| 摘要 |
An agent (I) for fire-extinguishing and for fire-proofing organic materials comrpises an aq. soln. of pH 7.0-8.0 contg. 300-350 g/l citric acid (II) with addn. of an equimol. amt. of Na and K in the mol. ratio of 0.6-1.0:100. (I) is prepd. by dissolving 300-350 g (II) and an equimol. amt. of Na and K carbonate, bicarbonate, or hydroxide (Na:K ratio as above) in 1:1 water, and adjusting the pH as above with (II) or the other components as necessary. Pref. pH is 7.6 and Na:K ratio is 0.84:100. |
