二苯甲烷

Description

Diphenylmethane · CAS 101-81-5 · C13H12. UNII K3E387I0BC. Boiling Point: 264.5 °C; Boiling Point: 264.5 °C @760 [mm Hg]; Melting Point: 25.4 °C.

Identification

CAS Registry Number	101-81-5
PubChem CID	7580
Molecular formula	C13H12
IUPAC name	benzylbenzene
UNII (FDA)	K3E387I0BC

Computed Descriptors

Molecular Weight	168.23
XLogP3	4.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	2
Exact Mass	168.093900383
Monoisotopic Mass	168.093900383
Topological Polar Surface Area	0
Heavy Atom Count	13
Formal Charge	0

Physical & Chemical Properties

Boiling Point	264.5 °C
Boiling Point	264.5 °C @760 [mm Hg]
Melting Point	25.4 °C
Flash Point	130 °C
Flash Point	266 °F (130 °C) (CLOSED CUP)
Solubility	In water, 14.1 mg/L at 25 °C
Solubility	In water, 14.5 mg/L
Density	1.008 @25 °C
Vapor Density	5.8 (Air= 1)
Vapor Pressure	0.00821 [mmHg]

Physical description & handling notes

• Liquid
• Colorless solid; mp = 26.5 deg C; [Hawley] Liquid; [MSDSonline] Forms needles with a harsh geranium-like odor; [Ullmann]
• Orthorhombic needles
• Long, colorless needles
• Odor of oranges
• Harsh herbaceous odor reminiscent of geranium leaves

Regulatory Status

GHS notification summary	2.2% (37 / 1665)

GHS Hazard Classification

GHS notification summary	2.2% (37 / 1665)
Reported hazard statements	H400 (93.4%), H410 (95.6%)

Documented Uses

• Used for organic synthesis; in dyes; in fragrances, flavor compounds, and perfumery; in solvents for cellulose lacquers; in the manufacture of hexachlorophene, benzophenone, and pharmaceuticals; [HSDB] Used in fragrances, dyes, polyesters, and jet fuels; [Ullmann]
• As a component of solvents for cellulose lacquers.
• In the manufacturing of hexachlorophene.
• Prepared from methylene chloride and benzene with aluminum chloride as catalyst.
• Use in fragrances in the USA amounts to less than 4000 lb/yr. Concentration in final product (%): soap: usual 0.03, max 0.2; detergent: usual 0.005, max 0.05; creams, lotions: usual 0.01, max 0.1; perfume: usual 0.05, max 0.8.
• (1977) PROBABLY GREATER THAN 2.72X10+6 GRAMS

Synonyms

Diphenylmethane; 101-81-5; Benzylbenzene; Ditan; Ditane; Benzene, 1,1'-methylenebis-; Diphenyl methane; Methane, diphenyl-; 1,1'-Dimethylenebis(benzene); Benzene, (phenylmethyl)-; 1,1'-METHYLENEBISBENZENE; DTXSID1041891; AI3-28021-X; K3E387I0BC; AI3-00748; NSC-4708

Frequently Asked Questions

What are the CAS number and molecular formula of Diphenylmethane?

CAS 101-81-5; molecular formula C13H12; molecular weight — g/mol.

What other names is Diphenylmethane known by?

Diphenylmethane, 101-81-5, Benzylbenzene, Ditan, Ditane, Benzene, 1,1'-methylenebis-.

Is Diphenylmethane classified as hazardous?

2.2% of GHS notifications report no hazard classification (37 of 1665).

What are the key physical properties of Diphenylmethane?

Boiling Point: 264.5 °C; Boiling Point: 264.5 °C @760 [mm Hg]; Melting Point: 25.4 °C; Flash Point: 130 °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.