Category: Glaze > Iron > Tenmoku, Temmoku
Created 2017-11-27 16:05:52 by Sid Henderson
Categories: Glaze > Iron > Tenmoku, Temmoku
Firing Temperature: Δ9-10
Atmospheres: Oxidation, Reduction
Surface Type: Glossy - Semi
Transparency: Opaque

From John Britt's High Fire Glazes, p. 70.

Material Amount Batch Subtotal
Custer Feldspar 53
Silica 24
Whiting 12
Kaolin (Theoretical) 6
Barium Carbonate 2.5
Zinc Oxide 2.5
Total Base:100
Red iron oxide 10
Total: 110

Percentage Analysis

Ingredient Amount SiO2 Al2O3 CaO BaO ZnO K2O Na2O KNaO Fe2O3 LOI
Custer Feldspar5336.319.010.165.31.596.890.050.16
Silica2424
Whiting126.735.27
Kaolin (Theoretical)62.842.410.75
Barium Carbonate2.51.940.56
Zinc Oxide2.52.5
Red iron oxide109.50.5
Total11063.1411.426.891.942.55.31.596.899.557.24
100% no LOI 61.711.166.731.92.445.181.556.739.33

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.1 Na2O
0.23 K2O
0.05 BaO
0.12 ZnO
0.49 CaO
STABILIZERS

R2O3

0.45 Al2O3
GLASS-FORMERS

RO2

4.24 SiO2
OTHER

 

0.24 Fe2O3
SILICA:ALUMINA

SiO2:Al2O3

9.36

FLUX RATIO

R2O:RO

0.33 : 0.67

SiO2:Al2O3 Chart

Closest 80 neighbors in Glaze > Iron > Tenmoku, Temmoku.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 9.36

Similar Base Recipes

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
Secrest Temmoku (Tenmoku) (variation) 9-10 0.45 4.24 0.33 0.23 0.1 0.49 0.12 0.05
St. John's Iron Green 10 0.46 4.21 0.33 0.23 0.1 0.49 0.12 0.05
Val Cushing Secrest Celadon 9-10 0.45 4.23 0.33 0.23 0.1 0.49 0.12 0.05
Temmoku Secrest 9-10 0.45 4.23 0.33 0.23 0.1 0.49 0.12 0.05
Secrest Temmoku (Tenmoku) 9-10 0.45 4.24 0.33 0.23 0.1 0.49 0.12 0.05

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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
Whiting Harmful WARNING Causes eye irritation
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.
Barium Carbonate Harmful WARNING Harmful if swallowed. 2 0 1 *
Zinc Oxide 0 0 0 *
Red iron oxide Health Hazard WARNING May cause damage to lung through prolonged or repeated exposure by inhalation