8.14737
DL-Malic acid
for synthesis
Synonym(s):
DL-Malic acid, DL-Hydroxysuccinic acid, Hydroxybutanedioic acid
About This Item
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Quality Level
Assay
≥99.0% (acidimetric)
form
solid
autoignition temp.
349 °C
potency
>3200 mg/kg LD50, oral (Rat)
pH
2.3 (20 °C, 10 g/L in H2O)
mp
128-132 °C
transition temp
flash point 203 °C
solubility
558 g/L
density
1.60 g/cm3 at 20 °C
bulk density
800 kg/m3
storage temp.
2-30°C
SMILES string
[O-]C(=O)C(O)CC(=O)[O-].[H+].[H+]
InChI
1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
InChI key
BJEPYKJPYRNKOW-UHFFFAOYSA-N
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This Item | 94916 | 27606 | M0875 |
|---|---|---|---|
| assay ≥99.0% (acidimetric) | assay - | assay 99-100.5% (alkalimetric) | assay ≥98% (capillary GC) |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| solubility 558 g/L | solubility H2O: soluble 646.6 g/L at 20 °C | solubility acetone: soluble 17.75 g/ 100 gm at 20 °C, diethyl ether: soluble 0.84 g/100 gm at 20 °C, dioxane: soluble 22.70 g/100 gm at 20 °C, ethanol: soluble 45.53 g/100 gm at 20 °C, methanol: soluble 82.70 g/100 g at 20 °C, water: soluble 55.8 g/100 gm at 20 °C, benzene: insoluble | solubility H2O: 50 mg/mL, clear, colorless to faintly yellow |
| form solid | form - | form solid | form - |
| storage temp. 2-30°C | storage temp. 2-8°C | storage temp. - | storage temp. - |
| mp 128-132 °C | mp 131-133 °C (lit.) | mp 129-133 °C, 131-133 °C (lit.) | mp 131-133 °C (lit.) |
Application
- Study on the inhibitory effect of DL‐malic acid on the phase structure and combustion characteristics of coal: This study examines the potential of DL-malic acid as an antioxidant inhibitor in the prevention of coal fires (Sun et al., 2024).
Analysis Note
Melting range (lower value): ≥ 128 °C
Melting range (upper value): ≤ 132 °C
Identity (IR): passes test
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
397.4 °F
Flash Point(C)
203 °C
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