2-Hexanone

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Chemical compound (C6H12O)

title: "2-Hexanone" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hexanones", "ketone-solvents"] description: "Chemical compound (C6H12O)" topic_path: "general/hexanones" source: "https://en.wikipedia.org/wiki/2-Hexanone" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Chemical compound (C6H12O) ::

| verifiedrevid = 415525032 | Name = 2-Hexanone | ImageFile = 2-Hexanone.png | ImageSize = 150px | ImageName = Skeletal formula of hexan-2-one | ImageFile1 = 2-Hexanone-3D-balls.png | ImageSize1 = 180px | ImageName1 = Ball-and-stick model of hexan-2-one | PIN = Hexan-2-one | OtherNames = Methyl butyl ketone; Methyl n-butyl ketone; MNBK; Butyl methyl ketone; MBK; n-Butyl methyl ketone; Propylacetone | Reference= | Section1 = {{Chembox Identifiers | ChemSpiderID_Ref = | ChemSpiderID = 11095 | InChI = 1/C6H12O/c1-3-4-5-6(2)7/h3-5H2,1-2H3 | InChIKey = QQZOPKMRPOGIEB-UHFFFAOYAQ | ChEMBL_Ref = | ChEMBL = 195861 | StdInChI_Ref = | StdInChI = 1S/C6H12O/c1-3-4-5-6(2)7/h3-5H2,1-2H3 | StdInChIKey_Ref = | StdInChIKey = QQZOPKMRPOGIEB-UHFFFAOYSA-N | CASNo_Ref = | CASNo = 591-78-6 | UNII_Ref = | UNII = 6QDY60NH6N | EINECS = 209-731-1 | PubChem = 11583 | SMILES = O=C(C)CCCC | RTECS = MP1400000 | Section2 = {{Chembox Properties | C=6|H=12|O=1 | Appearance = Colorless to light yellow liquid | Odor = sharp, acetone-like | Density = 0.8113 g/cm3 | Solubility = 1.4% (14 g/L) | Solvent = water, acetone, ethanol, ethyl ether | RefractIndex = 1.403 (20 °C) | Viscosity = 0.63 mPa·s (20 °C) | VaporPressure = 1.3 kPa (20 °C) | MeltingPtC = -55.5 | BoilingPtC = 127.6 | MagSus = −69.1·10−6 cm3/mol | Section7 = {{Chembox Hazards | GHSPictograms = | GHSSignalWord= Danger | HPhrases = | PPhrases = | NFPA-H = 2 | NFPA-F = 3 | NFPA-R = 0 | FlashPtC = 25 | ExploLimits = ?-8% | AutoignitionPtC = 423 | LD50 = 2590 mg/kg (oral, rat) 2430 mg/kg (oral, mouse) 4860 mg/kg (dermal, rabbit) 2590 mg/kg (oral, guinea pig) | PEL = TWA 100 ppm (410 mg/m3) | IDLH = 1600 ppm | REL = TWA 1 ppm (4 mg/m3) | LC50 = 8000 ppm (rat, 4 hr) | LCLo = 20,000 ppm (guinea pig, 70 min) | LDLo = 914 mg/kg (rat, oral)

2-Hexanone (methyl butyl ketone, MBK) is a ketone used as a general solvent and in paints. It dissolves cellulose nitrate, vinyl polymers and copolymers, and natural and synthetic resins. It is recommended as a solvent because it is photochemically inactive; however it has a very low safe threshold limit value. 2-Hexanone is absorbed through the lungs, orally and dermally and its metabolite, 2,5-hexanedione, is neurotoxic. Animal tests have shown that the neurotoxic effect of 2-hexanone may be potentiated by simultaneous administration of 2-butanone (methyl ethyl ketone, MEK).

References

References

  1. ''[[Merck Index]]'', 11th Edition, '''5955'''.
  2. CRC Handbook of Chemistry and Physics, 75th ed. (1995)
  3. {{PGCH. 0325
  4. {{IDLH. 591786. 2-Hexanone
  5. Dieter Stoye. (2007). "[[Ullmann's Encyclopedia of Industrial Chemistry]]". Wiley.
  6. Jerrold B. Leikin. (2008). "Poisoning and Toxicology Handbook". Informa.
  7. Wilhelm Neier. (2007). "Ullmann's Encyclopedia of Industrial Chemistry". Wiley.

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hexanonesketone-solvents