2-Heptanon

Produktnavn:

2-Heptanone

Synonymer:

2-Oxoheptane 1-Methylhexanal;2-Heptanone,98%;2-Heptanone,Methyl pentyl ketone;2-Heptanone, pure, 98%;2-Heptanone, 98%, pure;2-Heptanone, 98% 100ML;2-Heptanone, 98% 1LT;amyl-methyl-cetone(french)

CAS:

110-43-0

MF:

C7H14O

MW:

114.19

EINECS:

203-767-1

Product Categories:

H; NMR-referansestandarder; NMR-stabile isotoper; Spektroskopi; Stabile isotoper; Karbonstålbøyer; ACS og reagenskvalitetsløsningsmidler; Ravfargede glassflasker; Ernæringsforskning; Fytokjemikalier etter plante (mat / krydder / urt); ReagentPlus; ReagentPlus løsningsmiddelgrad Produkter; Halvmasse løsningsmidler; Løsemiddelflasker; Løsemiddel etter applikasjon; Løsemiddelpakningsalternativer; Løsningsmidler; Industrielle / fine kjemikalier; G-HA-Alfabetisk; HA-HTAnalytiske standarder; Alfabetiske oversikter; Zingiber officinale (ingefær)

Mol-fil:

110-43-0.mol

Melting point 

-35 ° C

Boiling point 

149 °C

density 

0.82

damptetthet

3.94 (vs air)

damptrykk

2.14 mm Hg ( 20 °C)

FEMA 

2544 | 2-HEPTANONE

refractive index 

n20/D 1.408(lit.)

Fp

106 ° F

storage temp. 

Flammables area

løselighet

water: soluble4.21 g/L at 20°C

form 

Liquid

farge

Clear colorless

explosive limit

1.11-7.9%(V)

Odor Threshold

0.0068ppm

Vannløselighet

4,3 g / l (20 ºC)

JECFA Number

283

Merck 

14 46663

BRN

1699063

Henry's Law Constant

3,59 ved 37 ° C (statisk headspace-GC, Bylaite et al., 2004)

Eksponeringsgrenser

TLV-TWA 235 mg / m3 (50 ppm) (ACGIH), 465 mg / m3 (100 ppm) (NIOSH). .

Stabilitet:

Stable. Flammable. Incompatible with strong oxidizing agents, strong reducing agents, strong bases.

CAS DataBase Reference

110-43-0(CAS DataBase Reference)

NIST Chemistry Reference

2-Heptanone(110-43-0)

EPA Substance Registry System

2-Heptanon (110-43-0)

Hazard Codes 

Xn

Risk Statements 

22-38-40-48/20/22-20/22-10

Sikkerhetserklæringer

36-24/25

RIDADR 

UN 2810 6.1 / PG 3

WGK Tyskland

2

RTECS 

MJ5250000

Autoignition Temperature

739 °F

TSCA

Ja

HazardClass

3

PackingGroup

III

HS kode

29141990

Data om farlige stoffer

110-43-0(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: 1670 mg/kg LD50 dermal Rabbit 10332 mg/kg

Beskrivelse

2-Heptanon har akarakteristisk banan, lett krydret lukt. 2-Heptanon kan fremstilles ved oksidering av metyl-n-amylkarbinol; også fra n-amylpropionsyre eller fra etylbutylacetat.

Kjemiske egenskaper

2-Heptanon har fruktbarhet, krydret, kanel, banan, litt krydret lukt.

Kjemiske egenskaper

colourless liquid

Kjemiske egenskaper

Metylamylketon er en klar fargeløs væske med en mild, bananlignende lukt.

Fysiske egenskaper

Colorless liquid with a banana-like odor. Can be detected at a concentration of 140 μg/kg (Buttery et al., 1969a). Cometto-Mu?iz et al. (2000) reported nasal pungency threshold concentrations ranging from approximately 195 to 935 ppm. An odor threshold concentration of 6.8 ppbv was reported by Nagata and Takeuchi (1990).

Uses

Solvent for nitrocellulose lacquers, synthetic flavoring, perfumery.

Uses

Methyl amyl ketone is used as a flavoringagent and as a solvent in lacquers andsynthetic resins.

Definition

ChEBI: A dialkyl ketone with methyl and pentyl as the alkyl groups.

Preparation

By oxidation of methyl n-amyl carbinol; also from n-amyl propionic acid or from ethyl butyl acetate.

Aroma terskelverdier

Påvisning: 1 ppb til 1,33 ppm; gjenkjenning: 2,66 til 3,73 spm; aromaegenskaper ved 1,0%: osteaktig ketonisk, litt grønn voksaktig, bananfruktig.

Taste threshold values

Taste characteristics at 20 ppm: cheesy, fruity, coconut, waxy green, creamy, fungal with buttery and brown fruity nuances.

Generell beskrivelse

A clear colorless liquid. Flash point 126°F. Less dense than water and only slightly soluble in water. Hence floats on water. Vapors heavier than air. Density 6.8 lb / gal. Used as a synthetic flavoring and in perfumes.

Luft- og vannreaksjoner

Brannfarlig. Svakt løselig i vann.

Reaktivitetsprofil

2-Heptanon reagerer eksotermisk med mange syrer og baser for å produsere brennbare gasser (f.eks. H2). Varmen kan være tilstrekkelig til å starte en brann i den ureagerte delen. Reaksjoner med reduksjonsmidler som hydrider, alkalimetaller og nitrider produserer brannfarlig gass og varme. Uforenlig med isocyanater, aldehyder, cyanider, peroksider og anhydrider. Uforenlig med mange oksidasjonsmidler inkludert salpetersyre, salpetersyre / hydrogenperoksidblanding og perklorsyre. Kan danne peroksider [USCG, 1999].

Hazard

Moderate fire risk. Toxic by inhalation, skin and eye irritant, narcotic in high concentration.

Helserisiko

Inhalation can cause headache, fatigue, nausea, vomiting, dizziness, stupor, drowsiness, disturbed vision, and unconsciousness. Skin contact can cause moderate irritation, defatting, and dermatitis. Ingestion may cause irritation of lips and mouth, gastro-intestinal irritation, nausea, diarrhea, drowsiness, loss of consciousness, weak and rapid pulse, cold-pale complexion.

Helserisiko

Exposure to methyl amyl ketone causedirritation of mucous membranes, mild tomoderate congestion of the lungs, and narcosis in test animals. A 4-hour exposure to a4000-ppm concentration in air was lethal torats; 1500–2000 ppm produced lung irrita[1]tion and narcosis. The concentration at whichit produces similar symptoms in humans isnot known.
Den orale toksisiteten til denne forbindelsen er lav. Den irriterende virkningen på huden bør være lav til veldig lav.
LD50 value, oral (mice): 730 mg/kg.

Brannfarlig

Combustible liquid, flash point (closed cup) 39.9°C (102°F), (open cup) 48.9°C (12°F); vapor density 3.9 (air = 1) vapor pressure 2.6 torr at 20°C (68°F); autoignition tempera[1]ture 393°C (740°F); fire-extinguishing agent: “alcohol” foam; a water spray may be used to cool below its flash point.
Metylamylketon danner en eksplosiv blanding med luft i området 1,1% [ved 66 ° C (150,8 ° F)] til 7,9% [ved 121 ° C (249,8 ° F)] i volum. Det kan reagere eksplosivt med sterke syrer, alkalier og oksidasjonsmidler.

Safety Profile

Moderately toxic by ingestion. Mildly toxic by inhalation and skin contact. A skin irritant. A flammable liquid when exposed to heat or flame; can react with oxidizing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also KETONES.

Source

Identified as one of 140 volatile constituents in used soybean oils collected from a processing plant that fried various beef, chicken, and veal products (Takeoka et al., 1996). Also identified as a volatile constituent released by fresh coffee beans (Coffea canephora variety Robusta and Coffea arabica) at different stages of ripeness (Mathieu et al., 1998).

Environmental fate

Biological. Heukelekian and Rand (1955) reported a 10-d BOD value of 0.50 g/g which is 17.8% of the ThOD value of 2.81 g/g.
Chemical/Physical. Atkinson et al. (2000) studied the kinetic and products of the gas-phase reaction of 2-heptanone with OH radicals in purified air at 25 °C and 740 mmHg. A relative rate constant of 1.17 x 10-11 cm3/molecule·sec was calculated for this reaction. Reaction products identified by GC, FTIR, and atmospheric pressure ionization tandem mass spectroscopy were (with respective molar yields): formaldehyde, 0.38; acetaldehyde, λ0.05; propanal, λ0.05; butanal, 0.07; pentanal, 0.09; and molecular weight 175 organic nitrates.
2-Heptanone will not hydrolyze because it does not contain a hydrolyzable functional group. Burns in air releasing carbon monoxide and carbon dioxide.

Shipping

UN1110 n-Amyl Methyl ketone, Hazard Class: 3; Labels: 3-Flammable liquid.

Waste Disposal

Oppløs eller bland materialet med et brennbart løsningsmiddel og brenn det i en kjemisk forbrenningsovn utstyrt med etterbrenner og skrubber. Alle føderale, statlige og lokale miljøbestemmelser må overholdes.

Råvarer

Etylacetoacetat -> Kalsiumkloridoppløsning 36-40%, (1 boks = 27 kg) -> Fedd olje -> 2-Heptanol

Preparation Products

(R) - (-) - 2-AMINOHEPTAN -> 2-Heptanol -> okt-2-enal