Product Description of Carbon Black (CAS#1333-86-4)
Carbon black consists of highly-finely dispersed carbon particles. When suspended in air close to an ignition source, it can trigger explosive combustion. Moreover, it is capable of self-heating and spontaneous ignition when exposed to water. Inhalation poses health hazards; its occupational threshold limit value (TLV) is set at 3.5 mg/m³ for airborne concentration.
Main Application Fields
Rubber Sector It functions as a reinforcing filler for tyres, belt covers, hoses, industrial rubber goods and conveyor belts. It improves key performance of vulcanized rubber, including tensile strength, wear resistance, elongation and tear strength. This grade fits large size tyres built on natural rubber, off-road tyres as well as tyre sidewall components.
Coatings, Inks & Plastics It serves as a colorant pigment in paints, printing inks, plastics, shoe polish, leather finishing agents, pigmented cement and coated fabrics. It is also adopted to deliver deep black tones for black paper, carbon paper and typewriter ribbons.
Food-related Uses It works as an edible black colorant for baked pastries at dosage of 0.001%-0.1%. Within China’s regulatory scope, it can colour rice, flour based goods, candies, biscuits and pastries, with a maximum permitted addition of 5.0 g/kg.
Electronics and Battery Industry It acts as conductive additive for lithium-ion batteries, electrode materials and antistatic rubber articles.
Other Usages Additional scenarios cover metallurgical processing, rocket propellant formulations, phonograph record production, as well as serving as an absorption material for solar energy.
| 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 |
Performance
Carbon Black imparts excellent mechanical properties to rubber and other materials, providing durability, reinforcement, and enhanced performance in industrial and consumer applications.
Safety and Handling
Proper precautions are required due to its toxicity and potential combustibility. Handle in well-ventilated areas, avoid inhalation, and store away from ignition sources.
