Category: Glaze > Blue
Created 2017-08-04 11:19:28 by Triin Lehismets
Categories: Glaze > Blue
Firing Temperature: Δ10
Atmospheres: Oxidation, Reduction, Wood
Surface Type: Matte
Transparency: Opaque

Fired to cone 10 in a small wood fired kiln (ca. 700L/25 cu ft). Firing lasts about 10h. Beautiful matte sugary surface. Greenish where thin, glossy blue where thick. Runs if applied thick.

Material Amount Batch Subtotal
Norfloat Sodium Feldspar 57.6
Whiting 19.3
Zettlitzer kaolin 17
Silica 6.2
Total Base:100.1
Rutile 3.81
Cobalt Oxide 0.75
Total: 104.66

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO Na2O KNaO Fe2O3 TiO2 CoO LOI
Norfloat Sodium Feldspar57.639.1511.870.881.054.584.580.05
Whiting19.310.838.47
Zettlitzer kaolin177.876.690.020.132.21
Silica6.26.2
Rutile3.810.383.43
Cobalt Oxide0.750.70.05
Total104.6653.2218.560.8811.914.584.580.563.430.710.74
100% no LOI 56.7119.780.9412.694.894.890.593.650.75

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.24 Na2O
0.69 CaO
0.07 MgO
STABILIZERS

R2O3

0.59 Al2O3
GLASS-FORMERS

RO2

2.88 SiO2
0.14 TiO2
OTHER

 

0.01 Fe2O3
0.03 CoO
SILICA:ALUMINA

SiO2:Al2O3

4.86

FLUX RATIO

R2O:RO

0.24 : 0.76

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Blue.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 4.86

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Hazards

09/2016 Note: This is a new feature. If a recipe material is not listed, 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
Material Pictograms Signal Word Hazard Statements Health Flammability Hazard Protection
Whiting Harmful WARNING Causes eye irritation
Silica HarmfulHealth Hazard DANGER From 200-Mesh SDS:
May cause cancer by inhalation.
Causes damage to lungs through prolonged or repeated exposure by inhalation.
* 0 0 E
Rutile 1 0 0
Cobalt Oxide 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 *