and hydroxide of an alkali salt, and having content of the sulfurous acid of 10 to 25 mass%, content of the silicic acid or the silicate of 1 to 15 mass% and a ratio between potassium ion concentration ([K]) and sodium ion concentration ([Na]), ([K]/[Na]) of 2/5 to 2/1.SE...
In general, for example, it is advisable that the amount of the hyposulfurous acid or a salt be adjusted usually to not more than30w/w %, and preferably not more than20w/w %, relative to the weight of water. From the productivity viewpoint, among others, it is advisable that the ...
sorbic acid or a salt thereof, and hydroxide of an alkali salt, and having content of the sulfurous acid of 10 to 25 mass%, content of the sorbic acid or the salt thereof of 0.5 to 1.5 mass% and a ratio between potassium ion concentration ([K]) and sodium ion concentration ([Na])...