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Description

ACTIVATED CARBON · CAS 97793-37-8 · C72H26O7S. UNII 4XYU5U00C4. Boiling Point: 4200 °C; Boiling Point: 4200 °C @760 [mm Hg]; Melting Point: ≈3550 °C.

Identification

CAS Registry Number	97793-37-8
PubChem CID	172866199
Molecular formula	C72H26O7S
UNII (FDA)	4XYU5U00C4

Computed Descriptors

Molecular Weight	1035.0
XLogP3	14.9
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	1
Exact Mass	1034.13992434
Monoisotopic Mass	1034.13992434
Topological Polar Surface Area	132
Heavy Atom Count	80
Formal Charge	0

Physical & Chemical Properties

Boiling Point	4200 °C
Boiling Point	4200 °C @760 [mm Hg]
Melting Point	≈3550 °C
Density	1.8-2.1
Density	1.8-2.1 @25 °C
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)
Vapor Pressure	Negligible at 20 °C
Vapor Pressure	0 mmHg (approx)
Autoignition Temperature	>500 °C
Other Experimental Properties	Sublimates at 3652-97 °C

Physical description & handling notes

• Carbon black appears as odorless black pellets or extremely fine powder. Combustible solid that may contain flammable hydrocarbons. (NIOSH, 2024)
• Dry Powder; Other Solid; Liquid; Other Solid; Large Crystals; Liquid; Other Solid; Wet Solid; Other Solid; Dry Powder; Liquid; Liquid; Large Crystals; Wet Solid; Large Crystals; Liquid; Dry Powder; Large Crystals; Liquid; Wet Solid; Other Solid; CBI; Dry Powder; Wet Solid; Large Crystals; Wet Solid; Other Solid; Dry Powder
• Black, odorless solid; [NIOSH]
• ODOURLESS BLACK PELLETS OR EXTREMELY FINE POWDER.
• Black, odorless solid or a dark colored liquid with a petroleum-like odor.
• Black, odorless solid.

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Cosmetics FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS COLOUR: Food Additives NO ADI ALLOCATED TRS 759-JECFA 31/26 GAS BLACK
GHS notification summary	70.9% (2922 / 4121)

GHS Hazard Classification

GHS notification summary	70.9% (2922 / 4121)
Reported hazard statements	H351 (27.3%), H372, H251, H373

Documented Uses

• Used mainly in rubber (90%) and as a pigment (9%); [ACGIH] Carbon black is a manufactured material while soot is a waste product of combustion. Compared to soot, carbon black particles are more homogeneous and less biologically active. [AIHAJ 2001;62(2):218-28]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Lithography printing [Category: Hobbies]
• USED AS A PIGMENT FOR RUBBER TIRES, FOR PRINTING, STENCILING & DRAWING INKS; FOR LEATHER, STOVE POLISH, PHONOGRAPH RECORDS, FOR ELECTRICAL INSULATING APPARATUS.
• Finely divided carbon black is a plastics stabilizer from uv radiation.
• Tire treads, belt covers, and other abrasion-resistant rubber products; plastics as reinforcing agent, opacifier, electrical conductor, UV-light absorber; colorant for printing inks; carbon paper; typewriter ribbons; paint pigment; nucleating agent in weather modifications; expanders in battery plates; solar-energy absorber.

Synonyms

CARBONEUM; 4XYU5U00C4; UNIPURE BLACK LC 902; UNIPURE BLACK LC 902 GRAN; Black, Carbon; Supercarbovar; Velvetex; United; Vulcan; Texas; Ukarb; Witco; Ucet; Wyex; Vegetable carbon; Torch Brand

Frequently Asked Questions

What are the CAS number and molecular formula of ACTIVATED CARBON?

CAS 97793-37-8; molecular formula C72H26O7S; molecular weight — g/mol.

What other names is ACTIVATED CARBON known by?

CARBONEUM, 4XYU5U00C4, UNIPURE BLACK LC 902, UNIPURE BLACK LC 902 GRAN, Black, Carbon, Supercarbovar.

What is the regulatory status of ACTIVATED CARBON?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Cosmetics; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; COLOUR: Food Additives.

Is ACTIVATED CARBON classified as hazardous?

70.9% of GHS notifications report no hazard classification (2922 of 4121).

What are the key physical properties of ACTIVATED CARBON?

Boiling Point: 4200 °C; Boiling Point: 4200 °C @760 [mm Hg]; Melting Point: ≈3550 °C; Density: 1.8-2.1.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.