Description

High quality Fumaric Acid CAS *******8
Trans-butanediol acid has bacteriostatic and antiseptic functions. It can be used as an acidulant, acidity regulator, acidifier. White odorless powder or, with a special sourness that is as strong as 1.5 times of citric acid. It is soluble in ethanol (5.*6g/**0g,*0°c), slightly soluble in water (0.*3g/**0ml,*5°c), and in ether, and very slightly soluble in chloroform. It has no hygroscopicity and will sublime at **0°c. Boiling point: **0°c (decompose). It will turn to maleic anhydride at **0°c and will generate DL-malic acid if boiled with water.
 
Product information
CAS number                     *******8
EC index number            **********-X
EC number                       ********0
Grade                                NF, JPE
Hill Formula                     C₄H₄O₄
Chemical formula           HOOCCHCHCOOH
Molar Mass                      **6.*7 g/mol
 
Physicochemical Information
Boiling point                    **0 °C (***3 hPa) (sublimed)
Density                              1.*4 g/cm3 (*0 °C)
Flashpoint                       **3 °C
Ignition temperature     **5 °C
Melting Point                   **7 °C
pH value                           2.1 (4.9 g/l, H₂O, *0 °C)
Vapor pressure               <0.**1 hPa (*0 °C)
Solubility                           4.9 g/l
 
Toxicological Information
LD *0 oral                         LD*0 Rat ***0 mg/kg
LD *0 dermal                   LD*0 Rabbit ****0 mg/kg
 
Specifications
Assay (calc. on anhydrous substance)    *9.5 - **0.5 %
Identity (IR)                                                  passes the test
Identity (JPE 1)                                             passes the test
Identity (JPE 2)                                             passes the test
Identity (JPE 3)                                             passes the test
The appearance of the solution                              passes the test
Sulfate (SO₄)                                                 ≤ 0.**0 %
Heavy metals (as Pb)                                  ≤ *0 ppm
As (Arsenic)                                                   ≤ 2 ppm
Maleic acid (HPLC)(NF)                               ≤ 0.1 %
Maleic acid (HPLC)(JPE)                              passes test
Water (K. F.)                                                 ≤ 0.5 %
Sulfated ash                                                  ≤ 0.*5 %
Residual solvents (ICH Q3C)                     excluded by the production process