Abstract: A light-bulb-shaped fluorescent lamp accommodates in an outer housing that includes a transparent globe and a case, a bent fluorescent tube that has a pair of electrodes at both ends and contains an amalgam and a rare gas, and an electronic lighting circuit lighting the fluorescent tube. A light-bulb-shaped fluorescent lamp which has high conformity to regular light bulbs and realizes the same brightness as a regular 60 W light bulb while consuming less power than a conventional light-bulb-shaped fluorescent lamp is provided by setting the external diameter of the globe in the range of 55-65 mm, the total length of the globe in the range of 65-80 mm, the internal diameter of the fluorescent tube in the range of 7-11 mm, and the distance between the electrodes in the range of 200-280 mm.

Abstract: A method of purifying the raw brine used in the elecrolysis of the aqueous NaCl or KCl solution by removing the Mg and Ca ions from said brine, which comprises contacting said brine with a member selected from the group consisting of(a) the chelate-forming water-insoluble resins capable of forming an intramolecular complex with the Mg and Ca ions, said resins being selected from the class consisting of the styrene-butadiene copolymer resins containing the group >N--CH.sub.2 COOH, the epichlorohydrin polymer resins containing the group >N--CH.sub.2 COOH, the N-phenyl glycine-glycidyl methacrylate copolymer resins containing the group >N--CH.sub.2 COCH and the styrene-divinylbenzene copolymer resins containing the group >N--CH.sub.2 COOH; and(b) the water-insoluble adsorbent solids adsorptively supporting a chelate-forming compound selected from the group consisting of the aminoacetic acids containing at least one >N--CH.sub.

Abstract: A method of purifying the raw brine used in the electrolysis of the aqueous NaCl or KCl solution by removing the Mg and Ca ions from said brine, which comprises contacting said brine with a member selected from the group consisting ofA. the chelate-forming water-insoluble resins capable of forming an intramolecular complex with the Mg and Ca ions said resins being selected from the class consisting of the styrene-butadiene copolymer resins containing the group .ltoreq.N--CH.sub.2 COOH, the epichlorohydrin polymer resins containing the group >N--CH.sub.2 COOH, the N-phenyl glycine-glycidyl methacrylate copolymer resins containing the group >N--CH.sub.2 COOH and the styrene-divinylbenzene copolymer resins containing the group >N--CH.sub.2 COOH; andB. the water-insoluble adsorbent solids adsorptively supporting a chelate-forming compound selected from the group consisting of the aminoacetic acids containing at least one >N--CH.sub.