953732A
CA953732A CA145,924A CA145924A CA953732A CA 953732 A CA953732 A CA 953732A CA 145924 A CA145924 A CA 145924A CA 953732 A CA953732 A CA 953732A
Authority
CA
Canada
Prior art keywords
indicator
preparing same
preparing
same
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA145,924A
Other languages
English (en)
Other versions
CA145924S (en
Inventor
Minoru Takizawa
Keiji Nakajima
Michiei Nakamura
Shojiro Horiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dainichiseika Color and Chemicals Mfg Co Ltd
Original Assignee
Dainichiseika Color and Chemicals Mfg Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainichiseika Color and Chemicals Mfg Co Ltd filed Critical Dainichiseika Color and Chemicals Mfg Co Ltd
Application granted granted Critical
Publication of CA953732A publication Critical patent/CA953732A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/06—Hydroxy derivatives of triarylmethanes in which at least one OH group is bound to an aryl nucleus and their ethers or esters
    • C09B11/08—Phthaleins; Phenolphthaleins; Fluorescein

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Furan Compounds (AREA)
CA145,924A 1971-06-28 1972-06-28 Ph indicator and process for preparing same Expired CA953732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46046288A JPS5033816B1 (de) 1971-06-28 1971-06-28

Publications (1)

Publication Number Publication Date
CA953732A true CA953732A (en) 1974-08-27

Family

ID=12743014

Family Applications (1)

Application Number Title Priority Date Filing Date
CA145,924A Expired CA953732A (en) 1971-06-28 1972-06-28 Ph indicator and process for preparing same

Country Status (6)

Country Link
US (1) US3846452A (de)
JP (1) JPS5033816B1 (de)
CA (1) CA953732A (de)
CH (1) CH572960A5 (de)
DE (1) DE2231462C3 (de)
GB (1) GB1340296A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5384411A (en) * 1991-06-20 1995-01-24 Hewlett-Packard Company Immobilization of PH-sensitive dyes to solid supports
US7910531B2 (en) 2004-06-17 2011-03-22 C2C Technologies Llc Composition and method for producing colored bubbles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US627981A (en) * 1894-10-29 1899-07-04 Alexander Classen Iodin compound and process of making same.
US1922240A (en) * 1931-05-23 1933-08-15 Squibb & Sons Inc Di-phenyl phenolphthalein, substitution products thereof, and method of preparing same
US2933507A (en) * 1959-01-22 1960-04-19 Standard Oil Co 3, 3-bis (p-hydroxyphenyl)-6-carboxyphthalide

Also Published As

Publication number Publication date
US3846452A (en) 1974-11-05
JPS5033816B1 (de) 1975-11-04
DE2231462C3 (de) 1975-01-02
DE2231462A1 (de) 1973-01-18
CH572960A5 (de) 1976-02-27
DE2231462B2 (de) 1974-06-12
GB1340296A (en) 1973-12-12

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