Methanol Oxidation to Formaldehyde
2CH3OH + O2 → 2HCHO + 2H2O
ภาพรวม
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.
ผู้เข้าร่วม
| บทบาท | สาร | สัมประสิทธิ์ | สถานะ |
|---|---|---|---|
| สารตั้งต้น | Oxygen O | 1 | (g) |
| สารตั้งต้น | Methanol CH₃OH | 2 | (l) |
| ผลิตภัณฑ์ | Formaldehyde CH₂O | 2 | (g) |
| ผลิตภัณฑ์ | Water H₂O | 2 | (l) |
ตัวอย่างในชีวิตประจำวัน
Formaldehyde is used in particleboard and MDF manufacturing, and its solutions (formalin) were historically used to preserve biological specimens.
ความสำคัญทางอุตสาหกรรม
Over 50 million tonnes of formaldehyde are produced annually for resins (urea-formaldehyde, phenol-formaldehyde), plastics, and as a chemical intermediate.
คุณสมบัติ
- ประเภท
- Redox
- ย้อนกลับได้
- ไม่
- พลังงาน
- คายความร้อน
- ΔH
- -323.0 kJ/mol
- ตัวเร่งปฏิกิริยา
- Silver or iron-molybdenum oxide
ปฏิกิริยาที่เกี่ยวข้อง
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).