Formaldehyde
CH2O
formaldehyde
Consulting for Formaldehyde
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Identification
- CAS Number
- 30525-89-4
- UN Number
- 2213
- PubChem CID
- 712
Physical-chemical properties
- Molecular Formula
- CH2O
- Molar Mass
- 30.03 g/mol
- IUPAC Name
- formaldehyde
Chemical Identifiers
- InChI
- InChI=1S/CH2O/c1-2/h1H2
- InChI Key
- WSFSSNUMVMOOMR-UHFFFAOYSA-N
Overview
Formaldehyde (CAS 30525-89-4) is the simplest aldehyde compound with high reactivity and preservative properties. This fundamental organic compound, with the molecular formula CH2O and a molecular weight of 30.026 g/mol, serves as one of the most important building blocks in industrial chemistry. At room temperature, formaldehyde exists as a colorless gas with a pungent, irritating odor, though it is commonly handled and distributed as an aqueous solution known as formalin, typically containing 37-40% formaldehyde by weight. The chemical structure of formaldehyde features a carbon atom double-bonded to oxygen and single-bonded to two hydrogen atoms, making it highly reactive toward nucleophiles. This reactivity stems from the polarized carbonyl group, which readily participates in condensation reactions, polymerization processes, and cross-linking mechanisms. The compound's high volatility and water solubility make it particularly useful in various industrial applications requiring rapid distribution or penetration. Formaldehyde demonstrates exceptional antimicrobial properties, effectively eliminating bacteria, viruses, and fungi through protein denaturation and nucleic acid cross-linking. While formaldehyde operates through aldehyde chemistry, other reactive compounds like 3,7-dinitroso-1,3,5,7-tetrazabicyclo[3.3.1]nonane also find specialized applications in chemical synthesis, though with different reaction mechanisms. Key industrial applications include resin production for adhesives and composite materials, textile finishing processes where it provides wrinkle-resistance and durability, and pharmaceutical manufacturing as an intermediate compound. The substance also serves critical roles in laboratory settings for specimen preservation and sterilization procedures. OYSI maintains reliable supplies of technical-grade formaldehyde solutions to support diverse industrial applications across European markets.
Safety & Classification
No Hazard Classification
This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.
Transport (ADR)
| UN Number | 2213 |
| ADR Class | 4.1 |
| Packing Group | III |
| Tunnel Code | E |
| Proper Shipping Name | Paraformaldehyd |
| Marine Pollutant | No |
Frequently Asked Questions
What is formaldehyde?
Formaldehyde is a simple organic compound with the chemical formula CH2O and molecular weight of 30.026 g/mol. It is the simplest aldehyde, consisting of a carbon atom bonded to two hydrogen atoms and one oxygen atom via a double bond. Formaldehyde is naturally occurring and widely used in industrial applications as a preservative, disinfectant, and chemical intermediate in manufacturing processes.
What are the physicochemical properties of formaldehyde?
Formaldehyde is a colorless gas at room temperature with a pungent, suffocating odor. It has a boiling point of -19°C and is highly soluble in water, forming formalin solutions. The compound is highly reactive due to its aldehyde functional group and readily polymerizes. It is flammable and can form explosive mixtures with air in certain concentrations.
What is formaldehyde used for?
Formaldehyde is primarily used in the production of resins, particularly urea-formaldehyde and phenol-formaldehyde resins for wood products and adhesives. It serves as a disinfectant and preservative in various industries, including textiles, paper manufacturing, and cosmetics. Additionally, it is used as a chemical intermediate in producing plastics, synthetic fibers, and various organic compounds in pharmaceutical and chemical manufacturing.
How to handle formaldehyde safely?
Formaldehyde requires careful handling with appropriate personal protective equipment including respiratory protection, chemical-resistant gloves, and eye protection. Work should be conducted in well-ventilated areas or under fume hoods to minimize inhalation exposure. Avoid direct skin contact and ensure proper training on handling procedures. Keep away from ignition sources due to its flammable nature and maintain good hygiene practices during use.
How to store formaldehyde correctly?
Formaldehyde should be stored in tightly sealed containers in cool, dry, well-ventilated areas away from heat sources and ignition points. Keep containers away from incompatible materials such as strong oxidizers and acids. Storage areas should be equipped with appropriate ventilation systems and spill containment measures. Regular inspection of containers for leaks or deterioration is essential for safe storage.
What to do in case of contact with formaldehyde?
Immediate removal from exposure is essential in case of formaldehyde contact. For skin contact, wash immediately with plenty of water for at least 15 minutes and remove contaminated clothing. In case of eye contact, flush with water for at least 15 minutes. If inhaled, move to fresh air immediately. Seek medical attention if symptoms persist or for significant exposures, and provide safety data sheet information to medical personnel.
How to dispose of formaldehyde appropriately?
Formaldehyde disposal must comply with local, national, and EU waste regulations as it is considered hazardous waste. Small quantities can be neutralized through controlled chemical treatment before disposal. Larger quantities require collection by licensed waste management companies for proper treatment or incineration. Never dispose of formaldehyde in regular waste streams or pour down drains without proper treatment and regulatory approval.
How to transport formaldehyde?
Formaldehyde is classified under ADR Class 4.1 (flammable solids), Packing Group III for transport purposes. It must be packaged in UN-approved containers with proper labeling and documentation. Transport vehicles require appropriate placarding and drivers need ADR certification. Shipping papers must include proper shipping names, hazard classes, and emergency response information in accordance with dangerous goods transportation regulations.
Is formaldehyde subject to specific regulations?
Formaldehyde is subject to various European regulations including REACH registration requirements and CLP classification obligations. It is regulated under occupational exposure limits in workplace environments and subject to emission standards in various applications. Specific restrictions may apply to consumer products containing formaldehyde, particularly in textiles and wood products, with mandatory labeling requirements for certain concentration levels.
Where to buy formaldehyde in Europe?
Formaldehyde is available through OYSI, a European distributor of technical chemicals serving industrial and professional customers across Europe. As a specialized chemical distributor, OYSI provides formaldehyde in various grades and concentrations suitable for different industrial applications. Contact OYSI directly for specific product availability, technical specifications, packaging options, and delivery arrangements to your European location.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.