Category: Glaze > Blue
Created 2017-10-28 17:22:20 by Jean-Pierre Prieto
Categories: Glaze > Blue
Firing Temperature: Δ9-10
Atmospheres: Oxidation
Surface Type: Glossy
Transparency: Opaque

Motley iron blue with mixed colors of dark blue, light blue, yellowish, and brown when thin. Not very running, must be applied thick.
Based on formulas in "Pratique des Emaux 1300°" by Daniel de Montmollin (pp 239, based on diagram 25).

Material Amount Batch Subtotal
Potash Feldspar (Theoretical) 45.92
Silica 28.15
Whiting 15.73
Iron oxide 6.33
Bone Ash 2.84
Kaolin (Theoretical) 1.03
Total: 100

Percentage Analysis

Ingredient Amount SiO2 Al2O3 CaO K2O KNaO P2O5 Fe2O3 LOI
Potash Feldspar (Theoretical)45.9229.748.417.777.77
Silica28.1528.15
Whiting15.738.826.91
Iron oxide6.336.010.32
Bone Ash2.841.591.20.05
Kaolin (Theoretical)1.030.490.410.13
Total10058.378.8310.417.777.771.26.017.4
100% no LOI 63.049.5311.248.398.391.36.49

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.31 K2O
0.69 CaO
STABILIZERS

R2O3

0.32 Al2O3
GLASS-FORMERS

RO2

3.62 SiO2
OTHER

 

0.14 Fe2O3
0.03 P2O5
SILICA:ALUMINA

SiO2:Al2O3

11.22

FLUX RATIO

R2O:RO

0.31 : 0.69

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Blue.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 11.22

Similar Base Recipes

No recipes with similar base ingredients and amounts were found.

Similar RO/R2O Unity Formulas

R2O3 - STABILIZERS RO2 - GLASS FORMERS RO/R2O - FLUXES
Recipe Name ΔTemp Al2O3 B2O3 SiO2 ZrO2 SnO2 TiO2 KNaO K2O Na2O CaO MgO ZnO BaO PbO Li2O SrO
DDM222 Iron BLue 9-10 0.32 3.62 0.31 0.31 0.69
Tichane Blue Celadon 532.1 9-12 0.31 3.58 0.31 0.31 0.69

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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
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
Whiting Harmful WARNING Causes eye irritation
Iron oxide Health Hazard WARNING SDS for Red Iron Oxide: May cause damage to lung through prolonged or repeated exposure by inhalation
Bone Ash
Kaolin (Theoretical) HarmfulHealth Hazard DANGER SDS for EPK KAOLIN: EPK Kaolin is a naturally occurring mineral, which may contain amounts of crystalline silica
typically 0.1-1.0%, may cause damage to respiratory system through prolonged or repeated
exposure.