Description

Dimethylolurea is a versatile chemical intermediate, primarily known as a methylolated urea derivative. Its bifunctional nature, featuring two reactive hydroxymethyl groups, makes it a valuable building block for synthesizing resins and polymers. This compound is essential for manufacturers in the textile, paper, and adhesive industries seeking to improve product durability and performance. We supply high-purity Dimethylolurea CAS NO 140-95-4 to meet the stringent demands of global industrial applications.

Application

• Textile Finishing Agent: A key component in the production of wrinkle-resistant and easy-care finishes for cotton and cellulose-based fabrics.
• Paper Strengthening Resin: Used to enhance the wet-strength and dry-strength properties of paper and paperboard products.
• Adhesive Formulation: Serves as a cross-linking agent and modifier in urea-formaldehyde and melamine-formaldehyde adhesives for wood composites like plywood and particleboard.
• Leather Tanning Auxiliary: Acts as a filling and retanning agent to improve the fullness, grain smoothness, and dye uniformity of leather.
• Fiber Modification: Employed in the treatment of synthetic and natural fibers to impart specific functional properties such as improved dyeability or moisture management.
• Coating Crosslinker: Functions as a low-formaldehyde or formaldehyde-free crosslinking component in specific industrial coating systems.

Basic Information

Product Name	Dimethylolurea
CAS No.	140-95-4
Molecular Formula	C3H8N2O3
Molecular Weight	120.11 g/mol
Synonyms	1,3-Bis(hydroxymethyl)urea; N,N'-Bis(hydroxymethyl)urea; DMU; Dihydroxymethylurea; Bis(hydroxymethyl)urea; Urea, 1,3-bis(hydroxymethyl)-; Methyleneurea; Uron
EINECS	205-444-0

Quality Control

Our Dimethylolurea is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, moisture content, and free formaldehyde levels. Our quality protocols are designed to meet the specifications required for industrial and specialty chemical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking or degradation. Recommended storage temperature is between 15°C and 25°C.

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.