Civil Engineering Reference
In-Depth Information
Table 18.2:
Pigments in house paint
Pigment
Constituents
Comments
White pigments:
Zinc white
Zinc oxide
Fungicidal effect in larger amounts, can only
be prepared synthetically, usually from
recycled zinc
At an experimental stage
Highly poisonous
Can only be prepared synthetically
From natural resources, not very strong in
oil paint
Glass white
Lead white
Titanium white
Chalk
Ground, recycled glass
Basic lead carbonate
Titanium oxide
Calcium carbonate
Yellow pigments:
Ferric oxide yellow
Yellow ochre
Hydrated ferric oxide
Hydrated ferric oxide
Originally prepared as an earth colour
Highly tolerant externally, originally an
earth pigment prepared from an iron felspar
Highly poisonous
Highly poisonous
Cadmium yellow
Chrome yellow
Cadmium sulphide
Lead chromate, lead
sulphate
Zinc chromate, potassium
chromate
Lead antimonate
Zinc yellow
Poisonous, can only be prepared
synthetically
Highly poisonous
Naples yellow
Red pigments:
Red ochre
Iron oxide red, English
red
Chrome red
Cadmium red
Ferric oxide
Ferric oxide
Originally an earth pigment
Originally an earth pigment, by-product of
iron production
Highly poisonous
Highly poisonous
Basic lead chromate
Cadmium sulphide-
selenide
Lead oxide
Red lead
Highly poisonous, hinders rust
Blue pigments:
Prussian blue
Ferric ferrocyanide
Poisonous, synthetically prepared from
ferric chloride and 'Blutlaugensalz'
(German), or potassium ferrocyanide
Occurs naturally as the mineral lazurite.
Prepared synthetically with a mixture of
kaolin, soda, sodium sulphate, sulphur,
resin, charcoal and quartz
Poisonous
Siccative, somewhat poisonous, occurs
naturally as a mineral
Poisonous, prepared from Prussian blue and
heavy spar
Ultramarine
Sodium aluminium
silicate
Manganese blue
Cobalt blue
Barium manganate
Cobalt aluminate
Mineral blue
Ferric ferrocyanide heavy
spar
Green pigments:
Green earth
Chromium oxide
green, viridian
Silicates containing iron
Chromium oxide
Originally an earth pigment
Poisonous, can only be prepared
synthetically
