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Phenylacetaldehyd Produkt Beschreibung

Phenylacetaldehyde Struktur
122-78-1
CAS-Nr.
122-78-1
Bezeichnung:
Phenylacetaldehyd
Englisch Name:
Phenylacetaldehyde
Synonyma:
FEMA 2874;Hyacinthin;Phenylethanal;α-tolyaldehyde;2-Phenylethanal;α-Toluylaldehyde;α-Toluic aldehyde;phenylacetadehyde;PHENYLACETALDEHYDE;ALPHA-TOLUALDEHYDE
CBNumber:
CB7852954
Summenformel:
C8H8O
Molgewicht:
120.15
MOL-Datei:
122-78-1.mol

Phenylacetaldehyd Eigenschaften

Schmelzpunkt:
−10 °C(lit.)
Siedepunkt:
195 °C
Dichte
1.079 g/mL at 20 °C
Brechungsindex
n20/D 1.535(lit.)
FEMA 
2874 | PHENYLACETALDEHYDE
Flammpunkt:
188 °F
storage temp. 
2-8°C
Löslichkeit
2.21g/l slightly soluble
Aggregatzustand
Liquid
Wichte
1.075 (20/4℃)
Farbe
Clear colorless to pale yellow
Wasserlöslichkeit
2.210 g/L (25 ºC)
Sensitive 
Air Sensitive
Merck 
14,7265
JECFA Number
1002
BRN 
385791
Stabilität:
Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.
CAS Datenbank
122-78-1(CAS DataBase Reference)
NIST chemische Informationen
Benzeneacetaldehyde(122-78-1)
EPA chemische Informationen
Benzeneacetaldehyde(122-78-1)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn,F
R-Sätze: 22-36/37/38-43-11
S-Sätze: 26-36-37-24-16-7
RIDADR  UN 1170 3/PG 2
WGK Germany  2
RTECS-Nr. CY1420000
TSCA  Yes
HS Code  29122990
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H225 Flüssigkeit und Dampf leicht entzündbar. Entzündbare Flüssigkeiten Kategorie 2 Achtung P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H227 Combustible liquid Flammable liquids Category 4 Warnung P210, P280, P370+P378, P403+P235,P501
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P261 Einatmen von Staub vermeiden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P337+P313 Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P405 Unter Verschluss aufbewahren.
P403+P235 An einem gut belüfteten Ort aufbewahren. Kühl halten.

Phenylacetaldehyd Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R43:Sensibilisierung durch Hautkontakt möglich.
R11:Leichtentzündlich.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37:Geeignete Schutzhandschuhe tragen.
S24:Berührung mit der Haut vermeiden.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S7:Behälter dicht geschlossen halten.

Chemische Eigenschaften

colourless to slightly yellow liquid

Chemische Eigenschaften

Phenylacetaldehyde has been identified in many essential oils and as a volatile constituent of foods. It is a colorless liquidwith a sweet, green odor, reminiscent of hyacinth. Since it readily undergoes oxidation and polymerizes, it must be stabilized by addition of antioxidants and by dilution with, for example, diethyl phthalate before use in compositions.
Phenylacetaldehyde can be obtained in high yield by vapor-phase isomerization of styrene oxide, for example, with alkali-treated silica–alumina. Another process starts from phenylethane-l,2-diol, which can be converted into phenylacetaldehyde in high yield. The reaction is performed in the vapor phase in the presence of an acidic silica–alumina catalyst.
Phenylacetaldehyde is used in perfume compositions, in particular for hyacinth and rose notes.

Chemische Eigenschaften

Phenylacetaldehyde has a harsh, green odor reminiscent of hyacinth on dilution. It has an unpleasant, pungent, bitter flavor, turning sweet and fruit-like at low levels.

Occurrence

Identified among the constituents of several essential oils: neroli, Citrus sinensis leaves, other citrus species (flowers and leaves), narcissus, magnolia, lily, rose and tea. It is reported found in over 170 natural products including apricot, sour cherry, cooked apple, peach, fresh blackberry, crispbread, other types of bread, green tea, unprocessed rice, lemon balm, red sage, black currant, bilberry, cranberry, other berries, grapes, raisins, melon, papaya, guava fruit, pineapple, asparagus, celery leaves, carrot, parsley, peas, bell pepper, sweet pepper, peach, cabbage, peppermint oil, Scotch spearmint oil, mustard, vinegar, onion, cooked potato, tomato, cinnamon bark, cassia leaf, ginger, many cheeses, milk, yogurt, boiled egg, cooked and cured meats, beer, cognac, grape wines, cocoa, coffee, tea, roasted filbert, roasted peanut, soybean, pecans, cauliflower, broccoli, honey, avocado, passion fruit, beans, mushrooms, trassi, mango, tamarind, rice, licorice, buckwheat, lovage root, pumpkin, sweet potato, cassava, corn oil, malt, wort, dried bonito, loquat, pawpaw, maté, sweet grass oil, orange peel oil, grapefruit juice, endive, clam and Chinese quince.

Verwenden

In perfumery; intermediate in organic synthesis.

Definition

ChEBI: An aldehyde that consists of acetaldehyde bearing a methyl substituent; the parent member of the phenylacetaldehyde class of compounds.

Aroma threshold values

Detection: 4 ppb. Aroma characteristics at 1.0%: sweet, floral honey, rosy and slightly powdery with a fermented note, cocoa and tobacco with a yellow tropical fruity nuance.

Taste threshold values

Taste characteristics at 5 ppm: floral and honey-like with a sweet floral, fruity, tobacco, with a yellow tropical fruity waxy nuance.

Sicherheitsprofil

Moderately toxic by ingestion. Human skin irritant. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.

Chemical Synthesis

By Darzen glycidic ester synthesis from benzaldehyde; readily oxidizable to phenyl acetic acid.

Phenylacetaldehyd Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Phenylacetaldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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122-78-1(Phenylacetaldehyd)Verwandte Suche:


  • 2-PHENYLACETALDEHYDE
  • ALPHA-TOLUALDEHYDE
  • ALPHA-TOLUIC ALDEHYDE
  • FEMA 2874
  • α-Toluic aldehyde
  • PHENYLACETALDEHYDE
  • PHENYL ACETIC ALDEHYDE
  • Phenylacetaldehyde solution
  • Phenylacetaldehydetech
  • PHENYLACETALDEHYDE, 90+%
  • PHENYLACETALDEHYDE 90+% FCC
  • PHENYLACETALDEHYDE SOLUTION, ~50% IN DIE THYL PHTHALATE
  • Phenylacetaldehyde, tech., 90+%
  • Phenylacetaldehyde, stabilized, 98%
  • phenylethanal,phenylacetaldehyde
  • α-tolyaldehyde
  • PHENYLACETALDEHYD 98 P.
  • Phenylacetaldehyde (30-50% in Diethyl Phthalate)
  • PHENYLACETALDEHYDE 50% IN DEP
  • PHENYLACETALDEHYDE 50% IN PEA
  • PHENYLACETALDEHYDE 50% IN PG
  • PHENYLACETALDEHYDE 85% IN PEA
  • PHENYLACETALDEHYDE, NATURAL
  • Phenylacetataldehyde
  • 2-Phenylethanal
  • Acetaldehyde, phenyl-
  • Benzenacetaldehyde
  • Benzeneacetaldehyde
  • Hyacinthin
  • phenylacetadehyde
  • phenyl-acetaldehyd
  • Phenylacetaldehyde,50%
  • Phenylethanal
  • Phenylacetaldehyde, 98%, stabilized
  • α-Toluylaldehyde
  • Phenylacetaldehyde,85%
  • Phenylacetaldehyde,tech., 50 wt % in isopropyl alcohol
  • Phenylacetaldehyde (40-55% in Diethyl Phthalate)
  • Phenylacetaldehyde,α-Tolyaldehyde
  • PHENYLACETALDEHYDE, MONOMER
  • (40-55% in Diethyl Phthalate)
  • Phenylacetaldehyde 
  • Phenylacetaldehyde, stabilized, 98% 100GR
  • Phenylacetaldehyde, stabilized, 98% 500GR
  • alpha-Tolualdehyde alpha-Toluic Aldehyde
  • Phenylacetaldehyde, stabilized with 100 ppM citric acid
  • α-Tolyaldehyde alpha-Tolualdehyde alpha-Toluic Aldehyde
  • Phenyl acetic aldehyde for synthesis
  • Phenylacetaldehyde, 97.5%, stabilized with 100 ppm citric acid
  • 122-78-1
  • Building Blocks
  • Aldehydes
  • C8
  • Carbonyl Compounds
  • Organic Building Blocks
  • Aldehydes
  • C8
  • Carbonyl Compounds
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