PROBLEM TO BE SOLVED: To provide a granular effervescent bath salt generating considerably fine bubbles for a long time to such an extent that a bath has white turbid appearance as a whole, and thus providing a high concentration of carbon dioxide gas.SOLUTION: The granular effervescent bath salt contains a carbonate and an organic acid. The bath salt contains the following components (A) and (B): (A) 20-70 mass% of a dialkali metal carbonate salt having an average particle diameter of 100-750 &mum and (B) 30-80 mass% of tartaric acid, or tartaric acid and malic acid, wherein 75-100 mass% of dialkali metal carbonate salt is contained in the total amount of carbonate.COPYRIGHT: (C)2011,JPO&INPIT【課題】浴槽全体が泡で白く濁ったような外観を呈するほどに極めて微細な泡が長時間発生するため高い炭酸ガス濃度が得られる粒状発泡性浴用剤を提供する。【解決手段】炭酸塩及び有機酸を含有する粒状発泡性浴用剤であって、次の成分(A)及び(B):(A)平均粒子径が100~750μmの炭酸ジアルカリ金属塩 20~70質量%、及び(B)酒石酸、又は酒石酸及びリンゴ酸 30~80質量%を含有し、炭酸塩全量中の炭酸ジアルカリ金属塩量が75~100質量%である粒状発泡性浴用剤。【選択図】なし
