This compound is sold in small (*) pellets which dissolve in water, releasing a lot of heat, and generating lye.
Lysis buffer is a mix of S-D-S and this compound. White liquor, used in pulping paper, consists of this compound and sodium sulfide. It is produced along with hydrogen and chlorine in the chlor-alkali process, and it turns bauxite into alumina in the Bayer process. In industry, this compound is just called "caustic."  This compound is sold in small (*) pellets which dissolve in water, releasing a lot of heat, and generating lye. Stocks of this compound are often made to titrate weak acids, and it reacts with HCl [H-C-L] to make water and table salt. For 10 points, name this strong base used in drain cleaner, which has formula NaOH.
Lysis buffer is a mix of S-D-S and this compound. White liquor, used in pulping paper, consists of this compound and sodium sulfide.
sodium hydroxide [or NaOH until it is read; or caustic until it is read; prompt on partial answer]