Title:
残留塩素濃度測定用組成物
Document Type and Number:
Japanese Patent JP4656603
Kind Code:
B2
Abstract:
To attain a composition for measuring residual chlorine concentration capable of preventing crystallization of a coloring reagent in a chemical solution under temperature conditions of 5°C, provided is a composition for measuring residual chlorine concentration in sample water including one or more coloring reagents selected from the group consisting of a dialkyl benzidine compound and a tetraalkyl benzidine compound, an acid, and an alcohol compound. The alcohol compound is selected from the group consisting of a monohydric alcohol, a dihydric alcohol, and a trihydric alcohol, for example, and the composition is prepared to contain the alcohol compound in a content by weight of 20 to 100 times that of the coloring reagent.
Inventors:
Hiroyuki Mitsumoto
Application Number:
JP2005283546A
Publication Date:
March 23, 2011
Filing Date:
September 29, 2005
Export Citation:
Assignee:
Miura Industry Co., Ltd.
International Classes:
G01N31/22; G01N21/77; G01N21/78; G01N31/00; G01N33/18
Domestic Patent References:
| JP56076048A | ||||
| JP6022794A | ||||
| JP8304396A | ||||
| JP9133671A | ||||
| JP6165696A | ||||
| JP63199270A | ||||
| JP49133092A |