Acetylene Black

Acetylene black is a carbon black produced by the thermal decomposition of acetylene, used as a conductive filler in battery materials and polymer compounds. Royalchem provides manufacturing and supply services through its partner-factory model. The specification below is a reference for a previously supplied 50% compressed grade. Confirm the required product form, test conditions and specification, then evaluate dispersion and electrical performance in the intended formulation.

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Product Description

Product Name	Acetylene Black; CAS 1333-86-4. The CAS number alone does not define a particular grade or product form.
Manufacturing & Supply	Royalchem is a manufacturer and supplier of specialty chemicals. Our manufacturing model includes production through partner factories under contract manufacturing arrangements.
Product Type	Carbon black made by acetylene decomposition, for conductive material formulation evaluation.
Reference Grade	50% compressed grade. The limits below describe a previously supplied reference grade, rather than every acetylene black product. Confirm the grade, methods and specification for the order. “50% compressed” describes the product form.
Appearance	Black; assess appearance using the applicable inspection method.
Apparent Specific Volume	13–17 cm³/g.
HCl Absorption	≥3.8 cm³/g.
Resistivity	≤3.5 Ω·m. Align pressure, specimen preparation and test conditions before comparing results.
Heating Loss	≤0.4%.
Ash	≤0.3%.
pH	6–8.
Coarse Particles	≤0.03%.
Applications	Battery materials and conductive or antistatic rubber and plastic compounds. Conductivity depends on the grade, dispersion, loading and processing conditions.
Packing & Storage	Specify product form and packaging requirements. Follow the supplied SDS and label for dust control, handling and storage.

Sourcing Acetylene Black?
Discuss your manufacturing and supply requirements with Royalchem. Please state your application, packaging and quantity, together with your target specification, destination, reference grade and required documents.

FAQ

Does “50% compressed” mean 50% purity?	No. It describes a compressed product form, not carbon content or purity. Identify the actual grade from supplier documentation.
How is carbon purity assessed?	Carbon content requires an appropriate analytical method. Ash content is a separate specification parameter.
Are HCl absorption and DBP absorption interchangeable?	No. The test media and methods differ. Compare results for the same parameter and method.
Can it directly replace an existing grade?	Compare specifications and test conditions, then validate it in the intended formulation, dispersion and processing conditions. Include the reference grade in your inquiry.