Products Description of Carbon Black CAS#1333-86-4
Carbon Black (CAS# 1333-86-4) is an industrial-grade, finely divided elemental carbon manufactured through controlled thermal decomposition or partial combustion of hydrocarbons. Characterized by its high specific surface area and particulate structure, it functions as a multifunctional agent for structural reinforcement, pigmentation, and electrical conductivity across diverse global industries.
Occupational Safety & Handling Notes: Due to its ultrafine particle distribution, airborne dust can form flammable or explosive mixtures in the presence of ignition sources, and slow thermal oxidation may occur upon moisture exposure. Inhalation exposure must be stringently managed, maintaining concentrations below standard occupational limits (TLV: 3.5mg/m3). Proper storage, dust control, and handling protocols are strictly recommended.
Carbon Black Chemical Properties
| Melting point | 3550 °C(lit.) |
| Boiling point | 500-600 °C(lit.) |
| density | ~1.7 g/mL at 25 °C(lit.) |
| vapor pressure | <0.1 mm Hg ( 20 °C) |
| Fp | >230 °F |
| solubility | H2O: soluble0.1mg/mL |
| form | rod |
| color | Clear colorless |
| Specific Gravity | bulk 0.10/g/cm3 |
| Water Solubility | Insoluble |
| Merck | 141808 |
| Exposure limits | ACGIH: TWA 3 mg/m3 |
| OSHA: TWA 3.5 mg/m3 | |
| NIOSH: IDLH 1750 mg/m3; TWA 3.5 mg/m3; TWA 0.1 mg/m3 | |
| Dielectric constant | 2.5（Ambient） |
| Stability: | Stable. Combustible. |
| InChIKey | VNWKTOKETHGBQD-UHFFFAOYSA-N |
| LogP | 1.090 (est) |
| IARC | 2B (Vol. Sup 7, 65, 93) 2010 |
| EPA Substance Registry System | Carbon black (1333-86-4) |
| Hazard Codes | |
| OEB | B |
| OEL | TWA: 3.5 mg/m3 |
| WGK Germany | 3 |
| RTECS | FF5250100 |
| TSCA | Yes |
| Hazardous Substances Data | 1333-86-4(Hazardous Substances Data) |
| Toxicity | LD50 oral in rat: > 15400mg/kg |
| IDLA | 1,750 mg/m3 |
Product Applications of Carbon Black CAS#1333-86-4
With its exceptional combination of reinforcing capability, opacity, and electrical properties, Carbon Black serves crucial functions across multiple sectors:
Elastomer & Rubber Reinforcement: Essential for the automotive and rubber industries. It drastically enhances the abrasion resistance, tensile strength, tear resistance, and mechanical durability of tire treads, sidewalls, solid tires, conveyor belts, hoses, and heavy-duty engineering components.
Pigments, Inks & Coatings: Serves as the primary black pigment in paints, industrial coatings, printing inks, carbon paper, leather finishes, shoe polishes, photographic packaging, and colored cement.
Conductive & Energy Storage Materials: Functions as an effective conductive additive in lithium-ion battery electrodes, anti-static rubber/plastic compounds, motor brushes, and specialized electronic components.
Food & Regulatory Uses: Approved under defined limits as a food-grade black coloring agent (vegetable carbon) for pastries, confectionery, flour-based items, and rice products.
Specialized High-Tech Uses: Applied in solar absorption coatings, metallurgical processing, plastics modification, and advanced propulsion technologies.
