Category: Glaze > Green > Chrome
Created 2017-12-06 05:35:37 by Sid Henderson
Categories: Glaze > Green > Chrome
Firing Temperature: Δ9-10
Atmospheres: Oxidation, Neutral, Reduction

A slightly modified recipe from John Britt's Cone 10 glaze book (pg 102, Chromium Greens).

This glaze contains significant levels of Barium Carbonate and Lithium Carbonate and should not be used on any food surface.

Like many of the Barium glazes I like, this one exhibits a variety of colors and textures through breaking.

Material Amount Batch Subtotal
Custer Feldspar 55
Barium Carbonate 26
Silica 7
EPK 6
Lithium Carbonate 4
Whiting 2
Total Base:100
Copper Carbonate 3
Bentonite 2
Chrome Oxide 0.6
Total: 105.6

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO BaO Li2O K2O Na2O KNaO P2O5 Fe2O3 TiO2 Cr2O3 CuO LOI
Custer Feldspar5537.689.350.175.51.657.150.060.17
Barium Carbonate2620.195.81
Silica77
EPK62.742.240.010.010.020.020.020.050.020.89
Lithium Carbonate41.632.37
Whiting21.120.88
Copper Carbonate31.931.07
Bentonite21.190.40.040.020.020.060.080.070.2
Chrome Oxide0.60.6
Total105.648.6111.990.051.3220.191.635.541.717.260.020.170.020.61.9311.38
100% no LOI 51.8312.790.051.4121.531.745.911.837.740.020.180.020.642.06

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.09 Na2O
0.2 K2O
0.18 Li2O
0.44 BaO
0.08 CaO
STABILIZERS

R2O3

0.4 Al2O3
GLASS-FORMERS

RO2

2.73 SiO2
OTHER

 

0.01 Cr2O3
0.08 CuO
SILICA:ALUMINA

SiO2:Al2O3

6.88

FLUX RATIO

R2O:RO

0.48 : 0.52

SiO2:Al2O3 Chart

Closest 29 neighbors in Glaze > Green > Chrome.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 6.88

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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.
Barium Carbonate Harmful WARNING Harmful if swallowed. 2 0 1 *
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
EPK HarmfulHealth Hazard DANGER 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.
1 0 0 E
Lithium Carbonate Harmful WARNING Harmful if swallowed.
Causes serious eye irritation.
Harmful to aquatic life.
Whiting Harmful WARNING Causes eye irritation
Copper Carbonate Harmful WARNING Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
Bentonite Harmful WARNING Causes eye irritation
Causes skin irritation
May cause respiratory irritation
Chrome Oxide WARNING May be harmful if inhaled. May cause
irritation to eyes and respiratory tract. Slightly toxic if ingested.
2 0 1 E