Coating Additives

Formaldehyde, chemical formula or HCHO or CH2O, formula 30.03, also known as ant aldehyde, explosion limit: 7.0-73%. It has a strong reducing effect and is used as raw material of pesticide and disinfectant, synthetic resin, vinylon, urotropine, jilisuteol and dye, etc.

Product Name	Aldehyde Content%	Appearance	Features	Application
Formaldehyde	37	colorless transparent liquid type formaldehyde	commonly known as formalin	is widely used in chemical industry, textile, wood processing, etc
Paraformaldehyde	98	white crystalline powder	high solid content	, herbicides, synthetic resin, coatings, adhesives and other industries
High concentration formaldehyde	52	colorless transparent liquid	higher reactivity for MDI	polyethylene tetrahydrofuran, pom, such as chemical and pharmaceutical industries

 

Category	Details
Chemical Formula	HCHO; simplest aldehyde, polymerizes into paraformaldehyde
Key Applications	– Wood Adhesives: Urea-formaldehyde (UF) resins – Plastics: Phenolic resins, molding compounds – Textiles: Finishing agent for wrinkle-resistance – Disinfectants: Medical/industrial sterilization
Industrial Grades	– 37% Solution: Common aqueous solution – 50% Solution: High-concentration blends – Gas Form: Polymerization processes
Safety Risks	– Acute Exposure: Respiratory irritation, skin sensitization – Carcinogenicity: IARC Group 1 (nasal cancers) – Flash Point: 64°C (closed cup)
Regulatory Compliance	– OSHA PEL: 0.75ppm (TWA) – REACH: Authorized under strict controls – EPA: Emission limits for composite wood products
Environmental Impact	– VOC Emissions: Contributes to ground-level ozone – Wastewater Treatment: Biodegradation challenges – Carbon Footprint: Energy-intensive production
Sustainability Trends	– Green Alternatives: Bio-based adhesives (e.g., soy-based) – Process Innovations: Closed-loop systems for capture/reuse – Catalyst Development: Reducing energy consumption
Market Dynamics	– Global Demand: ~5.5M tons/year (2025) – Growth Drivers: Emerging economies, construction sector – Price Drivers: Methanol feedstock costs, energy prices

Note: Critical industrial chemical requiring rigorous safety protocols. Industry focus on reducing environmental footprint through technological advancements.

Key Characteristics

Physical & Chemical Properties

Property	Specification
Molecular Formula	CH₂O
Boiling Point	-19°C (gas) / 37% in water
Density	1.09 g/cm³ (37% solution)
Flash Point	85°C (37% solution)
Solubility	Completely miscible in water

Commercial Forms

Form	Concentration	Primary Use
Aqueous Solution	37-50%	Most common industrial form
Paraformaldehyde	91-99%	Solid, slow-release form
Gas	100%	Direct chemical synthesis

Industrial Applications

Major Uses

Industry	Application	Key Products
Resin Production	Adhesives & binders	Urea-formaldehyde resins
Construction	Composite wood products	Particleboard, MDF
Automotive	Molded components	Phenolic resins
Healthcare	Disinfection	Sterilizing solutions
Textiles	Fabric treatment	Wrinkle-resistant finishes

Safety & Handling

Health Hazards: Carcinogenic (Group 1 IARC), skin/eye irritant

Exposure Limits: 0.75 ppm (8-hr TWA), 2 ppm (STEL)

Storage: 21-25°C in corrosion-resistant containers

Stabilization: Typically contains 10-12% methanol

Production Methods

Methanol Oxidation (90% of global production)

Natural Gas Direct Conversion

Biomass Pyrolysis (emerging technology)

Conclusion

Industrial formaldehyde remains indispensable despite its toxicity concerns, with annual production exceeding 50 million tons. Future developments focus on safer handling technologies and bio-based production methods to maintain its critical role in manufacturing.

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