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HPC (High pH Carbon) – Safety Data Sheet (SDS)

HPC (High pH Carbon) is a catalytic coconut-shell activated carbon (CAS 7440-44-0) used as an adsorbent for color removal and filtration.  Supplier: Carbon Chemistry Ltd., Watkins, CO.  Emergency: CHEMTREC CCN832309.

Link to Safety Data Sheet (PDF)

Quick Facts

  • Product Name/Synonyms: HPC (High pH Carbon); Catalytic Coconut Shell Base Activated Carbon

  • CAS Number: 7440-44-0

  • Recommended Use: Adsorbent, color removal, filter aid

  • Supplier: Carbon Chemistry Ltd. (+1-888-446-8421)

  • Emergency: CHEMTREC CCN832309 (+1-800-424-9300)

Hazards & Safety

  • GHS Classification: Combustible Dust

  • Signal Word/Pictograms: Warning / (none shown)

  • Hazard Statement: May form combustible dust concentrations in air.

First Aid Measures

  • Eyes: Rinse gently with water for ≥15 minutes; seek medical attention if irritation persists.

  • Skin: Wash thoroughly after handling; remove and launder contaminated clothing.

  • Inhalation: Move to fresh air; support breathing if needed; get medical attention if symptoms occur.

  • Ingestion: Do not induce vomiting; contact a physician/poison control; never give anything by mouth to an unconscious person.

  • Notes to Physician: Treat symptoms and reduce over-exposure.

Fire & Explosion Data

  • Extinguishing Media: Water, dry powder/dry sand, alcohol-resistant foam, dry chemical, CO₂.

  • Special Hazards: If airborne at high concentration (e.g., in confined spaces), dust explosion hazard; keep dust away from heat, sparks, flames. Sensitivity to mechanical impact/static discharge: not sensitive (per SDS).

  • Firefighting: Wear SCBA and full PPE; cool containers with water spray; prevent runoff to drains/waterways.

Handling & Storage

  • Avoid dust formation; ensure adequate air exchange and/or local exhaust.

  • Wash hands before breaks and after use; do not eat, drink, or smoke while handling.

  • Keep containers closed; minimize airborne dust during loading/unloading; activated carbon can reduce oxygen in closed containers—use caution.

Exposure & PPE

  • Exposure Limits: Not listed by ACGIH/OSHA in this SDS.

  • Engineering Controls: Local exhaust ventilation; provide eyewash/safety shower nearby.

  • PPE: Safety glasses; protective gloves and clothing as appropriate; respiratory protection if ventilation is insufficient and dust may be present.

Physical & Chemical Properties

  • Appearance/Odor: Black, odorless powder (solid)

  • pH: 7–10

  • Water Solubility: Not soluble

  • Specific Gravity (4 °C): ~3.5

  • Additional data: many properties not applicable/available for this solid (see SDS).

Stability & Reactivity

  • Stability: Stable under recommended storage conditions.

  • Incompatible Materials: Oxidizing agents.

  • Decomposition Products: Carbon oxides upon thermal decomposition.

Toxicology & Ecology

  • Likely Effects: Mechanical eye irritation from dust; not a skin sensitizer.

  • Carcinogenicity/Mutagenicity/Reprotox: Not listed/indicated by OSHA, NTP, IARC, or Cal/OSHA in this SDS.

  • Ecotoxicity/Persistence/Bioaccumulation/Mobility: No specific data provided.

Transport & Disposal

  • US DOT/IMDG/IATA: Not regulated for transport; not a DOT marine pollutant.

  • Disposal: Prefer recycling where possible; otherwise dispose as solid waste per federal/state/local regulations; avoid dispersal to soil/waterways.

Regulatory Status

  • TSCA: All components listed.

  • SARA 311/312: Fire—Yes (combustible dust); Acute—No; Chronic—No; Reactivity—No.

  • SARA 302/304/313/CERCLA/CWA: Not applicable/not listed.

  • California Proposition 65: Not listed.

  • Canada: Components on DSL; WHMIS 2015 controlled product. HMIS/NFPA (see page 5 graphic): HMIS—Health 0, Flammability 1, Physical Hazard 0; NFPA—Health 0, Fire 1, Instability 0.