DIBUTYL MALEATE

PRODUCT IDENTIFICATION

CAS NO. 105-76-0

DIBUTYL MALEATE 

EINECS NO. 203-328-4
FORMULA C2H2(COOC4H9)2
MOL WT. 228.29
H.S. CODE 2917.19.2700
TOXICITY Oral rat LD50: 3700 mg/kg
SYNONYMS

Maleic acid dibutyl ester; Butyl maleate; DBM;

Di-n-butyl maleate; Bibutyl maleate; 2-Butenedioic acid dibutyl ester; Dibutylester kyseliny maleinove; Dibutylmaleinat; Maleinsäuredibutylester; Dibutylester kyseliny maleinove; Other RN: 57343-98-3, 77223-90-6, 79725-21-6, 193362-56-0, 220713-30-4
SMILES C(=O)(/C=C\C(=O)OCCCC)OCCCC

CLASSIFICATION

 

EXTRA NOTES

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE clear liquid
MELTING POINT -50 C
BOILING POINT 129 C
SPECIFIC GRAVITY 0.994
SOLUBILITY IN WATER

slightly soluble

AUTOIGNITION 280 C
pH  
VAPOR DENSITY 7.9
log P(o/w) 4.16 (Octanol-water)
VAPOR PRESSURE 6.23E-04 (mmHg at 25 C)
HENRY LAW CONSTANT 3.74E-07 (atm-m3/mole at 25 C)
OH RATE CONSTANT 1.60E-11 (cm3/molecule-sec at 25 C Atmospheric )
NFPA RATINGS Health: 1 Flammability: 1 Reactivity: 0

REFRACTIVE INDEX

1.445 - 1.446

FLASH POINT

285 C

STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking (Maleic acid)

Material Safety Data Sheet

Google Scholar Search

http://www.chemvip.com/
Maleic acid dibutyl ester (DBM) is a clear, virtually colorless liquid with an ester-like odor. It is miscible for example with methanol, ethanol, acetone, diethyl ether, N,N-dimethyl formamide and toluene, immiscible with aliphatic hydrocarbons and slightly miscible with water. DBM contains about 1-5% fumaric acid dialkyl ester and 1-2% alkoxysuccinic acid dialkyl ester. Under the action of heat and in the presence of acids or bases, DBM transposes into fumaric acid dialkyl ester. DBM / DOM is a suitable intermediate for use in the production of paints and adhesives, copolymers and films. DBM / DOM permits the addition reactions normally possible with compounds having olefinic double bonds and is suitable, for example, as a dienophile for diene syntheses using the Diels-Alder reaction. By hydrogenation or acetylation, valuable intermediates can be obtained, e. g. succinic acid dimethyl ester and other derivatives of succinic acid, which are employed in many different areas of organic synthesis.

Local:
Dibutyl Maleate is used as an additive and intermediate for plastics, pigments, pharmaceuticals, and agricultural Products. Dibutyl Maleate is an intermediate for the production of paints, adhesives and copolymers. It is used in many organic synthesis including as a dienophile for diene syntheses.

SALES SPECIFICATION

APPEARANCE

clear liquid

DIBUTYL ESTERS

98.5% min

WATER

0.5% max

ACID VALUE

0.2 max (mg KOH/g)

COLOR

25 max (Pt/Co scale)

TRANSPORTATION
PACKING  
HAZARD CLASS Not regulated
UN NO.

 

SAFETY INFORMATION
Hazard Symbols: , Risk Phrases: , Safety Phrases: 24/25
PRICE INFORMATION