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Basic Organic Intermediate · CAS 50-00-0

Formaldehyde

HCHO Molar mass 30.03 g/mol

Chelora Chemicals supplies Formaldehyde (HCHO, CAS 50-00-0) as an aqueous solution (formalin), the fundamental building block for urea-formaldehyde, phenol-formaldehyde and melamine-formaldehyde resin systems used across wood adhesives, mouldings and laminates, as well as a precursor for polyol and textile-finishing chemistry. Export shipments move from Indonesia in stabilised, methanol-inhibited formulations suited to long-distance transit.

Identification Sheet REP.
CAS No.50-00-0
Molecular FormulaHCHO
Molecular Weight30.03 g/mol
AppearanceColourless aqueous solution
Assay37% / 44% / 55% HCHO (w/w)
Stabiliser7-10% Methanol (typical, to prevent polymerisation)
Assay (HCHO)37%, 44% or 55% (w/w), per buyer specification
Methanol Content7 - 10% (stabiliser, grade-dependent)
Acidity (as HCOOH)≤ 0.05%
Iron (as Fe)≤ 1 ppm
AppearanceColourless, clear aqueous solution
01 / PRODUCT DOSSIER

What Formaldehyde is, and why buyers source it

Formaldehyde's small, highly reactive carbonyl structure makes it one of the most versatile industrial building blocks, condensing readily with urea, phenol, melamine and other nucleophiles to build the thermosetting resin networks behind modern wood-based panel and laminate manufacturing.

Formaldehyde reacts with Urea, Phenol or Melamine to form methylol intermediates that further condense into cross-linked thermosetting resins, each resin system selected for its balance of cost, water resistance, and cure characteristics.

Because formaldehyde readily polymerises to paraformaldehyde in concentrated aqueous solution, commercial formalin is supplied with a methanol stabiliser and at controlled concentration and temperature to maintain solution stability during storage and transit.

02 / MANUFACTURING ROUTE

How Formaldehyde is made

An overview of the production route for orientation purposes. Our manufacturing partners' own process parameters and in-process controls are proprietary and are not disclosed beyond what is needed to interpret the certificate of analysis.

Formaldehyde is manufactured by the catalytic oxidation of Methanol, using either a silver catalyst process or a metal-oxide (mixed iron-molybdenum oxide) catalyst process, followed by absorption into water to produce the aqueous formalin solution.

Oxidation temperature and catalyst condition are controlled to maximise conversion and minimise over-oxidation to formic acid and CO2, with absorber conditions set to achieve the target solution concentration and methanol stabiliser level.

03 / APPLICATIONS

Industries and processes that use it

Formaldehyde's applications centre on resin manufacturing for wood-based panels and laminates, along with broader industrial and textile uses.

Field 01

Urea-Formaldehyde Resins

Reacted with Urea to produce adhesive resins for particleboard, MDF and plywood manufacturing.

Field 02

Phenol-Formaldehyde Resins

Reacted with Phenol to produce resins used in plywood adhesives, moulding compounds and laminates requiring higher water resistance.

Field 03

Melamine-Formaldehyde Resins

Reacted with melamine to produce high-hardness, scratch-resistant laminate and tableware resins.

Field 04

Textile & Other Industrial Uses

Used in textile finishing for crease-resistance treatments and as a chemical intermediate across a range of industrial syntheses.

04 / REACTION CHEMISTRY

How the molecule is typically carried forward

Formaldehyde's reactive carbonyl group readily forms methylol intermediates with amide and phenolic nucleophiles, which further condense into cross-linked polymer networks.

Methylol Formation

Formaldehyde reacts with Urea, Phenol or Melamine to form methylol intermediates.

Condensation

Methylol intermediates condense further, releasing water and building oligomeric chains.

Cross-Linking / Cure

Oligomers cross-link under heat and/or catalyst to form the final cured thermosetting resin network.

05 / RELATED BUILDING BLOCKS

Formaldehyde against other amines we supply

Formaldehyde is a core organic intermediate referenced across Chelora's resin-adjacent and nitrogen chemicals ranges.

ProductCAS NumberCategoryNotes
Formaldehyde50-00-0Basic organic intermediateThe product on this page — the fundamental building block for urea, phenol and melamine resins.
Urea57-13-6Solid nitrogen fertiliserThe primary co-reactant for urea-formaldehyde resins — see its product page.
Acetic Acid64-19-7Basic organic intermediateA related basic organic intermediate in our range — see its product page.
Ammonia7664-41-7Primary nitrogen feedstockThe nitrogen feedstock used alongside formaldehyde in resin-adjacent chemistry — see its product page.

Exact physical constants and purity specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide, not a specification sheet, for products other than Formaldehyde.

06 / HAZARD & HANDLING

Safety classification at a glance

Based on GHS classification as commonly listed for this substance. This is a summary for orientation only — always work from the current safety data sheet supplied with your specific batch.

H301

Toxic if swallowed.

H311

Toxic in contact with skin.

H314

Causes severe skin burns and eye damage.

H317

May cause an allergic skin reaction.

H331

Toxic if inhaled.

H341

Suspected of causing genetic defects.

Respiratory Protection

Vapour-rated respirator required.

Skin Protection

Chemical-resistant gloves and clothing, full PPE.

Formaldehyde solution is a toxic, corrosive and sensitising material requiring full PPE, vapour-rated respiratory protection, and closed-system handling wherever practical. Chelora Chemicals ships Formaldehyde in stabilised, methanol-inhibited formulation with full safety documentation, and supply is directed to buyers with appropriate industrial handling and ventilation infrastructure.

07 / STORAGE & SHELF LIFE

Keeping it on spec between delivery and use

General storage guidance for this grade. Site-specific storage rules, segregation requirements and re-test intervals should follow your own EHS procedures and the MSDS issued with your batch.

Shelf Life3 - 6 months (temperature-dependent, to avoid paraformaldehyde precipitation)
Storage Temp≥ 15°C recommended to prevent polymerisation/precipitation
ContainerHDPE/lined drums · IBC · ISO tank

Store above the recommended minimum temperature for the supplied concentration to prevent paraformaldehyde precipitation, in corrosion-resistant containers away from oxidising agents and strong alkalis. Rotate stock to use within shelf life given limited long-term storage stability.

08 / PACKING & EXPORT

How it ships from Indonesia

Standard packing and export terms for this product. Confirm exact figures against your order — they vary slightly by destination and quantity.

Standard Pack200 L drums · 1,000 L IBC · ISO tank
Min. Order1 x 20' FCL
Lead Time2 - 3 weeks
Export TermsFOB · CFR · CIF
09 / QUALITY & DOCUMENTATION

What travels with every batch

Specification is agreed before the purchase order, not discovered on arrival. Every shipment of Formaldehyde leaves with a documented, checkable paper trail.

Doc 01

Certificate of Analysis

Batch-wise assay (by titration/GC), colour and relevant physical constants, issued against the agreed specification so your QC team can check it, not just file it.

Doc 02

Safety Data Sheet

GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade of Formaldehyde shipped.

Doc 03

Technical Data Sheet

Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.

Doc 04

Certificate of Origin

Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.

Doc 05

Dangerous Goods Declaration

UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.

Doc 06

Third-Party Inspection

Independent pre-shipment inspection and re-sampling can be arranged on request, at your cost, for buyers who require it as a matter of policy.

10 / FAQ

Frequently asked questions

What buyers most often ask our sales desk about this grade.

01What is Formaldehyde used for?+
It is primarily used to manufacture urea-formaldehyde, phenol-formaldehyde and melamine-formaldehyde resins for wood-based panel adhesives, laminates and moulding compounds, with additional uses in textile finishing and chemical synthesis.
02What concentrations does Chelora Chemicals supply?+
Standard supply is 37%, 44% or 55% HCHO (w/w) aqueous solution, stabilised with 7-10% methanol, per buyer specification.
03Why is Formaldehyde solution stabilised with methanol?+
Methanol inhibits the polymerisation of formaldehyde to paraformaldehyde, which would otherwise precipitate out of solution, particularly at higher concentrations and lower storage temperatures.
04Is Formaldehyde hazardous to handle?+
Yes, it is toxic, corrosive and a skin sensitiser, requiring full PPE including vapour-rated respiratory protection; it is supplied to buyers with appropriate industrial handling infrastructure.
05How is Formaldehyde packed for export?+
In 200 L HDPE or lined drums, 1,000 L IBC totes, or ISO tank for larger continuous-consumption buyers, all with appropriate temperature control recommendations.
06What is the shelf life of Formaldehyde solution?+
Typically 3 - 6 months depending on storage temperature; storage below the recommended minimum temperature for the given concentration can cause paraformaldehyde precipitation.
07What is the typical lead time for export orders?+
Standard lead time is 2 - 3 weeks from order confirmation, depending on destination, concentration and order volume.
08Does Chelora Chemicals provide a Certificate of Analysis?+
Yes, every shipment includes a batch-specific Certificate of Analysis covering assay, methanol content, acidity and key impurity parameters.
09What is the difference between Formaldehyde and Paraformaldehyde?+
Formaldehyde is supplied as a stabilised aqueous solution (formalin), while Paraformaldehyde is a solid polymerised form that depolymerises to release formaldehyde gas when heated; the two serve different handling and dosing needs.
10Can Formaldehyde solution be diluted further by the buyer?+
Yes, buyers can dilute to their required in-process concentration, though the stabiliser ratio should be considered when significantly diluting below the supplied concentration.
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