We next reach a consideration of the different qualities of the principal pigments, and can best show these by means of tables.
PIGMENTS LIABLE TO CHANGE UNDER THE INFLUENCE OF SULPHURETTED HYDROGEN, AIR, AND MOISTURE:
_Yellow._--Turner’s yellow, chrome yellow, mineral yellow, Naples yellow.
_White._--Cremintz white, flake white, pearl white.
_Red._--Red lead, purple red, iodine scarlet.
_Green._--Verdigris, Scheele’s green, emerald green, mountain green.
PIGMENTS LITTLE LIABLE TO CHANGE UNDER THE INFLUENCE OF SULPHURETTED HYDROGEN, AIR AND MIXTURE:
_White._--Zinc white, constant white, tin white.
_Red._--Vermilion, red ochre, Indian red, madder lakes.
_Yellow._--Yellow ochre, barium chromate, zinc chromate, aureolin, raw sienna.
_Blue._--Ultramarine, smalt, Thenard’s blue.
_Brown._--Vandyke brown, raw umber, burnt umber, manganese brown, sepia.
_Black._--Ivory black, lamp black, Indian ink, graphite.
_Orange._--Orange vermilion, burnt sienna.
PIGMENT LIABLE TO DETERIORATION WHEN IN CONTACT WITH WHITE LEAD, CHROME OR OTHER LEAD PIGMENT:
_Yellow._--Yellow orpiment, king’s yellow, Indian yellow, gamboge.
_Red._--Iodine scarlet, cochineal, carmine.
_Orange._--Golden antimony sulphide, orange orpiment.
PIGMENTS WHICH ARE LITTLE AFFECTED BY HEAT, AND WHICH MAY BE EMPLOYED WHEN THE MATERIAL HAS TO STAND FIRE:
_White._--Tin white, barium white, zinc white.
_Red._--Red ochre, Venetian red, Indian red.
_Yellow._--Naples yellow, antimony yellow.
_Blue._--Smalt and royal blue, ultramarine.
_White._--Permanent white, _i.e._, baryta white, gypsum, zinc white.
_Red._--The vermilions, light red, Venetian red, Indian red, madder lakes.
_Orange._--Cadmium, orange chrome, Mars orange, burnt sienna, burnt Roman ochre, light red.
_Yellow._--Aureolin, cadmium yellow, lemon yellow, Naples yellow, Mars yellow, raw sienna, yellow ochre, Roman ochre, transparent gold ochre, brown ochre, Indian yellow, Oxford ochre.
_Green._--Oxide of chromium, transparent oxide of chromium, viridian, emerald green, malachite green, verdigris, terre verte, cobalt green, chrome green.
_Blue._--Genuine ultramarine, artificial ultramarine, new blue, permanent blue, cobalt blue, cerulean blue, smalt.
_Brown._--Bone brown, bistre, Prussian brown, burnt umber, Vienna brown, Vandyke brown, Cologne earth, asphaltum, Cassel earth, manganese brown.