Category: Glaze > Yellow
Created 1997-06-23 09:00:00 by Glazy Admin
Categories: Glaze > Yellow
Firing Temperature: Δ6
Atmospheres: Oxidation
Surface Type: Glossy

(An orangey tinted clear glaze - I like it for stone ginger bottles
and other old-timey things) Here are a couple of standards from the
Richmond Potters Club, and a few of my own formulation that have
worked well in ^6 oxidation. They aren't revolutionary (my exciting
ones have things like barium in them, or are less predictable for a
classroom situation) but they have been reliable, and allow for some
play. They all calculate out to well within the INSIGHT limit
formulas for maturity at ^6. If anyone tests these and comes up with
problems, new ideas, good variations etc. could they let me know?
I'll look forward to a larger list being posted to clayart. Veronica
Shelford

Material Amount Batch Subtotal
Custer Feldspar 29.47
Nepheline Syenite (Theoretical) 20
Silica 20
Gerstley Borate 17.89
Zinc Oxide 5.26
Whiting 4.21
Lithium Carbonate 3.16
Total Base:99.99
Zircopax 4.21
Manganese Dioxide 3.16
Red iron oxide 2.11
Total: 109.47

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO ZnO Li2O K2O Na2O KNaO P2O5 Fe2O3 TiO2 MnO2 ZrO2 LOI
Custer Feldspar29.4720.195.010.092.950.883.830.030.09
Nepheline Syenite (Theoretical)2012.144.660.020.140.921.962.880.020.14
Silica2020
Gerstley Borate17.892.650.184.790.633.470.070.720.790.020.070.025.28
Zinc Oxide5.265.26
Whiting4.212.361.85
Lithium Carbonate3.161.291.87
Zircopax4.211.382.83
Manganese Dioxide3.162.750.41
Red iron oxide2.1120.11
Total109.4756.359.854.790.656.065.261.293.943.567.50.022.130.022.752.839.75
100% no LOI 56.649.94.820.656.095.291.293.963.587.540.022.140.022.762.84

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.17 Na2O
0.13 K2O
0.13 Li2O
0.2 ZnO
0.33 CaO
0.05 MgO
STABILIZERS

R2O3

0.29 Al2O3
0.21 B2O3
GLASS-FORMERS

RO2

2.84 SiO2
0.07 ZrO2
OTHER

 

0.04 Fe2O3
0.1 MnO2
SILICA:ALUMINA

SiO2:Al2O3

9.70

FLUX RATIO

R2O:RO

0.43 : 0.57

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Yellow.

Click and drag to zoom
Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 9.7

Similar Base Recipes

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Similar RO/R2O Unity Formulas

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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
Custer Feldspar HarmfulHealth Hazard WARNING May cause damage to lungs through prolonged or repeated inhalation.
Suspected of causing cancer through
prolonged or repeated inhalation.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
May cause skin or 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
Gerstley Borate
Zinc Oxide 0 0 0 *
Whiting Harmful WARNING Causes eye irritation
Lithium Carbonate Harmful WARNING Harmful if swallowed.
Causes serious eye irritation.
Harmful to aquatic life.
Zircopax
Manganese Dioxide Harmful WARNING Harmful if swallowed. Causes serious eye irritation. Harmful if inhaled. May cause respiratory
irritation.
Red iron oxide Health Hazard WARNING May cause damage to lung through prolonged or repeated exposure by inhalation