Description

Paraformaldehyde is a high-purity polymeric form of formaldehyde, widely recognized for its controlled release of formaldehyde gas upon heating. This property makes it an indispensable reagent and intermediate in numerous industrial and laboratory synthesis processes. It is a critical raw material for manufacturers in the agrochemical, pharmaceutical, and resin industries, where consistent quality and reliable supply are paramount.

Application

• Chemical Synthesis: A key precursor for manufacturing various resins, including phenolic, urea, and melamine-formaldehyde resins used in adhesives, coatings, and molded plastics.
• Agricultural Chemicals: Serves as an intermediate in the production of herbicides, pesticides, and fungicides, contributing to crop protection solutions.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals under controlled conditions.
• Disinfectants and Biocides: Acts as a source of formaldehyde for formulating disinfectants, sterilants, and preservatives in industrial and institutional settings.
• Laboratory Reagent: Employed in histological procedures for tissue fixation and as a reagent in organic synthesis and analytical chemistry.
• Crosslinking Agent: Utilized in the textile and paper industries to impart crease resistance and wet strength to fabrics and paper products.

Basic Information

Product Name	Paraformaldehyde
CAS No.	25231-38-3
Molecular Formula	(CH₂O)ₙ (n = 8-100)
Molecular Weight	Variable (30.03)n
Synonyms	Polyoxymethylene; Paraform; Formaldehyde polymer; Trioxane polymer; Polyformaldehyde; Formagene; Aldehyde formique polymerise (French); Formaldehydpolymer (German)
EINECS	246-765-9

Quality Control

Our Paraformaldehyde is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, formaldehyde content, and moisture. Our quality commitment aligns with major industrial standards, and we can support requirements for specific grades, including those relevant for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong acids, strong bases, and oxidizing agents. Due to its polymeric nature and to prevent caking, it should be kept under conditions of low humidity. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White powder or flakes
Identification (IR)	Conforms
Assay (as CH₂O)	≥ 95.0%
Water Content	≤ 2.0%
Ash Content	≤ 0.05%
Acidity (as HCOOH)	≤ 0.05%
pH (aqueous suspension)	3.5 - 5.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.