… soluble in water and very toxic. It is used in organic synthesis. (b) Mercuric iodide (mercury di‑iodide, red … Also used as a nitration aid, and as a catalyst in organic synthesis, in the preparation of mercury fulminate or …
… optical microscope normally comprises : (I) An optical system consisting essentially of an objective designed to … which further magnifies the observed image. The optical system usually also incorporates provision for illuminating …
… gases are conducted. (2) Watertube boilers, in which a system of watertubes is surrounded by the flue gases; the … of types (1) and (2) above. In some boilers, the systems of tubes are connected by a collector to one or more …
… devices (such as magnetos, coils and contact breakers) synchronised with the motor, for supplying high tension … e.g., in a vertical line (upright or inverted), in two symmetrical obliquely opposed rows (V-engines), horizontally …
… here. * * * The heading does not cover certain synchronous motors used for power factor improvement, even though they are often called “synchronous capacitors” ( heading 85.01 ). ° ° ° …
… ( excluding camping goods of heading 63.06 ). (12) Tea cosy covers. (13) Pincushions. (14) Boot, shoe, corset, etc. … treated with activated carbon or having a central layer of synthetic fibres. (24) Rosettes (e.g. those awarded at …
… pearls, of precious or semi-precious stones (natural, synthetic or reconstructed), even if such parts constitute … includes leather coated with a thin layer of plastics or synthetic rubber which is invisible to the naked eye …
… in navigation. (2) Drafting machines generally using a system of parallelograms, with or without drawing boards or … a measuring rod, amplifying dial and transmission system (rack, gear, lever, spring, pneumatic, hydraulic, …
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