Pigment White, PW
Color Index Pigment Codes, Color index Number And Chemical Composition
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White
Historic White Pigments without Color Index Names
Historic White Pigments Without C.I. Names | CI Natural White | CI Pigment White| KEY| Top ^
Color Index Name Code
CI Pigment Name
Common, Historic and Marketing Names
 C.I.
Number
#
Chemical Composition
Color Description & Long Term Effects of Light†
Opacity
Light Fastness
Oil
Absorption
 Toxic
Notes
N/A Bone White Bone Ash [KP];
Bone White

see Hartshorn		 N/A Bone calcined in the presence of oxygen until all organic matter has been burned away. Mostly tribasic phosphate with traces of calcium carbonate and other salts. off white - - - A Used to prepare paper for silver piont
N/A Ceramic White Ceramic White [HO];
Strontium Titanate;
Strontium Titanate Nano Powder;
Tausonite*		 N/A Strontium Titanate; Titanic Acid Strontium Bright pure white 1-2** I - A Modern pigment
*Tausonite is a rare natural form found in siberia (Ref).
**Not quite as opaque as Titanium White but more opaque than Zinc White
N/A Diamond Powder Diamond Powder [KP] N/A Powdered Diamonds Translucent white 3-4* I - A * depends on binder medium.
N/A Egg Shells Eggshell White [KP];
Calx de tistis ovorum;
Shell White		 N/A Powdered egg shells; mostly calcium carbonate; Brown eggs contain Ooporphyrin with a small amount of biliverdin with 2-3% eggshell pigment; (Ref) White; light brown*; light blue* 1 I* - A "an incomparable white that can not be surpassed by lead white or any other white in the world if it is made carefully and well" - Secreti di Don Alessio Piemontese (Secrets of Alessio Piemontese), 1557. (Ref);
* Any coloring other than white is probably fugitive
N/A Hartshorn Hart's Horn;
Hartshorn;
Antler of Hart;
Horn of hind

see Bone White		 N/A The horn of the male Europeon red deer Calcined in the presence of oxygen to burn off all organic matter and produce white; Chemically about 80% tribasic phosphate with some calcium carbonate. Other deer horns or bone may also have been used.
see Bone White

"Earthy" White

 - - - A Used for mixing with pigments that can't be mixed with lead white i.e. Orpiment, etc.;
Calcined hartshorn is 'a useful earthy white for watercolors' according to Tingry (1830) . (Ref)
N/A Lead Chloride Hydroxide laurionite;
Lead chloride hydroxide;
Pattinson’s White
77593 Lead chloride hydroxide - - - - C -
N/A Lead Phosphite lead Phosphite 77620 lead phosphite - - - - C Anti-corrosive
N/A Lime White Armenini's White;
Bianco di San Giovanni [NP];
Cennini's White;
Lime White;
Portlandite;
Saint John's white
N/A Mostly Calcium hydroxide with smaller amounts of Calcium Carbonate bright white 1* I N/A B Excellent white for fresco (Ref);
*transparency can depend on binder
N/A Oyster Shells Shell White;
Gofun;
Gofun Shirayuki [KP];
Japanese Pearl White;
Mother of Pearl [KP];		 N/A Powdered oyster shells; Mostly calcium carbonate in the form of an aragonite (Ref); White may have a iridescence? 3 I - A Has been used in Japan for centuries
CI Natural White
Historic White Pigments Without C.I. Names | CI Natural White | CI Pigment White | KEY| Top ^
Color Index Name Code
CI Pigment Name
Common, Historic and Marketing Names
 C.I.
Number
#
Chemical Composition
Color Description & Long Term Effects of Light†
Opacity
Light Fastness
Oil
Absorption
 Toxic
Notes
NW1 Guanine

Dew Pearl;
Essence d'orient;
Fischsilber;
Fish Silver [KP];
Guanin;
Guanine;
Guanine enol;
Mearlmaid;
Natural Fish Silver;
Natural Pearl Essence;
Naturon;
Natural White 1;
Pathocicin;
Perlglanzmittel;
Purine;
Stella Polaris

75170

Guanin, Iminoxanthin, 2-Amino-6-oxypurin;
Pearl essence extracted from scales of fish, mostly from herring and sardines.;
CAS 73-40-5

 Iridescent white to silver to yellow off white 4 - - A Usually used to give iridescence or pearl lustre to other pigments (Ref)
CI Pigment White
Historic White Pigments Without C.I. Names | CI Natural White | CI Pigment White | KEY| Top ^
Color Index Name Code
CI Pigment Name
Common, Historic and Marketing Names
 C.I.
Number
#
Chemical Composition
Color Description & Long Term Effects of Light†
Opacity
Light Fastness
Oil
Absorption
 Toxic
Notes
PW1 Lead White Acrusite*;
Basic Lead Carbonate;
Berlin white;
Bly-spat;
Ceruse White [NP];
Cerussa Native*;
Cerussite* (Natural Lead White) [NP];
Cremser White;
Cremnitz White [OH, WN];
Dutch White Lead;
Flake White [BL, BR, KP, MA, NP, RGH, SE, WL, WN];
Flake White Extra Fine [RGH];
Flemish white;
Foundation White;
Genoa white;
Hamburg White;
Holland white;
Krems white;
Kremser white;
Kremniz White;
Lead Spar
Lead White [NP];
Lead White #2 [NP];
London White;
Nottingham White;
Pigment White 1;
Psmithium;
Silver White [HO];
Stack Process White Lead [NP];
Stack Process White Lead (Dutch Method) [NP];
Slate White;
Snowflake White;
Venetian White [NP];
Vienna White;
White lead		 77597 Basic Lead Carbonate (Ref);
CAS 37361-76-5		 White 1 I 10-15 C May be slightly yellowish in oils due to binder. May darken if exposed to sulfur fumes.
Historical names referred to specific method or place of manufacture. Today these names are mostly just marketing terms.
* Cerussite ia a natural mineral form (Ref)
PW2 Lead Sulphate White Bartlett White Lead;
Sublimed White Lead;
Freeman's Lead;
Pigment White 2;
Silver Lead;
Purex White;
Lead Bottoms;
Lewis White Lead;
White Lead;
White Lead Sulfate		 77633 Lead Sulphate; Lead
oxide sulphates;
CAS 7446-14-2		 Grayish to White 2 I 10-15 C Works as a drier in oil paints;
Some common names, chemical data, and pigment info is confusing or conflicting and seem to refer to PW2 and PW3 interchangeably.
PW3 Basic Lead Sulphate White Anglesite;
Bleisulfat;
Basic Lead Sulphate;
Fast White;
Flemish White;
Freeman White;
Freeman's White Lead;
Lanarkite;
Lead Bottoms;
Lead Dross;
Lead Vitriol;
Milk White;
Mulhaus White;
Mulhouse White;
Natural Anglesite;
Pigment White 3;
Sulfate de plomb;
Sulfuric Acid Lead Salt;
White Lead		 77630 Natural Mineral Anglesite (Ref) (Ref); lead salt of sulfuric acid; Lead(II) Sulphate; Basic Lead Sulphate (Ref), (Ref);
CAS CAS No: 7446-14-2		 Grayish to White 2 I 10-15 C Works as a drier in oil paints
PW4 Zinc Oxide White Blanc de Zinc [LB];
Chinese White [AS, RT, DS, LK, MA, RT, WN];
Mixing White [WN];
Neo-Zinc White [HO];
Permanent Chinese White [MR, SCH];
Pigment White 4;
Sinopia Zinc White, transparent [SI];
Snow Flowers;
Snow White;
Transparent Mixing White [LQ];
Transparent Mixing White (Zinc White) [LQ];
Zinc Buff Yellowish*[WL];
Zinc Flowers;
Zinc Oxide [GEN, KA, NP];
Zinc Mixing White [TA];
Zinc White [GEN, BL, CH, DR, DS, DV, GB, GO, GR, GU, KP, LB, LK, MA, MG, MR, MW, OH, PF, RGH, RT, SCH, SE, SH, UT, WN];
Zink White [SCH]		 77947 Inorganic; Zinc Oxide;
CAS 1314-13-2/
91315-44-5		 Bluish gray white;
*light pale yellow		 2 I 10-22 A New studies suggest zinc white may lead to premature cracking in oils (Ref)
PW5 Lithopone

Albanol;
Beckton White;
Blanc de Titane [LB];
Charlton white;
Diamond White;
English White;
Graves White;
Griffith's white;
Jersey lily white;
Knight's white;
Lithopone [GEN, KA, KP, SCH];
Lithopone White [SE];
Marbon White;
Mixing White [SCH];
Navin's White;
Oleum white;
Opaque White [LK];
Orr's White;
Pigment White 5;
Ponolith;
Ross' white;
Snow White;
Structure White;
Sulphogen White;
Transparent White [LA];
White;
White smalt;
Zinc Baryta White;
Zinc Mixing White [DR];
Zinc White [DR, HO, WN]

 77115 Inorganic; "an insoluble mixture of barium sulfate and zinc sulfide that precipitates upon mixing solutions of barium sulfide and zinc sulfate. The precipitate is recovered by filtration, then calcined" (Ref); barium sulfate (28 - 30%) and zinc sulfide (68 - 70%) with trace amounts of zinc oxide;
CAS 1345-05-7		 White 1 I 14 A Sometimes used as a base for Lake pigments; Often used as a extender in white paints. Used as a white pigment in student paints and some light colored convenience mixes.
PW6 Titanium White Aeroweiss DS [SCH];
Antique White [HO];
Chinese White [HO, MG];
Chalk White;
Heavy Body White [SCH];
Mixing White [WN];
Opaque White [LK, SCH];
Permanent White [HO, UT];
Permanent White EX [HO];
Permanent White SF [HO];
Pigment White 6;
Quick Drying White [HO];
Radiant White [GB];
Sinopia Titanium White Rutile [SI];
Super White [MA];
Titanium Buff [GU];
Titanium Dioxide [NP];
Titanium Opaque White [SCH];
Titanium White [GEN, AS, BL, CH, CL, CR, DR, DS, DV, GO, GU, HO, KA, LA, LB, LK, LQ, MA, MG, MR, MT, OH, PF, RGH, RT, SCH, SE, SQ, TA, UT, WL, WN];
Titanium White (opaque) [HO];
Titanium White (Opaque White) [WN];
Titanium White Rutile [KP];
Transparent Titanium White [RT];
Unbleached Titanium [SQ, TA];
Warm White [SQ, TA];
White [AS, DR, HO, LA, MA, SE];
White (Titanium) [DV];
 XSL Titanium White 		77891 Inorganic; Titanium Dioxide;
CAS 13463-67-7		 Very white 1 I 18-30 A -
PW6:1 Titanium White Buff

Buff Titanium [DR, DS, KP];
Buff Titanium, natural titanium dioxide [KP];
Buff Titanium Oxide;
Chinese White [GR];
Hitox Buff Titanium Oxide;
Natural Titanium;
Natural Titanium Dioxide;
Pigment White 6:1;
Titan Buff [GO];
Titanium Buff [SI];
Titanium White [GR];
Titanium White Buff;
Unbleached Titanium [WL];
Unbleached Titanium Pale [WL]

 77891 Inorganic; Natural Titanium, Titanium Dioxide and Ferric Oxide bound together with other metallic oxides;
CAS 13463-67-7		 Off White 1 I 33-35 A -
PW7 Zinc Sulphide White Chinese White;
Matting;
Opaque White [SCH];
Pigment White 7;
Sphalerite;
Wurtzite;
Zinc blende;
Zinc Buff [WL];
Zinc sulfide [KP];
Zinc Sulphide White;
Zinc White[RT, WL];		 77995 Inorganic; Zinc Sulphide White;
CAS 1314-98-3		 White to yellowish 1* I 11-13 A**

Phospherescent and electroluminescent properties, often used to make fluorescent and glow-in-the-dark paints;
*Transparency increases the smaller the particles
**may have traces of lead
PW10 Barium Carbonate Barium Carbonate;
Barium Monocarbonate;
Barium Salt;
Carbonic Acid;
Durex White
Pigment White 10;
Witherite		 77099 Barium Carbonate;
CAS 513-77-9 		White powder 3 - 15-25 D* *used as rat poison, forms barium chloride in the presence of stomach acid
PW11 Antimony White

Algarotti White;
Antimonious Oxide;
Antimony(III) Oxide;
Antimony Bloom;
Antimony Peroxide;
Antimony Sesquioxide;
Antimony Trioxide;
Antimony White;
Flowers of Antimony;
Pigment White 11;
Timonox;
Valentinite (natural mineral);
White Star Timonox;

77052 Antimony Trioxide;
CAS 1309-64-4		 white powder 1 I 8-12 B May be darkened by hydrogen sulfide
PW13 Barium Tungstate Barium Tungstate;
Barium White;
Barium wolframate;
Pigment White 13;
Tungstate of Baryta;
Tungstate White;
Tungsten white;
Wolfram white		 77128 Barium Tungstate;
CAS 7787-42-0		 White - I - C -
PW14 Bismuth Oxychloride Bismuth White;
Bi-Flair;
Biluna Bismuth Oxy;
Blanc de Perle;
Chloride Crystals;
Liquid Mirror [TA];
Magistery of Bismuth;
Pigment White 14		 77163 Bismuth Chloride Oxide; Bismuth Oxychloride;
CAS 7787-59-9		 Silvery white with pearlescent or iridescence properties - - L A* Often used in cosmetics to produce pearlescent shine; Often used to add metallic or pearlescent properties to paints.;
*Can cause allergies and other claimed skin problems when used as cosmetic
PW16 Lead Silicate Alamosite;
Basic Lead Silicate;
Basic Silicate White Lead;
Lead Bisilicate;
Lead Frits;
Lead Metasilicate;
Lead Monosilicate;
Lead-m-silicate;
Lead Silicate;
Lead White
Pigment White 16		 77625 Alamosite is the natural mineral (Ref); Fused Silica sand and Litharge (Ref);
CAS 10099-76-0		 White 1 - L C -
PW17 Bismuth Subnitrate Bismuth Nitrate;
Bismuth Subnitrate;
Bismuth Subnitricum;
Bismuth White [KP];
Bismuthyl Nitrate;
Bismuth Oxynitrate;
Blanc de fard;
Bougival White;
Magistery of Bismuth;
Novismuth;
Paint White;
Pearl White;
Pearl White Bismuth Nitrate Oxide [KP];
Pigment White 17;
Spanish White;
Subnitrate of Bismuth		 77169

Basic Bismuth Nitrate; Bismuth hydroxide nitrate oxide;
CAS 10361- 44-1
CAS 54392-33-5

 Pearlescent white; Microcrystaline powder 1 II L A* May turn yellowish-gray on exposure to light;
Was formely used as an antiacid and wound dressing (Ref).
*Can cause allergies and other claimed skin problems when used as cosmetic
PW18 Chalk Aragonite [KP];
Alba Albula [KP];
Alabaster White;
Aragonite;
Bianco Carrara White Marble Dust [NP];
Bianco Verona White Marble Dust [NP];
Bologna Chalk [NP];
Calcite [NP];
Calcite White [KP];
Calcium Carbonate;
Carrara marmor dust [KP];
Carrara Marble, White [KP];
Chalk [GEN, NP];
Chalk from Bologna [KP];
Chalk from Champagne [KP];
Chalk from Ruegen [KP];
Coarse calcium carbonate chalk [KA];
Colourless [RT];
Extra-fine calcium carbonate chalk [KA];
Gilders Gesso;
Gilders Whiting;
Grey Chalk from Sarti [SI];
Limestone;
Marble;
Marble Dust [GEN, KP, SI, UT];
Marble Dust Italian [KP];
Paris White;
PCD French Chalk [SI];
Pigment White 18;
Powdered Marble [SCH];
Sarti Chalk Greyish [KP];
Stone Chalk [KP];
Tailor's chalk;
Veroneser White [KP];
Veronese White Marble[KP];
White Chalk [KP];
Whiting [GEN, GB, SI];
Yellow Chalk from Sarti [SI] 		77220 +
77713		 Inorganic; Natural Calcium carbonate with Magnesium carbonate as an impurity;
CAS 471-34-1		 White to cream/blue/gray off white 1-4* I 15-20 A Affected by acids; Generally used as extender, thickener, matting agent and to add tooth; Added to watercolors to make Gouache; Neutralizes acids; Used in gesso; Promotes thru drying and other claimed benefits to an oil paint film**.; Added to lead white to make the soft tranlucent mixing white Ceruse (Ref);
*Opaque in water media, but nearly transparent in oil Binder.
** see Calsite Sun Oil and Chalk Putty . More info on Calsite mediums from NP.
PW18 Precipitated Chalk Calcium Carbonate [KP];
Calcium Carbonate (precipitated chalk) [GU];
Calcium carbonate (USP);
Calcium monocarbonate;
Calcium trioxidocarbonate;
Pigment White 18;
Levigated chalk;
Precipitated Chalk

Also all the names above for natural chalk		 77220 Pure Calcium Carbonate;
CAS 471-34-1		 White 1-4* I 55 A See above
PW18:1 Dolomite Ankerite;
Aragonite;
Calcite;
Dolomite [KP];
Egyptian Dolomite;
Huntite;
Magnacite;
Pearl Spar;
Pigment White 18:1;
Spanish White [KP];
Sugar Dolomite [KP];		 77220:1 +
77713:1		 Inorganic; Natural Calcium carbonate with Magnesium carbonate; Mineral (Ref); (Ref); (Ref); As pigment (Ref);
CAS 7000-29-5;
CAS 546-93-0		 White to pale pink to yellowish white 1-4* I 12 –14 A * Nearly transparent extender in oils
PW19 Kaolin

Aluminum Silicate Hydroxide;
Aluminum Silicate Hydrated;
Bentone;
Bentonite [KP];
Brick Dust;
Caolin;
China Clay [KP];
China clay, kaolin [KA];
Electros;
English Caolin;
Devonshire Clay;
Kaolin [GU];
Kaolinite;
Natural White Earth [KP];
Neokaolin;
Organoclay*** [NP];
Paper Clay;
Pipe Clay;
Pigment White 19;
Porcelain clay;
Supreme White;
Vicenza Earth [NP];
White Bole;
White Bolus;
White Kaolinite [NP];
White Heart

 77004
77005		 Inorganic;
White Clay Rock, mostly natural hydrated Aluminium Silicate with Impurities of Magnesium, Iron carbonates, Ferric hydroxide, Mica, Quartz-sand, etc.
*** Organoclay is a derivative of a bentonite.
CAS 8047-76-5		 Bright White, orange to green undertones 1-4* I 26-55** A Calcined Kaolin produces whiter shades
* Opacity depends on manufacture, binder and other mineral properties
** Oil absorption varies some by manufacture method & particle size. Purity and other natural mineral properties may have some effects.

see inert pigments
PW20 Mica

Biotite;
Fine Mica [GU];
Gold Coarse Mica [GU];
Lepidolite;
Metallic White [HO];
Mica [GEN];
Mica Powder [SI];
Mica Titanate;
Mica White [KP];
Mother Of Pearl [TA];
Muscovite Mica [KP];
Muscovite Mica, brilliant[KP];
Natural Mica, Perlescent Powder [KA];
Pearl White [HO];
Phlogopite;
Pink Mica [GU];
Pigment White 20;
Russet;
Titanated Mica;
White Coarse Mica [GU];
White Fine Mica [GU];
White Medium Mica [GU];
Zinnwaldite;

Also many colors with Iridescent, Pearl, or Metallic prefix or suffix.

 77019 Inorganic; Aluminium potassium silicate; Mica Titanate (micronised mica flakes);
CAS 12001-26-2		 Translucent off-white 4 I 45-50 A Adds metallic, iridescent and pearlescent properties to paints. Natural Mica and larger particles may harm oil paint film, very fine particles and micronised Mica Titanate is more suitable for oil (Ref).
PW21 Barium Sulfate Barite [NP];
Barium Sulfate [KA];
Barium White;
Blanc Fixe [KP, SCH];
 Italian Gesso [NP];
Permalba;
Pigment White 21;
Pigment White 22
Precipitated Barium Sulphate;
Sulfate de Baryum;
Sulfato de Bario;
Synthetic Barium Sulfate		 77120 Inorganic; Synthetic Barium Sulfate (Ref), (Ref), Natural Barium Sulfate Ore (Ref);
CAS 7727-43-7		 White 2-3* I 15-25 A** *Used as an extender, to improve handling, increase opacity, and/or adulterant in oil colors. Also used as a base for more opaque lake pigments;
** Pure Barium Sulfate is not soluble so it is safe, but poorly made synthetic Barium Sulfate may have free soluble barium compounds as impurities that are very poisonous (Ref). I Recommend only getting from a reliable source.

see inert pigments
PW22 Barytes Barite [NP];
Baryta White;
Baryte;
Barytes;
Basofor;
Bologna Stone;
Bolognian Spar;
Bologna white;
Calk;
Cauk;
Cawk;
Heavy Spar;
Natural Barium Sulfate;
Pigment White 22;
Sulfate de Baryum;
Sulfato de Bario;
Tyrol white		 77120 Inorganic; Natural Barium Sulfate (Ref);
CAS 7727-43-7		 White to off white 2-3* I 11 A** Used as an extender, to improve handling, increase opacity, and/or adulterant in oil colors. Also used as a base for more opaque lake pigments;
** Barium Sulfate is not soluble so it is safe, but poorly made Barium Sulfate may have free soluble barium compounds that are very poisonous (Ref)
PW23 Gloss White Alumina Blanc Fixe;
Pigment White 23		 77122 Aluminum hydroxide, Barium sulfate White Crystalline Powder - I - A** ** Barium Sulfate is not soluble so it is safe, but poorly made Barium Sulfate may have free soluble barium compounds that are very poisonous (Ref)
PW24 Aluminum Hydrate Alumina ;
Aluminum Hydrate;
Aluminum Hydroxide;
Aluminum Hydroxide Fine [KP];
Aluminum Hydroxide Medium [KP];
Aluminum Trihydrate [NP];
Hydrated alumina;
Hydrated Aluminum Oxide;
Aluminum oxide trihydrate;
Transparent Blender [DS];
Trihydroxyaluminum;
Alumina White;
Pigment White 24		 77002 Aluminum hydroxide
CAS 21645-51-2		 Translucent White powder* 3-4** I 33-55*** A *see inert pigments
 **Transparent in oils
*** Oil absorption depends on particle size
PW24 Gibbsite Gibbsite;
Hydrargillite;
Natural Aluminum Hydroxide;
Pigment White 24		 - Natural Aluminum Hydroxide
CAS 21645-51-2		 Brown tinted Translucent Flakes 4 I 33 A Can be used the same as Aluminum Hydroxide after washing
PW25 Gypsum Anhydrous sulfate of lime;
Alabastar [NP];
Alabaster Gypsum;
Alabaster White [KP];
Atlas Spar;
Bologna White;
Gypsum;
Lady's Ice;
Mineral White;
Magnesia White;
Natural Gypsum;
Pigment White 25;
Plaster of Paris;
Satin spar;
Silk Spar;
Selenite;
Specular Stone;
Terra Alba [KP];		 77231 Inorganic; Hydrated calcium sulfate (Ref);
CAS 91315-45-6
CAS 10101-41-4		 White 1-3* I 18-22 A *Nearly transparent in oils used as an extender, filler and/or adulterant.; Said to make brittle gesso (Ref)
PW26 Talc Pigment White 26;
Tak;
Talc [GU, KA];
Talcum [SCH];
Talcum Powder [SI];
Talcum White [KP];		 77718 +
77019		 Inorganic; Mixed Hydrated Silicate of Magnesium with Calcium Iron and other compounds;
CAS 8005-37-6		 Slightly off white to light grey 1-3* I 30 - 45 A *Nearly transparent in oils used as an extender, filler and/or adulterant
PW27 Silica Cristobalite Powder [KP];
Diatomaceous Earth [GU];
Diatomaceous Silica;
Diatomic Earth;
Diatomite;
Fossil Flower;
Fuller's Earth;
Infusorial Earth;
Microdol;
Mountain Crystal [KP];
Pigment White 27;
Precipitated amorphous silica;
Rock Crystal [KP];
Silica;
Sand;
Quartz;
Quartz Powder [KP];
Tripolite;		 77811 Inorganic; Silica; Natural Diatomaceous Earth is made up of the fossilized skeletal remains of aquatic plants called diatoms (Ref); Silicon dioxide (amorphous) pure chemical form;
CAS 7631-86-9		 White to off white 1-4* I L A Used mostly to add tooth or texture; *Transparency depends on binder and partical size, also the crystaline structure.
PW28 Calcium Silicate Anhydrite;
Calcium Silicate;
Baysical K;
Pigment White 28;
Wollastonite (mineral)		 77230 Inorganic; Calcium Silicate;
CAS 10101-39-0;
CAS 10101-41-4;
CAS 13397-24-5;
CAS 26499-65-0;
CAS 7778-18-9		 White to light cream 2-3* I M A *Depends on binder and partical size
PW28 Hydrated Calcium Silicate Hydrated Calcium Silicate;
Pigment White 28;		 77230 Inorganic; Hydrated Calcium Silicate Bright White 4 I H A -
PW 30 Lead Phosphate Lead Phosphate;
Pigment White 30		 77622 Lead Phosphate - - - - C -
PW32 Zinc Phosphate Delta Zinc Phosphate;
Pigment White 32;
Zinkphosphate ZP 10		 77964 Inorganic; Pure Zinc Phosphate;
CAS 7779-90-0		 White 1 I - A -


White Pigments Without C.I. Names | CI Natural White | CI Pigment White |KEY | Top ^
PAINT AND PIGMENT REFERANCE TABLE KEY:

Opacity:  1 = Opaque,   2 = Semi-Opaque,   3 = Semi-Transparent,   4 = Transparent

Light Fastness Rating:   I = Excellent,   II = Good,   III = Poor,   IV = Fugitive/Very Poor

Oil Absorption: (ml/100mg)
When the specific numbers are unavailable:   H = High,   M = Medium,   L = Low

Toxicity:  A = Low hazard;   B = Possible Hazard;  C = Hazardous;   D = Extremely Toxic;

(hue) = Refers to a hue color not designated on the label, when the word Hue is not in parenthesis is part of the pigment name as per ASTM guidelines.

? = a question mark next to a name, note, or data code indicates that it may or may not be correct information due to conflicting information, questionable reference, possible typo or other discrepancies in the manufacturer or other reference documentation. Further study is needed to clarify.

†Possible effects of long term light exposure are given when known, this may allow an artist to anticipate color changes and possibly use them as an advantage. These effects are all relative to the pigments inherent light fastness and may take decades or even centuries in normal conditions to be visible.
Fades = Becomes more Transparent; Lightens = Loses chroma but maintains relative transparency or opaque character; Whitens = Becomes lighter and more opaque; Darkens = Becomes darker but retains hue; Dulls = Loses chroma towards nuetral; Blackens = Turns very dark or black losing chroma; Hue shift = Changes hue towards a different color
Paint/Pigment Manufacturer Code:
d next to the manufacturer code indicates a pigment that is known to have been discontinued
AS = Art Spectrum
BR = Blueridge
BL = Blockx
CH = Charvin
CL = Classic, Triangle Coatings
CR = Chroma
DS = Daniel Smith
DR = Daler-Rowney
DV = Da Vinci		 DB = Dick-Blick
DG = Daniel Green
GB = Gamblin
GO = Golden
GR = Grumbacher
GU = Guerra Paint & Pigment
HO = Holbien
KA = Kama Pigments
KP = Kremer Pigmente  (USA site)		 LB = Lefranc & Bourgeois
LA = Lascaux
LQ = Liquitex
LK = Lukas
MA = Maimeri
MT = Matisse
MG = M. Graham
MH = Michael Harding
MR = MIR , Jaurena Art
 MW = Martin/F. Weber Co.
NP = Natural Pigments
OH = Old Holland
PF = Pebeo Fragonard
RF = R&F Handmade Paint
RGH = RGH Artists' Oil Paints
RT = Royal Talens
SH = Shinhan
SV = Shiva
 SE = Sennelier
SI = Sinopia
SCH = Schmincke
SQ = Steven Quiller
TA = Tri-Art
UT = Utrecht
WL = Williamsburg
WN = Windsor & Newton
GEN = Often used Generic term

©2009 by David Myers, All Rights Reserved. Please email me with corrections, additions or comments.

Resources:

Natural Pigments, Pigments, Education, The Best source of Natural and Historical Pigments
Dick Blick: Full Range of art supplies at discount prices
Handprint.com, Guide to Watercolor Pigments, Bruce MacEvoy 2008