Important: Clay Pricing and Supply Chain
Continental Clay Bodies
Raw Materials
Clay & Glaze Chemicals
    A - C
    D - G
    H - L
    M - P
    R - S
    T - Z
    Chemicals for Clay & Glaze (All) Glaze - Continental Clay TEMP UNAVAILABLE
Glaze - Mayco
Glaze - Amaco
Glaze - Duncan Discontinued 40% Off
Glaze - Spectrum
Glaze - All Brands
Underglaze - Continental Clay TEMP UNAVAILABLE
Underglaze - Amaco
Underglaze - Duncan Discontinued 40% Off
Underglaze - Mayco
Underglaze - Spectrum
Mason® & Spectrum Stains
Pottery Wheels
Shelves & Firing Accessories
Small Studio Equipment & Tools
Large Studio Equipment
Molds & Moldmaking
Classroom Furniture
School, Studio Specials & Discounts
Modeling Sculpting Taxidermy
Display Accessories - Acrylic Stands
Decorative & Faux Finishes
Additives / Resists / Repair
Magazines, Posters, Videos
Tile Firing Supplies
** Gift Cards **

Clay & Glaze Chemicals / Chemicals for Clay & Glaze (All) / Bone Ash - crude

Bone Ash - crude

Glaze opacifier

Bone Ash-crude, is a common name given to dibasic dicalcium phosphate dihydrate (CaHPO-H2O ). This material is derived from a ground ash.

  • The average chemical composition is 25%-Calcium with a phosphorus content of 18.5% at minimum.
  • Florine is an inherent impurity in natural bone ash, but it is contained to a maximum concentration of .05%. This product is grainy in nature with a mean particle size of 100 mesh & finer. Up to 22% can be  of 80 mesh particles.
  • Synthetic bone ashes are processed to a much finer particle size. However synthetically derived bone ashes used in the industry have a primary chemical composition of tricalcium phosphate which often render higher melting temperatures and do not always work in low temperature glaze applications. 

printable Bone Ash MSDS pdf

Due to fluctuating prices in the raw materials market, any price increases will be confirmed with you before your order is charged or shipped.


Color Product SKU Description Lbs Add
CHBONEChemical     Add
Clay & Glaze Chemicals / Chemicals for Clay & Glaze (All) / Bone Ash - crude