See also:

• FLUX (Lat. fluxus, a flowing; this being also the meaning of the English term in medicine, &c.)

FLUX (See also:

• LAT

Lat. fluxus, a flowing; this being also the meaning of the See also:

• ENGLISH

English See also:

• TERM

term in See also:

• MEDICINE

medicine, &c.)  , in metallurgy, a substance introduced in the smelting of ores to promote fluidity, and to remove objectionable impurities in the See also:

• FORM (Lat. forma)

form of a slag . The substances in commonest use are: See also:

• LIME
• LIME (O. Eng. lim, Lat. limes, mud, from linere, to smear)

lime or See also:

• LIMESTONE

limestone, to slag off See also:

• SILICA

silica and silicates, fluor-spar for See also:

• LEAD
• LEAD (pronounced iced)

lead, See also:

• CALCIUM [symbol Ca, atomic weight 40.0 (o= x6)]

calcium and See also:

• BARIUM (symbol Ba, atomic weight 137'37 [0=16])

barium sulphates and calcium phosphate, and silica for removing basic substances such as limestone . Other substances are also used, but more commonly in See also:

• ASSAYING

assaying than in metallurgy . See also:

• SODIUM [symbol Na, from Lat. natrium; atomic weight 23.00 (0=16)]

Sodium and See also:

• POTASSIUM [symbol K (from kalium), atomic weight 39.114 0=16)]

potassium See also:

• CARBONATES

carbonates are valuable for fluxing off silica; mixed with potassium nitrate sodium carbonate forms a valuable oxidizing See also:

• FUSION

fusion mixture; " See also:

• BLACK
• BLACK, ADAM (1784-1874)
• BLACK, JEREMIAH SULLIVAN (1810–1883)
• BLACK, WILLIAM (1841-1898)

black See also:

• FLUX (Lat. fluxus, a flowing; this being also the meaning of the English term in medicine, &c.)

flux " is a reducing flux composed of finely divided See also:

• CARBON (symbol C, atomic weight 12)

carbon and potassium carbonate, and formed by deflagrating a mixture of See also:

• ARGOL

argol with 4 to z its See also:

• WEIGHT

weight of See also:

• NITRE

nitre . See also:

• BORAX (sodium pyroborate or sodium biborate)

Borax is very frequently employed; it melts to a clear liquid and dissolves silica and many metallic oxides . Potassium bisulphate is useful in the preliminary treatment of refractory aluminous ores . Litharge and red lead are used in See also:

• SILVER

silver and See also:

• GOLD
• GOLD [symbol Au, atomic weight 195.7(H = 1),197.2(0 =16)]

gold assays, acting as solvents for silica and any metallic oxides See also:

• PRESENT

present .