
Premium Coconut Shell Activated Carbon
Black Opal manufactures coconut shell activated carbon for global water treatment, air and gas purification, gold recovery, oil and gas, and specialty purification systems.
Application-matched grades for every process
Granular Activated Carbon
Granular Activated Carbon for gold recovery, water treatment, solvent recovery, condensate polishing and H2S removal.
Grade detailsPowder Activated Carbon
Virgin powdered activated carbon suitable for drinking water, food-grade applications, wastewater treatment and odor removal.
Grade detailsAMMONYX, RESPIRAX - Impregnated Carbon
Impregnated activated carbon for cost-effective removal of certain impurities from gas streams and water systems.
Grade detailsCatCarb & CatalyX - CATCARB
Catalytic activated carbon for reduction of chloramines, hydrogen sulfides, hydrogen peroxides, THMs, TCE, PCE and taste and odor.
Grade detailsIndustries we serve
Water Treatment
Activated carbon for drinking water, industrial and process water treatment, municipal water and wastewater applications.
Application fitGold Recovery
Highly microporous coconut shell activated carbon with excellent attrition resistance for gold recovery applications.
Application fitAir & Gas
Activated carbon for indoor air quality, gas masks, filters, emissions and nuisance odor control.
Application fitOil & Gas
Activated carbon for petroleum vapor recovery, H2S removal, condensate polishing and refinery boiler-feed water treatment.
Application fitCatalytic Carbon
CATCARB catalytic activated carbon for chloramine and hydrogen sulphide decomposition in water treatment.
Application fitOther Applications
Activated carbon for solvent recovery, food and beverages, edible oil and other specialty applications.
Application fitHigh-performance activated carbon backed by quality, innovation, service, and reliability
Coconut Shell Specialization
Selected coconut shells support high hardness, low ash, micropore structure, and attrition resistance for premium activated carbon.
Consistent Quality
Quality control starts at raw material selection and continues through activation, sizing, packing, and final assurance.
Application-Specific Grades
Granular, powder, impregnated, and catalytic formats are matched to contaminant profile, contact time, and operating conditions.
Supply Reliability
Company-owned manufacturing, 100 million lbs annual coconut activated carbon capacity, US-based support, and final quality assurance before shipment support consistent supply.
Technical Support
Sales and technical teams review application conditions, target contaminants, mesh size, activity, and compliance requirements before recommending a grade.
Certifications & Compliance
NSF 42, NSF 61, and California Prop 65 compliant water-treatment grades are manufactured in ISO accredited facilities.
CATCARB for chloramine and H2S reduction
Surface-modified coconut shell catalytic carbon for water-treatment systems that need faster chloramine and hydrogen sulfide decomposition.
- Built for chloramine-heavy drinking-water programs
- Also suited for hydrogen sulfide decomposition
- Maintains the hardness and attrition resistance expected from premium coconut shell carbon

Controlled from coconut shell selection to final shipment
Black Opal works from selected coconut shell feedstock through controlled activation, sizing, and final quality checks so each grade is built for repeatable adsorption performance.
Grades can be customised by mesh size, adsorption level, pH adjustment, washing, and impregnation requirements instead of forcing every application into the same carbon.
Resources and brand updates
Technical notes and brand notices stay tied to the same products, facilities, and support channels customers already know.
Name Change Press Release
Black Opal announced the completion of its transition from Indocarb AC LLC to Black Opal Carbons as part of a broader global branding effort.
Brand updateCatalytic Carbon
Technical notes on catalytic activated carbon performance, chloramine reduction, and specialty water-treatment use cases.
Request resourceGold Grade Carbon
Grade context for CIP, CIL, CIC and tank-adsorbed precious-metal recovery systems where hardness and adsorption kinetics matter.
Request resourceGrade selection starts with the process
Mesh size, activity, washing, compliance, and delivery requirements shape the final recommendation.
