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Umuti werekana wa fenolufutalini

Isobanujwe
Icyerekezo cya MOS: Ikintu gakondo cyerekana asidi na baze, kidafite ibara munsi ya pH 8,2 kandi kigahinduka umuhondo w'umutuku cyangwa magenta hejuru ya pH 10. Ni cyo cyerekana gisanzwe mu gupima asidi ikomeye na baze ikomeye. Umuti wa 1 % muri etanoli, mu cupa rifite agatonyanga kugira ngo ubipime neza.
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