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Fumaric acid CAS 110-17-8

Chemical Property:

Molecular Formula C4H4O4
Molar Mass 116.07
Density 1.62
Melting Point 298-300 °C (subl.) (lit.)
Boling Point 137.07°C (rough estimate)
Flash Point 230 °C
JECFA Number 618
Water Solubility 0.63 g/100 mL (25 ºC)
Solubility Soluble in DMSO, water, insoluble in fat-soluble organic solvents
Vapor Presure 1.7 mm Hg ( 165 °C)
Appearance White powder or colorless crystal
Color White
Merck 14,4287
BRN 605763
pKa 3.02, 4.38(at 25℃)
PH 3.19(1 mM solution);2.57(10 mM solution);2.03(100 mM solution);
Storage Condition Store below +30°C.
Stability Stable at room temperature. Decomposes at around 230 C. Incompatible with strong oxidizing agents, bases, reducing agents. Combustible.
Sensitive Easily absorbing moisture
Explosive Limit 40%
Refractive Index 1.5260 (estimate)
MDL MFCD00002700
Physical and Chemical Properties Characteristics of monoclinic colorless needle-like or lobular Crystal, fruit sour taste.
solubility: slightly soluble in water, ether and acetic acid, soluble in ethanol. Almost insoluble in chloroform.
Use For the manufacture of Unsaturated Polyester Resin, pesticides, acid and amino acids

Product Detail

Product Tags

Hazard Symbols Xi – Irritant
Risk Codes 36 – Irritating to the eyes
Safety Description 26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
UN IDs UN 9126
WGK Germany 1
RTECS LS9625000
TSCA Yes
HS Code 29171900
Toxicity LD50 orally in Rabbit: 9300 mg/kg LD50 dermal Rabbit 20000 mg/kg

 

Introduction

Fumaric acid. The following is an introduction to the properties, uses, preparation methods and safety information of transbutalic acid:

 

Quality:

- Transbutadiic acid is a colorless crystal or white solid with a pungent sour taste.

- It is soluble in water and many organic solvents such as alcohols and ethers.

- At high temperatures, transbutylic acid breaks down to produce carbon dioxide and acetone.

 

Use:

- It is widely used in the preparation of polyester resins for the manufacture of products such as coatings, plastics, and fibers.

 

Method:

- Transbutenedic acid can be obtained by the reaction of brominated butene and sodium carbonate. The specific synthesis method involves multiple steps, including the preparation of butene, bromination reaction, and alkaline hydrolysis.

 

Safety Information:

- Transbutadiic acid is an irritating compound that may cause irritation and burns in contact with the skin and eyes.

- Wear appropriate personal protective equipment such as gloves, glasses, and protective clothing during handling.

- Avoid inhaling its dust or vapours and should operate in a well-ventilated area.

- Local regulations and safe operating procedures should be followed when storing and handling the compound.

 


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