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Hammond Group Ceraflux

Hammond Group Ceraflux, also known as lead alumina bisilicate, is specially formulated for use in pottery and wall-tile glazes. It is also used is low-loss dielectrics and reflective highway signs. Lead bisilicate is extremely resistant to leaching by dilute acids, including gastric juices, which reduces its toxicity and offers the maximum safety of any of the lead products.

Chemical Family: Aluminum Compounds, Silicates

Functions: Filler

Physical Form: Granules, Solid

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

Chemical Name
Industrial Additives Functions
CAS No.
14808-60-7
EC No.
238-878-4

Applications & Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Coefficient of Expansion7.1 x 10⁻⁶
Density4.60 - 4.65g/cm3
Melting Point788 - 816°C
Refractive Index1.72 - 1.74
Typical Properties
ValueUnitsTest Method / Conditions
Arsenic Pentoxide, Antimony Trioxide, Tin (IV) Oxidemax. 0.0005%
Bismuth Trioxide0.008%
Boron0.0275%
Cadmium0.015%
Cobalt, Managanese, Seleniummax. 0.0001%
Copper (I) Oxide0.0003%
Iron (III) Oxide0.025%
Nickel, Telerium, Thoriummax. 0004%
Silver0.0015%
Zinc Oxide0.003%
Chemical Composition
ValueUnitsTest Method / Conditions
Aluminum Oxide1.488 - 1.512%
Lead Monoxide64.48 - 65.52%
Silicon Dioxide33.728 - 34.272%

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Screen Analysis
Typical Screen Analysis (U.S. Standard Sieve) Granular (%) Ground (%)
greater than 3 mesh 0 0
between 3 - 10 mesh 1.3 0
between 10 - 20 mesh 81.3 0
between 20 - 40 mesh 10 0
between 40 - 80 mesh 134.8 0
  2.6 1
between 100 - 200 mesh 0 1.2
Between 200 - 325 mesh 0 7.8
Less than 325 mesh 0 90

Packaging & Availability

Packaging Type
Packaging

50 lb / 22.68 kg Paper bags

Special packaging may be available upon request.
 

Availability

It is available in either granulated or ground form.