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词条 N-Butylamine
释义

  1. Synthesis and reactions

  2. Uses

  3. Safety

  4. References

{{DISPLAYTITLE:n-Butylamine}}{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 412364052
| Name = n-Butylamine
| ImageFile = N-Butylamine.svg
| ImageFile_Ref = {{chemboximage|correct|??}}
| ImageSize = 200
| ImageName = Skeletal formula of n-butylamine
| ImageFile1 = N-butylamine-from-xtal-1994-3D-balls.png
| ImageSize1 = 180
| ImageAlt1 = Ball-and-stick model of the N-butylamine molecule
| PIN = Butan-1-amine
| OtherNames = {{Unbulleted list|1-Aminobutane|1-Butanamine|Monobutylamine
}}
|Section1={{Chembox Identifiers
| Abbreviations = NBA
| CASNo = 109-73-9
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 8007
| ChemSpiderID = 7716
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| UNII = N2QV60B4WR
| UNII_Ref = {{fdacite|changed|FDA}}
| EINECS = 203-699-2
| UNNumber = 1125
| DrugBank = DB03659
| DrugBank_Ref = {{drugbankcite|changed|drugbank}}
| MeSHName = n-butylamine
| ChEBI = 43799
| ChEBI_Ref = {{ebicite|changed|EBI}}
| ChEMBL = 13968
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| RTECS = EO29750002
| Beilstein = 605269
| Gmelin = 1784
| SMILES = CCCCN
| StdInChI = 1S/C4H11N/c1-2-3-4-5/h2-5H2,1H3
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = HQABUPZFAYXKJW-UHFFFAOYSA-N
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
}}
|Section2={{Chembox Properties
| C=4 | H=11 | N=1
| Appearance = Colorless liquid
| Odor = fishy, ammoniacal
| Density = 740 mg mL−1
| MeltingPtK = 224
| BoilingPtK = 350 to 352
| Solubility = Miscible
| LogP = 1.056
| VaporPressure = 9.1 kPa (at 20 °C)
| HenryConstant = 570 μmol Pa−1 kg−1
| pKb = 3.22
| RefractIndex = 1.401
| Viscosity = 500 µPa s (at 20 °C)
| MagSus = -58.9·10−6 cm3/mol
}}
|Section3={{Chembox Thermochemistry
| DeltaHf = −128.9–−126.5 kJ mol−1
| DeltaHc = −3.0196–−3.0174 MJ mol−1
| HeatCapacity = 188 J K−1 mol−1
}}
|Section4={{Chembox Hazards
| ExternalSDS = hazard.com
| GHSPictograms = {{GHS flame}} {{GHS corrosion}} {{GHS exclamation mark}}
| GHSSignalWord = DANGER
| HPhrases = {{H-phrases|225|302|312|314|332}}
| PPhrases = {{P-phrases|210|280|305+351+338|310}}
| NFPA-F = 3
| NFPA-H = 2
| NFPA-R = 0
| FlashPtC = -7
| AutoignitionPtC = 312
| ExploLimits = 1.7–9.8%
| LD50 = {{Unbulleted list|366 mg kg−1 (oral, rat)|626 mg kg−1 (dermal, rabbit)|430 mg kg−1 (oral, mouse)|430 mg kg−1 (oral, guinea pig)}}[1]
| PEL = C 5 ppm (15 mg/m3) [skin][2]
| IDLH = 300 ppm[2]
| REL = C 5 ppm (15 mg/m3) [skin][2]
| LCLo = 4000 ppm (rat, 4 hr)
263 ppm (mouse, 2 hr)[1]
}}
|Section5={{Chembox Related
| OtherFunction_label = alkanamines
| OtherFunction = {{Unbulleted list|Propylamine|Isopropylamine|1,2-Diaminopropane|1,3-Diaminopropane|Isobutylamine|tert-Butylamine|sec-Butylamine|Putrescine|Pentylamine|Cadaverine}}
| OtherCompounds = 2-Methyl-2-nitrosopropane
}}
}}

n-Butylamine is an organic compound (specifically, an amine) with the formula CH3(CH2)3NH2. This colourless liquid is one of the four isomeric amines of butane, the others being sec-butylamine, tert-butylamine, and isobutylamine. It is a liquid having the fishy, ammonia-like odor common to amines. The liquid acquires a yellow color upon storage in air. It is soluble in all organic solvents.

Synthesis and reactions

It is produced by the reaction of ammonia and alcohols over alumina:

CH3(CH2)3OH + NH3 → CH3(CH2)3NH2 + H2O

n-Butylamine exhibits reactions typical of other simple alkyl amines, i.e. protonation, alkylation, acylation, condensation with carbonyls. Like other simple aliphatic amines, n-butylamine is a weak base: the pKa of [CH3(CH2)3NH3]+ is 10.78.[3]n-Butylamine is also a commonly used ligand in coordination chemistry, which can coordinate with metal ions, such as Pt2+, Pd2+ ions, and form tetrabutylamine- or dibutylamine- metal complexes.[4][5]

Uses

This compound is used as an ingredient in the manufacture of pesticides (such as thiocarbazides), pharmaceuticals, and emulsifiers. It is also a precursor for the manufacture of N,N'-dibutylthiourea, a rubber vulcanization accelerator, and n-butylbenzenesulfonamide, a plasticizer of nylon. It is used in the synthesis of Fengabine, the fungicide benomyl, and butamoxane, and the antidiabetic Tolbutamide.[6]

Safety

The LD50 to rats through the oral exposure route is 366 mg/kg.[7]

In regards to occupational exposures to n-Butylamine, the Occupational Safety and Health Administration and National Institute for Occupational Safety and Health have set occupational exposure limits at a ceiling of 5 ppm (15 mg/m3) for dermal exposure.[8]

References

1. ^{{IDLH|109739|N-Butylamine}}
2. ^{{PGCH|0079}}
3. ^{{cite journal|author=H. K. Hall, Jr.|year=1957|journal=J. Am. Chem. Soc.|volume=79|pages=5441-5444|title=Correlation of the Base Strengths of Amines|doi=10.1021/ja01577a030}}
4. ^{{cite journal |last1=Yin |first1=Xi |last2=Shi |first2=Miao |last3=Wu |first3=Jianbo |last4=Pan |first4=Yung-Tin |last5=Gray |first5=Danielle L. |last6=Bertke |first6=Jeffery A. |last7=Yang |first7=Hong |title=Quantitative Analysis of Different Formation Modes of Platinum Nanocrystals Controlled by Ligand Chemistry |journal=Nano Letters |date=11 September 2017 |volume=17 |issue=10 |pages=6146–6150 |doi=10.1021/acs.nanolett.7b02751}}
5. ^{{cite journal |last1=Yin |first1=Xi |last2=Shi |first2=Miao |last3=Kwok |first3=Kam Sang |last4=Zhao |first4=Haidong |last5=Gray |first5=Danielle L. |last6=Bertke |first6=Jeffery A. |last7=Yang |first7=Hong |title=Dish-like higher-ordered palladium nanostructures through metal ion-ligand complexation |journal=Nano Research |date=22 May 2018 |volume=11 |issue=6 |pages=3442–3452 |doi=10.1007/s12274-018-1993-0}}
6. ^Karsten Eller, Erhard Henkes, Roland Rossbacher, Hartmut Höke, "Amines, Aliphatic" Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005.{{DOI|10.1002/14356007.a02_001}}
7. ^[https://us.vwr.com/stibo/hi_res/8235547.pdf n-Butylamine MSDS]
8. ^[https://www.cdc.gov/niosh/npg/npgd0079.html CDC - NIOSH Pocket Guide to Chemical Hazards]
{{DEFAULTSORT:Butylamine, n-}}

1 : Alkylamines

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