contact sulphuric acid
21Stanford R. Ovshinsky — (1922 ) is an American engineer, inventor, and physicist. He has been involved in the development of amorphous silicon semiconductor materials, which gave rise to a whole new segment of material engineering, aiding in the construction of… …
22N2O5 — Nitric Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as,… …
23Nitric — Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as, nitric… …
24Nitric anhydride — Nitric Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as,… …
25Nitric oxide — Nitric Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as,… …
26nitric pentoxide — Nitric Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as,… …
27NO — Nitric Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as,… …
28NO2 — Nitric Ni tric, a. [Cf. F. nitrique. See {Niter}.] (Chem.) Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with {nitrous} compounds, the element has a higher valence; as,… …
29Electrochemical cell — A demonstration electrochemical cell setup resembling the Daniell cell. The two half cells are linked by a salt bridge carrying ions between them. Electrons flow in the external circuit. An electrochemical cell is a device capable of either… …
30Rio Tinto Group — Rio Tinto Limited plc Type Public company (ASX: RIO, LSE:  …
