Complaint
Trans-butenedioic acid has bacteriostatic and antiseptic function. It can be used as acidulant, acidity regulator, acidifier. White odorless powder or, with speical sourness that is as strong as 1.5 times of citric acid. It is soluble in ethanol (5.76g/100g,30°c), slightly soluble in water (0.63g/100ml,25°c) and in ether, and very slightly soluble in chloroform. It has no hygroscopicity, and will sublime at 200°c. Boiling point: 290°c (decompose). It will turn to maleic anhydride at 230°c, and will generate DL-malic acid if boiled with water.
Other name:Trans-Butenedioic acid
Quality standard:FCC V
CAS NO.:110-17-8
HS CODE:29171900
M.F.:C4H4O4
Specification:HWS/CWS
Appearance:White or off-white fine powder
| Item | Food&Feed Grade | Industry Grade |
| Appearance | White crystalline powder | / |
| Purity(based on C4H4O4) | 99.5%-100.5% | 99.0%min |
| Heavy metals(Pb) | ≤10ppm | ≤10ppm |
| Arsenic(As) | ≤3ppm | ≤5ppm |
| Water Content | ≤0.5% | ≤0.5% |
| Melting range | 286°C~302°C | 286°C~302°C |
| Residue on Ignition | ≤0.1% | ≤0.1% |
| Chroma( in 5% ethanol) | ≤10 Hazen | / |
| Maleic acid | ≤0.1% | ≤0.1% |
| Sodium citrate | Sodium citrate | 6132-4-3 | 99% | 29181500 |
| Citric acid | Citric acid Monohydrate | 5949-29-1 | 99.90% | 2918140000 |
| Citric acid Anhydrous | 77-92-9 | 99.90% | ||
| Fumaric Acid | Fumaric Acid | 110-17-8 | 29171900 | |
| L-Malic Acid | L-Hydroxy butanedioic acid | 97-67-6 | 99% | 29181100 |
| DL-Malic Acid | 2-hydroxy butane diacid | 617-48-1 | 99% | 29181100 |
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