Methanol Oxidation to Formaldehyde
2CH3OH + O2 → 2HCHO + 2H2O
نظرة عامة
Methanol is oxidized to formaldehyde by oxygen over a metal oxide catalyst. The carbon oxidation state changes from -2 in methanol to 0 in formaldehyde. This catalytic partial oxidation is the primary industrial route to formaldehyde, the simplest aldehyde.
المشاركون
| الدور | المادة | المعامل | الحالة |
|---|---|---|---|
| متفاعل | Oxygen O | 1 | (g) |
| متفاعل | Methanol CH₃OH | 2 | (l) |
| منتج | Formaldehyde CH₂O | 2 | (g) |
| منتج | Water H₂O | 2 | (l) |
مثال من الحياة اليومية
Formaldehyde is used in particleboard and MDF manufacturing, and its solutions (formalin) were historically used to preserve biological specimens.
الأهمية الصناعية
Over 50 million tonnes of formaldehyde are produced annually for resins (urea-formaldehyde, phenol-formaldehyde), plastics, and as a chemical intermediate.
الخصائص
- النوع
- Redox
- قابل للعكس
- لا
- الطاقة
- طارد للحرارة
- ΔH
- -323,0 kJ/mol
- محفز
- Silver or iron-molybdenum oxide
التفاعلات ذات الصلة
Iron(II) to Iron(III) Oxidation by Oxygen
Bleaching with Sodium Hypochlorite
Copper Reduction of Silver Ion
Aqua Regia Dissolving Gold
Cerium(IV) Reduction by Iron(II)
Copper Oxidation by Nitric Acid
Hypochlorite Oxidation of Hydrogen Peroxide
Hydrogen Peroxide as Oxidizing Agent (Acidic)
Hydrogen Peroxide Disproportionation
Displacement of Hydrogen from Acid by Magnesium
Frequently Asked Questions
What is the equation for Methanol Oxidation to Formaldehyde?
The balanced equation is: 2CH₃OH + O₂ → 2HCHO + 2H₂O.
What type of reaction is Methanol Oxidation to Formaldehyde?
Methanol Oxidation to Formaldehyde is a redox reaction.
Is Methanol Oxidation to Formaldehyde exothermic or endothermic?
Methanol Oxidation to Formaldehyde is exothermic (releases energy). The enthalpy change (ΔH) is -323.0 kJ/mol.
What conditions are needed for Methanol Oxidation to Formaldehyde?
This reaction requires a catalyst (Silver or iron-molybdenum oxide).