| 摘要 |
PROBLEM TO BE SOLVED: To obtain an aqueous solution composition, capable of emitting a small amount of a gas, ensuring a sufficient vacuum state and sufficiently manifesting performances of an apparatus and hardly causing corrosion in steel materials or copper materials when adding, e.g. Na2 S2 O3 as an inhibitor to a five-component system absorbing solution and using the resultant solution as an absorbing solution for an absorption cold water heating machine. SOLUTION: This aqueous solution composition contains a thiosulfate in an amount of 100-1,000 ppm expressed in terms of sodium thiosulfate and 0.05-0.45 wt.% alkali metallic hydroxide compound in the aqueous solution composition, containing LiBr, LiI, LiNO3 , LiCl-H2 O and used as an absorbing solution for an absorption cold water heating machine. |
