… Some of these plates must have their degree of sensitivity enhanced prior to exposure and other plates must have the … degree of hardening of the irradiated sections (thermally) enhanced after irradiation. These goods are put to many uses …
… This salt, very soluble in water, does not exist in the anhydrous state; it is rather unstable and sensitive to heat … chlorous acid (HClO 2 ) : (1) Sodium chlorite (NaClO 2 ). Anhydrous or hydrated (with 3 H 2 O) masses, or aqueous …
… Very volatile and highly inflammable, it is dangerous to inhale and to handle. It is presented in stoneware, metal or … is not very toxic, though the dust is rather dangerous to inhale. It is decomposed by boiling water, but is not …
… mixtures of corundum with pure refractory clay and with anhydrous aluminium silicates, respectively) or of … OXIDE, OTHER THAN ARTIFICIAL CORUNDUM Aluminium oxide (anhydrous or calcined alumina) (Al 2 O 3 ) is obtained by …
… of plastics with materials, other than plastics, which enhance the strength of the plastic material (e.g., embedded … the primary plasticising action will be modified or enhanced. Secondary plasticisers also act as fire …
… by reducing sodium sulphate by means of coal. Either anhydrous, in whitish masses or plates (concentrated or … (4) Ammonium hydrogen sulphide (ammonium hydrosulphide) (NH 4 .HS). Crystalline flakes or needles; very volatile. …
… which have the effect of killing other micro‑organisms or inhibiting their growth. They are used principally for their powerful inhibitory effect on pathogenic micro‑organisms, …
… or plastics, but those of other materials ( other than unhardened vulcanised rubber, ceramics or glass) are also … (a) Taps, cocks, valves and similar appliances made of unhardened vulcanised rubber ( heading 40.16 ), ceramics ( …
