石墨

Description

Graphite · CAS 7782-42-5 · C. Boiling Point: >4000 °C; Boiling Point: 3825 °C @760 [mm Hg]; Melting Point: >3500 °C.

Identification

CAS Registry Number	7782-42-5
PubChem CID	5462310
Molecular formula	C
IUPAC name	methane

Computed Descriptors

Molecular Weight	12.011
XLogP3	0.6
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	12
Monoisotopic Mass	12
Topological Polar Surface Area	0
Heavy Atom Count	1
Formal Charge	0

Physical & Chemical Properties

Boiling Point	>4000 °C
Boiling Point	3825 °C @760 [mm Hg]
Melting Point	>3500 °C
Melting Point	4489 °C
Density	2.2 @25 °C
Density	1.5-1.8
Vapor Pressure	1 mm Hg at 3586 °C
Vapor Pressure	0 mmHg (approx)
Vapor Pressure	1 [mm Hg] @3586 °C

Physical description & handling notes

• Carbon, activated is a black grains that have been treated to improve absorptive ability. May heat spontaneously if not properly cooled after manufacture.
• CBI; Large Crystals; Other Solid; Large Crystals; Wet Solid; Other Solid; Dry Powder; Dry Powder; Other Solid; Liquid; Other Solid; Liquid; Dry Powder; Large Crystals
• Black powder or crystals; [Sax]
• BLACK POWDER OR SOLID IN VARIOUS FORMS. ODOURLESS WHEN PURE.
• Black grains that have been treated to improve absorptive ability.
• Steel gray to black, greasy feeling, odorless solid.

Regulatory Status

Regulatory & Food Contact	ADSORBENT; BLEACHING_AGENT: Food Additives ACTIVATED CARBON NOT LIMITED TRS 759-JECFA 31/25 FAS 70.39/NMRS 48A-JECFA 14/79 (1970) DECOLOURIZING CARBON
GHS notification summary	40.2% (1095 / 2727)

GHS Hazard Classification

GHS notification summary	40.2% (1095 / 2727)
Reported hazard statements	H319 (55.1%), H335 (51.1%)

Documented Uses

• Stable isotopes are C-12 (98.892%) and C-13 (1.108%) [Merck Index] Carbon is activated chemically or by steam. Activated carbon that is 99.9% pure is available. [CHEMINFO] Used in purifying metals, cleaning air, and as a pigment for rubber tires and inks; [HSDB]
• The pyrolysis of carbon in the presence of the other active ingredients such as sodium and potassium nitrates results in simple organic and inorganic cmpd, mostly in the form of gasses, which cause asphyxiation of pest in burrows. ...
• As strong reducing agent and is used as such in purifying metals; in electrodes, electrical devices ... and steel
• For more Uses (Complete) data for CARBON (15 total), please visit the HSDB record page.
• Food Additives -> ADSORBENT; BLEACHING_AGENT -> JECFA Functional Classes
• Processing aids not otherwise specified

Synonyms

Elemental Carbon; Carbon, Vitreous; Carbon 12; SUPERSORBON S1; RefChem:66979; DTXCID407391; CHEBI:33415; 231-153-3; 610-410-7; 97793-37-8; 05105_FLUKA; 05110_FLUKA; 05112_FLUKA; 05113_FLUKA; 05120_FLUKA; 05123_FLUKA

Frequently Asked Questions

What are the CAS number and molecular formula of Graphite?

CAS 7782-42-5; molecular formula C; molecular weight — g/mol.

What other names is Graphite known by?

Elemental Carbon, Carbon, Vitreous, Carbon 12, SUPERSORBON S1, RefChem:66979, DTXCID407391.

What is the regulatory status of Graphite?

Documented regulatory listings: ADSORBENT; BLEACHING_AGENT: Food Additives; ACTIVATED CARBON; NOT LIMITED.

Is Graphite classified as hazardous?

40.2% of GHS notifications report no hazard classification (1095 of 2727).

What are the key physical properties of Graphite?

Boiling Point: >4000 °C; Boiling Point: 3825 °C @760 [mm Hg]; Melting Point: >3500 °C; Melting Point: 4489 °C.

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.