Wako Pure Chemical Industries, Inc.

Kenzi Iwata

Yoshitsugu Sakata

Tadashi Hamanaka

Yoshinobu Miyashita

Hiroyuki Kodera

Shinogu Fukahori

Misato Nakaue

A molded acidic gas absorbent produced by press molding powders, etc. of calcium hydroxide and one or more powders, etc. of alkali metal hydroxides and alkaline earth metal hydroxides except for calcium hydroxide, impregnating the molded article with water, followed by heat treatment while maintaining a predetermined amount of water therein is effective for absorbing an acidic gas such as CO.sub.2 in air and a narcotic gas.

Acidic gas absorbent and process for production thereof

Stability of a sensitivity test disk obtained by impregnating a disk carrier with an aqueous solution of antibacterial agent and drying is improved by incorporating a water-soluble polymer material having film-forming properties in the disk carrier.

Stabilized sensitivity test disk

A composition comprising a 9-fluorenone-2-diazonium salt, an acid or acidic salt which is solid at normal temperatures, and if necessary an anionic surface active agent can produce a vivid red color instantly by reacting with urobilinogen without interfered with bilirubin.

Growing community of inventors

Higashiosaka, Japan

Kenzi Iwata