Butyraldehyd

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H225：Flüssigkeit und Dampf leicht entzündbar.

  H319：Verursacht schwere Augenreizung.

• Sicherheit

  P210：Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.

  P233：Behälter dicht verschlossen halten.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P303+P361+P353：BEI BERÜHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.

  P337+P313：Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

  P370+P378：Bei Brand: zum Löschen verwenden.

Butyraldehyde Chemische Eigenschaften,Einsatz,Produktion Methoden

• ERSCHEINUNGSBILD

  FARBLOSE FLüSSIGKEIT MIT STECHENDEM GERUCH.

• PHYSIKALISCHE GEFAHREN

  Die Dämpfe sind schwerer als Luft und können sich am Boden ausbreiten. Fernzündung möglich.

• CHEMISCHE GEFAHREN

  Bildung explosionsfähiger Peroxide wahrscheinlich. Kann polymerisieren. Reagiert mit Aminen, Oxidationsmitteln, starken Basen und Säuren.

• ARBEITSPLATZGRENZWERTE

  TLV nicht festgelegt (ACGIH 2005).
  MAK nicht festgelegt (DFG 2006).
  

• AUFNAHMEWEGE

  Aufnahme in den Körper durch Inhalation der Dämpfe und durch Verschlucken.

• INHALATIONSGEFAHREN

  Nur ungenügende Angaben vorhanden über die Geschwindigkeit, mit der eine gesundheitsschädliche Konzentration in der Luft beim Verdampfen bei 20°C erreicht wird.

• WIRKUNGEN BEI KURZZEITEXPOSITION

  WIRKUNGEN BEI KURZZEITEXPOSITION:
  Der Stoff ist reizend auf die Augen, die Haut und die Atemwege.

• LECKAGE

  Persönliche Schutzausrüstung: Atemschutzfilter für organische Gase und Dämpfe. NICHT in die Umwelt gelangen lassen. Ausgelaufene Flüssigkeit möglichst in abdichtbaren Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.

• R-Sätze Betriebsanweisung:

  R11:Leichtentzündlich.

• S-Sätze Betriebsanweisung:

  S9:Behälter an einem gut gelüfteten Ort aufbewahren.
  S29:Nicht in die Kanalisation gelangen lassen.
  S33:Maßnahmen gegen elektrostatische Aufladungen treffen.

• Aussehen Eigenschaften

  C4H8O; n-Butyraldehyd. Farblose Flüssigkeit mit stechendem Geruch.

• Gefahren für Mensch und Umwelt

  Leichtentzündlich.
  Starke Reizung von Augen, Haut und Atmungsorganen.
  LD₅₀ (oral, Ratte): 2490 mg/kg

• Schutzmaßnahmen und Verhaltensregeln

  Geeignete Schutzhandschuhe als kurzzeitiger Spritzschutz.

• Verhalten im Gefahrfall

  Dämpfe nicht einatmen.
  Mit flüssigkeitsbindendem Material, z.B. Rench Rapid aufnehmen. Der Entsorgung zuführen. Nachreinigen.
  Kohlendioxid, Wasser, Pulver.
  Brennbar. Dämpfe schwerer als Luft. Mit Luft Bildung explosionsfähiger Gemische möglich.

• Erste Hilfe

  Nach Hautkontakt: Mit viel Wasser abwaschen.
  Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 10 Minuten ausspülen. Sofort Augenarzt hinzuziehen.
  Nach Einatmen: Frischluft.
  Nach Verschlucken: Reichlich Wasser trinken. Erbrechen auslösen. Arzt hinzuziehen.
  Nach Kleidungskontakt: Kontaminierte Kleidung entfernen.
  Ersthelfer: siehe gesonderten Anschlag

• Sachgerechte Entsorgung

  Mit einer konz. wässrigen Natriumhydrogensulfitlösung versetzten und so in die Bisulfitaddukte überführen. Dann in die halogenfreien, organischen Lösemittelabfälle.

• Beschreibung

  Butyraldehyde (butanal, IUPAC) is a water-white liquid with a pungent aldehyde odor. Butyraldehyde is a dangerous fire risk, with a flammable range of 2.5%–12.5% in air. Boiling point is 168°F (75°C), flash point is 10°F (?12°C), and ignition temperature is 446°F (230°C). It is slightly soluble in water, with a specific gravity of 0.8, which is lighter than water. Vapor density is 0.804, which is lighter than air. In addition to flammability, butyraldehyde is corrosive and causes severe eye and skin burns. It may be harmful if inhaled. The four-digit UN identification number is 1129. The NFPA 704 designation is health 3, flammability 3, and reactivity 2. The primary uses of butyraldehyde are in plastics and rubber and as a solvent.

• Chemische Eigenschaften

  colourless liquid with a very unpleasant smell

• Chemische Eigenschaften

  Butyraldehyde has a characteristic pungent odor.

• Chemische Eigenschaften

  Butyraldehyde is a highly flammable, colorless liquid with a pungent odor.

• Occurrence

  Reported found in the essential oils from flowers, fruits, leaves or bark of Monarda fistulosa L., Litsea cubeba, Bulgarian clary sage, cajeput, Eucalyptus cinerea, E. globules, and others, as well as in apple and strawberry aromas. Also reported found in fresh apple, pears, carrots, peas, soybean, butter, milk, black tea, roast chicken, peanuts, loganberry, honey, white wine and hog plums (Spondias mombins L.).

• Verwenden

  n-Butyraldehyde is used to make rubberaccelerators, synthetic resins, and plasticizers;and as a solvent.

• Verwenden

  Butanal is used in the manufacture of rubber accelerators, synthetic resins, solvents, and plasticizers. n-Butyraldehyde is used as an intermediate in the manufacturing of plasticizers, alcohols, solvents, and polymers (such as 2-ethylhexanol, n-butanol, trimethylolpropane, n-butyric acid, polyvinyl butyral, and methyl amyl ketone). It is also used as an intermediate to make pharmaceuticals, agrochemicals, antioxidants, rubber accelerators, textile auxiliaries, perfumery, and flavors. It has no therapeutic use at the present time.

• Verwenden

  1. Butyraldehyde is an important intermediate. n-Butanol can be prepared by hydrogenation of n-butyraldehyde; 2-ethylhexanol can be prepared by condensation dehydration and then hydrogenation, and n-butanol and 2-ethylhexanol are the main raw materials of plasticizer. Oxidation of n-butyraldehyde can produce n-butyric acid; condensation with formaldehyde can produce trimethylolpropane, which is a plasticizer for synthesizing alkyd resin and raw material for air drying oil; condensation with phenol to produce oil-soluble resin; and urea Condensation can produce alcohol-soluble resin; the products condensed with polyvinyl alcohol; butylamine; The condensate is used as celluloid; resin; solvent for rubber and pharmaceutical products; pharmaceutical industry is used to make "Mianertong"; "pyrimethamine"; methamphetamine, etc. Plasticizers, synthetic resins, rubber accelerators, pesticides and other important intermediate raw materials.
  2. Butyraldehyde is an important chemical raw material. It is also used in the preparation of flavors and fragrances. It is contained in various essential oils such as flowers, leaves, fruits, grasses, dairy products, and alcohol in nature. [Food additive usage limit (mg/kg): soft drink 0.71; cold drink 4.8; Candy 2.9; baked goods 5.4; alcohol 0.50; sugar 0.25. ]. It is usually diluted before adding the essence, which has a certain effect on coordinating and increasing the elegance of the top fragrance.
  3. Can be used as anesthetic and stimulant.

• Verwenden

  Chiefly in the manufacture of rubber accelerators, synthetic resins, solvents, plasticizers.

• Definition

  ChEBI: A member of the class of butanals that consists of propane bearing a formyl substituent at the 1-position. The parent of the class of butanals.

• synthetische

  By dry distillation of calcium butyrate and calcium formate.

• Aroma threshold values

  Detection: 19 to 37 ppb; recognition: 11 to 27 ppb

• Taste threshold values

  Taste characteristics at 5 ppm: musty, fusel, fermented, bready and yeasty with a malty nuance.

• Allgemeine Beschreibung

  A clear liquid with a pungent odor. Flash point 20°F. Boiling point 75.7°F (Hawley's). Less dense than water and insoluble in water. Vapors heavier than air.

• Air & Water Reaktionen

  Highly flammable. Insoluble in water.

• Reaktivität anzeigen

  A colorless liquid, Butyraldehyde can react with oxidizing materials. In contact with strong acids or bases Butyraldehyde will undergo an exothermic condensation reaction. The dry aldehyde may undergo some polymerization reaction. Reacts vigorously with chlorosulfonic acid, nitric acid, sulfuric acid (oleum). [Sax, 9th ed., 1996, p. 607].

• Hazard

  Flammable, dangerous fire risk.

• Health Hazard

  Inhalation will cause irritation and possibly nausea, vomiting, headache, and loss of consciousness. Contact with eyes causes burns. Skin contact may be irritating.

• Health Hazard

  n-Butyraldehyde is a mild skin and eye irritant.The liquid in 100% pure form producedmoderate irritation on guinea pig skin. Theirritation resulting from 20 mg in 24 hours on rabbit eye was moderate. A higher dosecould produce severe irritation.
  Toxicity of n-butyraldehyde is very low.The effect is primarily narcotic. No toxiceffect, however, was observed in mice from 2-hour exposure at a concentration of 44.6 g/m³.At a higher concentration, 174 g/m³ for30 minutes, it exhibited a general anestheticeffect on rats. Subcutaneous administrationof a high dose, >3 g/kg, produced the sameeffect, affecting the kidney and bladder.

• Brandgefahr

  Behavior in Fire: Vapors are heavier than air and may travel considerable distance to a source of ignition and flash back. Fires are difficult to control due to ease of reignition.

• Chemische Reaktivität

  Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: May occur in the presence of heat, acids or alkalis; Inhibitor of Polymerization: Not pertinent.

• Biochem/physiol Actions

  Taste at 10 ppm

• Sicherheitsprofil

  Moderately toxic by ingestion, inhalation, skin contact, intraperitoneal, and subcutaneous routes. Severe skin and eye irritant. Human immunologcal effects by inhalation: delayed hypersensitivity. See also ALDEHYDES. Highly flammable liquid. To fight fire, use foam, CO2, dry chemical. Incompatible with oxidzing materials. Reacts vigorously with chlorosulfonic acid, HNO3, oleum, H2SO4. When heated to decomposition it emits acrid smoke and fumes

• mögliche Exposition

  Mutagen,Human Data; Primary Irritant. Used in making syntheticresins, solvents, and plasticizers

• Erste Hilfe

  If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.Medical observation is recommended for 24
  48 h afterbreathing overexposure, as pulmonary edema may bedelayed. As first aid for pulmonary edema, a doctor orauthorized paramedic may consider administering a corticosteroid spray

• Carcinogenicity

  Although butyraldehyde interacts with DNA, no experimental studies of its carcinogenic potency were found.

• Environmental Fate

  Butanal does not possess high acute toxicity but is a potent irritant of the skin, eyes, and upper respiratory tract. The mechanism of toxicity probably involves direct reaction between the active aldehyde group and cellular components.

• Lager

  Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Protect against physical damage. Before entering confinedspace where this chemical may be present, check to makesure that an explosive concentration does not exist. Outsideor detached storage is preferred. Prior to working withButyraldehyde you should be trained on its proper handlingand storage. Store in tightly closed containers in a cool,well-ventilated area away from incompatible materialslisted above. Metal containers involving the transfer of thischemical should be grounded and bonded. Drums must beequipped with self-closing valves, pressure vacuum bungs,and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers ofthis chemical. Sources of ignition, such as smoking andopen flames, are prohibited where this chemical is used,handled, or stored in a manner that could create a potentialfire or explosion hazard.

• Versand/Shipping

  UN1129 Butyraldehyde, Hazard Class: 3; Labels: 3—Flammable liquid

• Toxicity evaluation

  The primary degradation process in soil is expected to be biodegradation. A number of biological screening studies have demonstrated that butyraldehyde is readily biodegradable.
  The major environmental fate processes for butyraldehyde in water are biodegradation and volatilization. A number of biological screening studies have demonstrated that butyraldehyde is readily biodegradable. Volatilization half-lives of 9 h and 4.1 days have been estimated for a model river (1-m deep) and a model pond, respectively. Aquatic hydrolysis, adsorption to sediment, and bioconcentration are not expected to be important fate processes.

• Inkompatibilitäten

  May form explosive mixture with air. Butyraldehyde can presumably form explosive peroxides, and may polymerize due to heat or contact with acids or alkalis. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, caustics, ammonia, aliphatic amines; alkanolamines, aromatic amines. May accumulate static electrical charges, and may cause ignition of its vapors. Possible self-reaction in air; undergoes rapid oxidation to

• Waste disposal

  Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Butyraldehyde Upstream-Materialien And Downstream Produkte

Butyraldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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