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Maleic anhydride CAS#108-31-6
CAS Number: 108-31-6
Chemical Formula: C4H2O3
Synonyms:
MaleicAnhydride>97%
MALEIC ANHYDRIDE 98+%
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: White Powder
Maleic Anhydride (MAN) is an organic compound with the chemical formula C4H203. It is the acid anhydride of maleic acid and in its pure state it is a colourless or white solid with an acrid odour. Maleic anhydride is truly a remarkable molecule in that it possesses two types of chemical functionality making it uniquely useful in chemical synthesis and applications.
Maleic Anhydride is a multifunctional chemical intermediate with applications in several fields of chemical industry. Its major end use is as feedstock in the production of unsaturated polyester resins (UPR).
These resins are used both in glass-reinforced and in unreinforced applications. The UPR end uses includes a wide range of applications in construction, marine and automobile industries.
Maleic anhydride Chemical Properties |
Melting point | 51-56 °C (lit.) |
Boiling point | 200 °C (lit.) |
bulk density | 700-800kg/m3 |
density | 1.48 |
vapor density | 3.4 (vs air) |
vapor pressure | 0.16 mm Hg ( 20 °C) |
refractive index | 1.4688 (estimate) |
Fp | 218 °F |
storage temp. | Store below +30°C. |
solubility | Chloroform (Slightly), Ethyl Acetate (Slightly) |
form | powder |
pka | 0[at 20 ℃] |
color | White |
Odor | Mild acrid odor. |
PH | 0.8 (550g/l, H2O, 20℃)Hydrolysis |
explosive limit | 1.4-7.1%(V) |
Water Solubility | 79 g/100 mL (25 ºC) |
Sensitive | Moisture Sensitive |
Merck | 14,5704 |
BRN | 106909 |
Henry's Law Constant | (atm?m3/mol): Not applicable - reacts with water |
Exposure limits | NIOSH REL: TWA 1 ppm (0.25 mg/m3), IDLH 10 ppm; OSHA PEL: TWA 0.25 ppm; ACGIH TLV: TWA 0.25 ppm with an intended change of 0.1 ppm. |
Dielectric constant | 51.0（60℃） |
Stability: | Stable. Combustible. Incompatible with water, strong oxidizing agents, alkali metals, strong bases, amines, most common metals, polymerization catalysts and accelerators. |
Cosmetics Ingredients Functions | FILM FORMING |
InChI | 1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H |
InChIKey | FPYJFEHAWHCUMM-UHFFFAOYSA-N |
SMILES | O=C1OC(=O)C=C1 |
LogP | -2.61 at 20℃ |
CAS DataBase Reference | 108-31-6(CAS DataBase Reference) |
NIST Chemistry Reference | 2,5-Furandione(108-31-6) |
EPA Substance Registry System | Maleic anhydride (108-31-6) |
Safety Information |
Hazard Codes | C |
Risk Statements | 22-34-42/43 |
Safety Statements | 22-26-36/37/39-45 |
RIDADR | UN 2215 8/PG 3 |
OEB | C |
OEL | TWA: 1 mg/m3 (0.25 ppm) |
WGK Germany | 1 |
RTECS | ON3675000 |
F | 21 |
Autoignition Temperature | 870 °F |
TSCA | TSCA listed |
HS Code | 2917 14 00 |
HazardClass | 8 |
PackingGroup | III |
Storage Class | 6.1D - Non-combustible acute toxic Cat.3 |
Hazard Classifications | Acute Tox. 4 Oral |
Hazardous Substances Data | 108-31-6(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 1090 mg/kg LD50 dermal Rabbit 2620 mg/kg |
IDLA | 10 mg/m3 |
Product Application of Maleic anhydride CAS#108-31-6
Maleic Anhydride is heterocyclic compound used in the manufacture of unsaturated polyester resins. It has a wide range of other applications; it is used in synthetic tensides, insecticides, herbicides and fungicides.
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