(NkONCENTRIROWANIE SERNOJ KISLOTY (B=s Lphuric acid concentration - (NpERRI[(B, (Np(B.s; (NsNELLING(B, (Nf(B.s; (N|GIZ(B, (Nd(B. (Na(B.s ((NlENINGRAD (B:s (NwSEHIMPROM(B-(Nwsnh(B-(Nsssr(B,s, 1930)
(NpRILOV(B. (NST(B. (Nw(B.(Nn(B. (N{ULXC (B"(NiSPYTANIE RABOTY APPARATA kESSLERA(B".s
Keywords: (NhIMIQs -- (NsERNAQ KISLOTAs