Created by Glazy Admin 2015-07-16 06:59:40, updated 2015-09-15 01:31:28

Parent: None

Type: Colorant

Weight: 74.9200
Formula Weight: 74.9326
LOI: 6.6500
Thermal Expansion: 0.0000
Oxide CoO
% Analysis 93.35
Formula 1.000

Cobalt oxide supplies CoO. A powerful colorant and flux. Tends to speck glazes and not
disperse as well as the carbonate. Insoluble in water. Manufactured by roasting cobalt ores.
Analyses:
Hopper:
Co2O3
Cooper & Royle:
CoO
Rhodes:
Co3O4
Chappell:
Co3O4
Cushing:
Co3O4
Parmelee:
Co3O4

Hazards

09/2016 Note: This is a new feature. If there is no safety information below, then that material's data has not yet been added. Some materials only have GHS ratings, while others only have HMIS ratings. Warnings differ between systems and countries. Glazy does not take any responsibility for accuracy of linked SDS information. Contact your ceramics supplier for safety information for your specific materials.
Globally Harmonized System (GHS) Hazardous Materials Identification System (HMIS) SDS Link
Pictograms Signal Word Hazard Statements Health Flammability Hazard Protection
HarmfulHealth Hazard WARNING Suspected of causing cancer
Harmful if swallowed
May cause allergy or breathing difficulties if inhaled
May cause an allergic skin reaction
2 0 0 *

Recipes using this material

Name Amount of Cobalt Oxide Temp. Atmospheres Surface Transparency Si:Al R20:RO Author
Etch Black 1.5 Δ9 - 10 Oxidation
Neutral
Reduction
Semi-glossy Opaque 6.25 0.4 : 0.6 Sid Henderson
Test Blue 3 Δ9 - 10 Reduction
Glossy Opaque 5.84 0.27 : 0.73 Hailey Smither
Davis Bronze 5 5 Δ5 - 9 Oxidation
7.35 0.44 : 0.56 Steve Davis
Sue's Black Velvet -new (Cedar Hill) 2 Δ6 Oxidation
Matte Opaque 4.84 0.3 : 0.7 Sue McLeod
Black Matte -old (Cedar Hill) 1.3 Δ6 Oxidation
Matte Opaque 5.14 0.22 : 0.78 Sue McLeod
Sue's Blue -new (Cedar Hill) 2 Δ6 Oxidation
Matte Opaque 5.38 0.19 : 0.81 Sue McLeod
Blue -old (Cedar Hill) 160 Δ6 Oxidation
Matte Opaque 7.32 0.14 : 0.86 Sue McLeod
Lapiz Blue 0.75 Δ9 - 10 Oxidation
Neutral
Reduction
Satin Semi-opaque 7.75 0.25 : 0.75 Sid Henderson
Charcoal Matte Black 1.3 Δ6 Oxidation
Satin-matte Opaque 4.79 0.26 : 0.74 Alisa Liskin Clausen
Chappell Floating Blue, Blue Hare (variation) 1 Δ5 - 6 Oxidation
Glossy 7.01 0.48 : 0.52 mitch henke
Glossy Yellow with Blue Crystals 1.06 Δ6 Oxidation
Semi-glossy 15.28 0.32 : 0.68 Ginger Lukas
Gus Blue 3 Δ5 - 6 Oxidation
Reduction
Glossy Semi-opaque 8.4 0.19 : 0.81 Clara Giorello
Fabius Blue 3 Δ4 - 5½ Oxidation
Reduction
Glossy Semi-opaque 9.06 0.2 : 0.8 Clara Giorello
Jim Bob Blue 0.5 Δ5 - 6 Oxidation
5.71 0.38 : 0.62 Stacey McDonald
Deep Sky Blue 0.5 Δ10 Oxidation
Neutral
Reduction
Glossy Translucent 7.23 0.26 : 0.74 Sid Henderson
Lalone Blue Ash (toms gb variation) 0.6 Δ5 - 6 Oxidation
Satin-matte Semi-opaque 6.82 0.28 : 0.72 Tom Demeranville
CFB27 - Dark blue-grey 0.3 Δ9 - 10 Oxidation
Dry Matte Opaque 3.86 0.31 : 0.69 Jean-Pierre Prieto
Reitz Chamelion 0.5 Δ10 - 11 Oxidation
Reduction
Smooth Matte Opaque 4.83 0.71 : 0.29 Sid Henderson
Meloy Black 2 Δ10 - 12 Oxidation
Reduction
Satin-matte Opaque 4.35 0.28 : 0.72 chance taylor
Ravenscrag Floating Blue 1 Δ6 Oxidation
Reduction
Glossy 7.64 0.24 : 0.76 Bob Payne
Field Flower 30 strontium, 1 co. ox., 3 rutile 1 Δ6 Oxidation
4.39 0.28 : 0.72 Alisa Liskin Clausen
Triin's Beach Blue 0.75 Δ10 Oxidation
Reduction
Wood
Matte Opaque 4.86 0.24 : 0.76 Triin Lehismets
V.C 71 Satin Matte (Variation) Lavender 0.75 Δ4 - 7 Oxidation
Satin-matte Opaque 8.74 0.22 : 0.78 Jayne Bunting
V.C 71 Satin Matte (Variation) Transparent Lilac Blue 0.5 Δ4 - 7 Oxidation
Satin-matte Translucent 8.62 0.22 : 0.78 Jayne Bunting
V.C 71 Satin Matte (Variation) Lavender Blue Satin 0.75 Δ4 - 7 Oxidation
Satin-matte Opaque 8.74 0.22 : 0.78 Jayne Bunting
V.C 71 Satin Matte (Variation) Khaki Grain 0.2 Δ4 - 7 Oxidation
Semi-glossy Opaque 8.62 0.22 : 0.78 Jayne Bunting
CC Blue Semi-Gloss Cone 6 2.5 Δ6 Oxidation
Glossy Opaque 8.93 0.22 : 0.78 Terry Rorison
Heino Blue (Variation) 0.8 Δ4 - 7 Oxidation
Matte Opaque 5.17 0.52 : 0.48 Jayne Bunting
V.C. Matte Cobalt Blue (variation) 0.5 Δ4 - 7 Oxidation
Matte Opaque 5.66 0.59 : 0.41 Jayne Bunting
V.C. Matte Copper Blue / Green(variation) 2 Δ4 - 7 Oxidation
Matte Opaque 5.64 0.59 : 0.41 Jayne Bunting
Roy Fat White (Blue variation) (Reid Deschands variation) 1 Δ6 Oxidation
Satin 9.11 0.21 : 0.79 Reid Deschand
Peacock Blue 0.75 Δ6 Semi-matte 8.39 0.18 : 0.82 Glazy Admin
Cornish slate 1 Δ5 - 7 Oxidation
Semi-matte Semi-opaque 6.76 0.1 : 0.9 Tom Demeranville
Devon slate 1 Δ5 - 7 Oxidation
Semi-matte Semi-opaque 6.41 0.07 : 0.93 Tom Demeranville
Westcountry slate 1 Δ5 - 7 Oxidation
Semi-matte Semi-opaque 6.58 0.09 : 0.91 Tom Demeranville
Pete Pinnell Clear Adjusted with Cobalt 0.5 Δ10 - 11 Oxidation
Reduction
Glossy Translucent 8.64 0.2 : 0.8 Derek Au
Pete Pinnell Clear Adjusted with Cobalt (sub MgO for CaO) 0.5 Δ10 - 11 Oxidation
Reduction
Satin Semi-opaque 8.62 0.2 : 0.8 Derek Au
Alligator Raku 2 Δ05½ - 04 Raku
Opaque 25.06 0.09 : 0.91 Glazy Admin
Kitten's Clear blue/green (Bunty's variation) 0.11 Δ6 Oxidation
Glossy Translucent 10.78 0.21 : 0.79 Jayne Bunting
Bunty's Variation of Kitten's Clear Blue Rutile 0.5 Δ5 - 6 Oxidation
Glossy Translucent 10.78 0.21 : 0.79 Jayne Bunting