Polymaleic acid

• CAS: 26099-09-2
• Catalog Number: ACM26099092-3
• Category: Promotional Products
• Molecular Weight: 116.07
• Molecular Formula: C4H4O4
• Description: Maleic acid is a colorless crystalline solid having a faint odor. It is combustible though it may take some effort to ignite. It is soluble in water. It is used to make other chemicals and for dyeing and finishing naturally occurring fibers.;DryPowder; Liquid;Solid;Solid;WHITE CRYSTALS.
• Synonyms: (z)-2-Butenedioic acid homopolymer
• IUPAC Name: (Z)-but-2-enedioic acid
• Canonical SMILES: C(=CC(=O)O)C(=O)O
• InChI: InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
• InChI Key: VZCYOOQTPOCHFL-UPHRSURJSA-N
• Boiling Point: 275 °F at 760 mm Hg (decomposes) (NTP, 1992)
• Melting Point: 266 to 268 °F (NTP, 1992);130.5 °C;Mp 300-302 ° (sealed tube);132.5 °C (OECD Guideline 102 (Melting point / Melting Range));130.5°C;131 °C
• Flash Point: 127 °C
• Density: 1.59 at 68 °F (USCG, 1999);1.590 g/cu cm at 20 °C;Relative density (water = 1): 1.59
• Solubility: greater than or equal to 100 mg/mL at 66° F (NTP, 1992);7 mg/mL at 25 °C;In water, 788 g/L at 25 °C, 3926 g/L at 97.5 °C;79.000 lb/100 lb water at 77 °F;In water, 441,000 mg/L at 25 °C;Freely soluble in alcohol; soluble in acetone, glacial acetic acid; slightly soluble in ether; practically insoluble in benzene;Solubility (g/100 g) at 25 °C: benzene 0.024, chloroform 0.11, carbon tetrachloride 0.002, diethyl ether 7.57;Solubility (g/100 g): acetone 38.6 (at 20 °C), methanol 41.0 (at 22.5 °C), ethanol 30.2 (at 0 °C) and 34.4 (at 22.5 °C), 1-propanol 20.0 (at 0 °C) and 24.3 (at 22.5 °C), 2-butenenitrile 4.38 (at 50 °C);Insoluble in chloroform;441 mg/mL at 25 °C;Solubility in water, g/100ml at 25 °C: 78 (soluble)
• Appearance: liquid
• Color/Form: Monoclinic prisms from water;White crystals from water, alcohol and benzene;Colorless crystals
• Complexity: 119
• Corrosivity: May corrode metals when wet.
• Covalently-Bonded Unit Count: 1
• Decomposition: When heated to decomp it emits acrid smoke and irritating fumes.;135 °C
• EC Number: 203-742-5;233-569-0
• Exact Mass: 116.010959g/mol
• Formal Charge: 0
• H-Bond Acceptor: 4
• H-Bond Donor: 2
• Heavy Atom Count: 8
• ICSC Number: 1186
• Monoisotopic Mass: 116.010959g/mol
• NSC Number: 25940
• Odor: Faint acidulous odor
• Other Experimental: Converted in part into the much higher-melting fumaric acid (MP: 287 °C) when heated to a temp slightly above the MP.;Heat of combustion: -1356.3 kJ/mol (crystal);Heat of combustion: -2,800 cal/g = -117x10+5 J/kg;log Kow = -1.3 at pH 2.5 and 20 °C;Henry's Law constant = 1.4X10-12 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 7.95X10-12 cu cm/molecule-sec at 25 °C (est);Ozone reaction rate constant = 8.8X10-19 cu cm/molecule-sec at 25 °C (est)
• pKa: pKa 4.54 (25 °)
• Rotatable Bond Count: 2
• RTECS Number: OM9625000
• Stability: Stable under recommended storage conditions.
• UNII: 91XW058U2C
• UN Number: 2215;3261;2215
• Vapor Pressure: Negligible (NTP, 1992);1.34X10-5 mm Hg at 25 °C (OECD Guideline 104 (Vapor Pressure Curve));Vapor pressure, Pa at 25 °C: 0.0048
• XLogP3: -0.3