Description

Bis(Hydroxymethyl)Urea is a versatile chemical compound, also known as dimethylolurea, primarily used as a key intermediate in the synthesis of thermosetting resins and as a cross-linking agent. Its bifunctional hydroxymethyl groups make it a valuable building block for creating durable, water-resistant polymers and coatings. This product is essential for manufacturers in the textile, paper, adhesive, and wood composite industries seeking to enhance product performance and durability.

Application

• Resin Intermediate: A primary monomer for the production of urea-formaldehyde (UF) and melamine-urea-formaldehyde (MUF) resins.
• Textile Finishing: Used as a durable press or anti-wrinkle agent for cotton and cellulose-based fabrics.
• Paper Coating & Sizing: Imparts wet-strength and improves printability in paper products.
• Adhesive Formulation: Serves as a cross-linker and curing agent in wood glue and industrial adhesives.
• Wood Composite Binder: A key component in binders for particleboard, medium-density fiberboard (MDF), and plywood.
• Leather Tanning Auxiliary: Acts as a filling and tanning agent to improve leather quality.
• Corrosion Inhibitor: Used in formulations for metal treatment and cooling water systems.
• Slow-Release Fertilizer: Functions as a nitrogen source in controlled-release agricultural formulations.

Basic Information

Product Name	Bis(Hydroxymethyl)Urea
CAS No.	25155-29-7
Molecular Formula	C3H8N2O3
Molecular Weight	120.11 g/mol
Synonyms	Dimethylolurea; 1,3-Bis(hydroxymethyl)urea; N,N'-Bis(hydroxymethyl)urea; DMU; Urea, 1,3-bis(hydroxymethyl)-; Formaldehyde urea adduct; Methylolurea; Hydroxymethylurea
EINECS	246-675-1

Quality Control

Our Bis(Hydroxymethyl)Urea is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including assay, moisture content, and free formaldehyde analysis. Certificates of Analysis (COA) are provided with each shipment, detailing all relevant specifications. We adhere to industry best practices and can support compliance requirements for various industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept away from moisture to prevent caking and decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Water Content (Karl Fischer)	≤ 1.0 %
Free Formaldehyde	≤ 0.5 %
Melting Point	126 - 132 °C
pH (10% solution)	6.0 - 8.0

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