… Sulphides; polysulphides, whether or not chemically defined. …
Explanatory notes
… 28.30 ‑ Sulphides; polysulphides, whether or not chemically defined. … “sulphydrates” (hydrosulphides) is sometimes applied to the acid sulphides. Sulphides of non‑metals are excluded ( …
… Sulphides of non-metals; commercial phosphorus trisulphide. …
Explanatory notes
… 28.13 ‑ Sulphides of non-metals; commercial phosphorus trisulphide. 2813.10 ‑ Carbon disulphide 2813.90 ‑ Other The most important of these … of sulphur vapours on burning carbon. Colourless, toxic liquid (specific gravity about 1.3). Not miscible with …
… Hydrogen peroxide, whether or not solidified with urea. …
Explanatory notes
… 28.47 ‑ Hydrogen peroxide, whether or not solidified with urea. Hydrogen peroxide (H 2 O 2 ) is obtained by electrolytic oxidation of sulphuric acid followed by distillation, or by …