Durable Flame Retardant for Cotton Fabrics, Phosphorus-Nitrogen Based Reactive Flame Retardant, 20120-33-6

DURABLE FLAME RETARDANT FOR COTTON FABRICS

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

Short Identity Section

Detailed Identification

Description:
This product is a phosphorus-nitrogen based reactive flame retardant finish developed for fabrics based on cotton, linen, viscose, and cellulosic fibers. Thanks to its active N-hydroxymethyl groups, it chemically bonds to fabric fibers, imparting durable flame retardant properties. It can be used together with water and oil repellent systems and is suitable for multi-functional textile applications.

2. PHYSICAL AND CHEMICAL PROPERTIES

Technical Specifications

Additional Physical Data

Note: Values are typical and may vary by source and production batch.

3. SOLUBILITY PROFILE

Note: The product is completely miscible with water.

4. CHEMICAL PROPERTIES AND REACTIONS

Incompatibilities

• Strong oxidizing agents

• Strong bases (may affect pH and reactivity)

Chemical Reactions

• Cross-linking: The active N-hydroxymethyl groups react with hydroxyl groups of cellulose fibers, forming covalent bonds (ether linkages) that provide durable flame retardancy.

• Synergistic Effect: The combination of phosphorus and nitrogen provides high flame retardant efficiency through synergistic action in both the condensed and gas phases.

5. SPECIFICATIONS

Packaging Options

6. APPLICATIONS AND INDUSTRIAL USES

6.1 Application Areas

6.2 Features and Benefits

• Provides durable flame retardant performance.

• High efficiency through the synergistic effect of phosphorus and nitrogen.

• Strong bonding to cotton and other cellulosic fibers.

• Compatible with most dye types.

• Minimal change in fabric color.

• Can be used with water and oil repellent systems.

• Low toxicity.

• High wash durability.

• Suitable for industrial textiles and protective clothing applications.

6.3 Recommended Application Recipe

6.4 Application Process (Pad-Dry-Cure Method)

1. Pad the fabric in the prepared bath.

2. Pick-up: 70 – 80%.

3. Drying: 100-120°C.

4. Curing: 150-170°C.

5. If necessary, rinse and final dry.

Note: Optimum process conditions should be determined in production based on fabric type and desired performance.

7. BIOLOGICAL AND STRUCTURAL PROPERTIES

Note: This product is an industrial textile chemical. It is not intended for biological, pharmaceutical, or food applications.

8. BIOCHEMICAL APPLICATIONS

Note: Not applicable for this industrial textile chemical.

9. SAFETY AND TOXICOLOGY

9.1 Acute Toxicity

9.2 Chronic Toxicity

9.3 GHS Classification

Note: GHS classification varies among sources. The above table reflects the most commonly reported classifications. Always refer to the supplier's SDS for the authoritative classification.

9.4 Precautionary Statements

9.5 Safety Precautions and PPE

Hazards:

• Harmful if swallowed or inhaled

• Causes skin and serious eye irritation

• May cause an allergic skin reaction

• May cause respiratory irritation

• May cause cancer (according to some sources)

PPE (recommended):

• Chemical-resistant gloves

• Safety goggles

• Suitable work clothing

• Respiratory protection (if dust/mist is generated)

9.6 Environmental Fate

10. TRANSPORT INFORMATION

Note: According to available sources, the product is not regulated as a dangerous good for transport.

11. REGULATORY INFORMATION

Note: The substance is listed in the TSCA Inventory and has an EC number, indicating REACH registration.

12. STORAGE AND HANDLING

13. FIREFIGHTING MEASURES

14. ACCIDENTAL RELEASE MEASURES

15. FIRST AID MEASURES

16. RAW MATERIALS AND DOWNSTREAM PRODUCTS

16.1 Raw Materials (Upstream)

16.2 Downstream Products

17. SECTORAL SUITABILITY AND USAGE LEVELS

18. CARBON DIOXIDE ABSORPTION AND REAGENTS

Not applicable. This product is an industrial textile chemical and is not used for CO₂ absorption or as a chemical reagent.

19. DERIVATIVES AND RELATED COMPOUNDS

Note: Pyrovatex CP and FRC-2 are commercial trade names for the same active substance.

20. SUMMARY AND CRITICAL WARNINGS

SUMMARY

This product is a phosphorus-nitrogen based reactive flame retardant finish developed for fabrics based on cotton, linen, viscose, and cellulosic fibers. Thanks to its active N-hydroxymethyl groups, it chemically bonds to fabric fibers, imparting durable flame retardant properties. It can be used together with water and oil repellent systems and is suitable for multi-functional textile applications.

The chemical name is 3-(Dimethylphosphono)-N-methylolpropionamide, with CAS number 20120-33-6 and EC number 243-528-9. It is available in two grades: CP-80 (80% active matter) and CP-89 (89% active matter).

Key Properties

Main Application Areas

Key Safety Points

• HARMFUL: Harmful if swallowed (H302) and if inhaled (H332).

• IRRITANT: Causes skin irritation (H315) and serious eye irritation (H319).

• SENSITIZING: May cause an allergic skin reaction (H317).

• RESPIRATORY IRRITATION: May cause respiratory irritation (H335).

• CARCINOGENIC RISK: May cause cancer (H350) according to some sources.

• PPE REQUIRED: Use chemical-resistant gloves, safety goggles, and suitable work clothing.

• STORAGE: Store in a cool, dry, well-ventilated area, away from direct sunlight. Protect from freezing.

• DISPOSAL: Dispose of according to local regulations.

Critical Warnings

• The product is a reactive flame retardant that chemically bonds to cellulosic fibers.

• May cause skin and eye irritation, allergic skin reaction, and respiratory irritation.

• Some sources classify it as a Category 1B carcinogen.

• This TDS contains completed toxicological, transport, firefighting, and first aid data, but always refer to the supplier's official SDS/MSDS.

• Do not use this TDS as a substitute for the official SDS/MSDS.

• Users are responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements.

Disclaimer:
This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on the original source document, verified CAS/EC numbers, and data completed from reliable sources (manufacturer SDSs, technical databases). However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. Users are responsible for testing the product in their own processes and applications. All local, national, and international regulations must be followed when working with this Durable Flame Retardant for Cotton Fabrics.