ブチルアルデヒド 化学特性,用途語,生産方法
外観
無色～わずかにうすい黄色, 澄明の液体
溶解性
水に可溶 (7g/100ml水), アルコールに易溶。エタノール及びアセトンに極めて溶けやすく、水にやや溶けやすい。
解説
CH
3CH
2CH
2CHO．酪酸の還元物に相当するアルデヒド．系統的命名法ではブタナールという．
用途
分析用試薬。オゾン定量用 : この試薬はオゾンで酸化されて酪酸となるから、空気中のオゾンの定量に応用されている。
用途
ノルマルブチルアルデヒドは、2エチルヘキサノール（2EH）、ノルマルブタノール（NBA）、トリメチロールプロパン（TMP）、ポリビニルブチラール等の原料に使用されます
用途
合成樹脂原料,2-エチルヘキシルアルコール原料,ゴム加硫促進剤
特徴
1．ノルマルブチルアルデヒド（NBD）は、4つの炭素を持つアルデヒドの一種です。
2．ノルマルブチルアルデヒドは、ほとんどの有機溶媒に任意に溶解します。
使用上の注意
不活性ガス封入
説明
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.
化学的特性
Butyraldehyde is a highly flammable, colorless liquid with a pungent odor.
天然物の起源
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.).
使用
n-Butyraldehyde is used to make rubberaccelerators, synthetic resins, and plasticizers;and as a solvent.
製造方法
By dry distillation of calcium butyrate and calcium formate.
定義
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.
安全性
ブチラルデヒドはその刺激性と揮発性の高さから取り扱いには十分な注意が必要です皮膚や目に対する刺激が報告されており長期間の曝露は呼吸器系に悪影響を及ぼす可能性がありますしたがって作業環境では適切な保護具の着用が推奨されますまた揮発性が高いため良好な換気と漏洩防止措置が必要です
一般的な説明
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.
空気と水の反応
Highly flammable. Insoluble in water.
反応プロフィール
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].
危険性
Flammable, dangerous fire risk.
健康ハザード
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/m
3.At a higher concentration, 174 g/m
3 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.
火災危険
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.
生産方法
ブチラルデヒドは主にnブタノールの酸化によって製造されますこの過程では触媒を使用して酸素の存在下でnブタノールを酸化させブチラルデヒドを生成しますまたヒドロホルミル化反応によるプロピレンの直接酸化によっても製造されることがあります
化学反応性
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.
安全性プロファイル
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
発がん性
Although butyraldehyde interacts
with DNA, no experimental studies of its carcinogenic
potency were found.
環境運命予測
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.
輸送方法
UN1129 Butyraldehyde, Hazard Class: 3;
Labels: 3—Flammable liquid
不和合性
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
廃棄物の処理
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.
ブチルアルデヒド 上流と下流の製品情報
原材料
準備製品