Choosing Hegrecat TCPP Tris (2-Chloro-1-Methylethyl) Phosphate CAS:13674-84-5: Application Fit and Specification Checks

What Is Hegrecat TCPP Tris (2-Chloro-1-Methylethyl) Phosphate CAS:13674-84-5?

Hegrecat TCPP Tris (2-Chloro-1-Methylethyl) Phosphate CAS:13674-84-5 is an additive-type, low-molecular-weight halogen-phosphorus flame retardant produced by Hebei Hejia Pharmaceutical Technology Group Co., Ltd. In its standard commercial form it appears as a colorless transparent liquid with a viscosity of 60–70 mPa·s at 25 °C. The compound carries approximately 9.5% phosphorus and 32.5% chlorine, a dual-mechanism composition that is central to its flame-suppression performance.

The phosphorus fraction interferes with combustion in the condensed phase, while the chlorine fraction disrupts free-radical chain reactions in the gas phase. Together they give TCPP broad utility as an additive-type flame retardant across several polymer families.

Key Selection Criteria

Before specifying Hegrecat TCPP Tris (2-Chloro-1-Methylethyl) Phosphate CAS:13674-84-5, buyers should verify that the product's confirmed attributes match their formulation requirements.

1. Flame-Retardant Mechanism and Elemental Loading

• Phosphorus content ~9.5% — contributes char-forming, condensed-phase activity.
• Chlorine content ~32.5% — contributes gas-phase radical-quenching activity.
• The additive type (not reactive) means TCPP does not chemically bond to the polymer backbone; it must be evenly distributed throughout the formulation.
• Buyers targeting systems that already carry halogens should assess whether additional chlorine loading is acceptable under their product's regulatory and performance profile.

2. Physical Form and Processing Compatibility

• TCPP is a liquid at ambient temperature (colorless, transparent). This is favorable for in-line dosing in liquid resin streams and eliminates the dust-handling requirements associated with solid flame retardants.
• Viscosity of 60–70 mPa·s at 25 °C is low enough to support uniform dispersion in most polyurethane polyol blends and other liquid resin systems without requiring heated lines.
• Confirmed good heat stability and hydrolytic stability support its use in humid or thermally demanding processing environments.

3. Target Polymer Systems

The confirmed application scope covers:

Buyers should confirm that TCPP is explicitly recommended or accepted in their formulation specification; substitution from other flame-retardant chemistries requires independent re-qualification.

4. Packaging Format

Packaging options confirmed for Hegrecat TCPP Tris (2-Chloro-1-Methylethyl) Phosphate CAS:13674-84-5 are drum or IBC tote. Buyers with high-volume, continuous-production requirements should confirm IBC availability to avoid frequent repackaging operations. Buyers with smaller batch needs or strict inventory rotation cycles may prefer drum packaging.

Application Fit: Recommended Use Cases

Hebei Hejia Pharmaceutical Technology Group Co., Ltd. specifically recommends this product for:

• Polyurethane insulation foams — both building envelope and appliance insulation
• Structural foams — where closed-cell morphology and fire resistance are simultaneously required
• Low-density flexible foams — where maintaining softness and comfort characteristics alongside flame retardancy is the design goal

For these segments, TCPP's low viscosity and good process stability make it a practical choice during foam formulation.

Less Suitable Situations

• Applications where halogen-free flame retardancy is required (e.g., certain EU RoHS-sensitive assemblies or customer specifications mandating halogen-free status) — the ~32.5% chlorine content disqualifies TCPP in those contexts.
• Systems requiring a reactive flame retardant that bonds covalently to the polymer — TCPP is additive type only.
• Applications with strict low-viscosity constraints below the 60–70 mPa·s range at ambient temperature without the option of dilution or elevated-temperature dosing.

Specification Checks Before Purchasing

Procurement teams should review the following items with the supplier before placing an order:

1. Purity and quality control documentation — Confirm analytical testing standards used during manufacture (the product is stated to be produced under strict quality control with high purity and consistent performance; request specific QC data sheets).
2. Phosphorus and chlorine assay values — Verify that the lot values align with the ~9.5% P and ~32.5% Cl specification.
3. Viscosity certificate — Confirm 60–70 mPa·s at 25 °C on the specific batch.
4. Appearance and color number — Colorless transparent liquid; any deviation may indicate degradation or contamination.
5. Packaging condition and fill volume — Confirm drum or IBC condition and net weight per unit.
6. Storage and shelf-life guidance — Request supplier-confirmed storage conditions and recommended shelf life.
7. Regulatory compliance documentation — Buyers operating in markets with specific flame-retardant regulations (US, EU, Middle East, Southeast Asia) should request applicable SDS and any relevant compliance documentation. No specific certifications are confirmed in this guide.

Summary

Hegrecat TCPP Tris (2-Chloro-1-Methylethyl) Phosphate CAS:13674-84-5 is a well-defined halogen-phosphorus additive flame retardant with confirmed applicability across polyurethane foams, PVC, epoxy, polyester, phenolic, polystyrene, and rubber substrates. Its liquid form, low viscosity, and dual phosphorus-chlorine mechanism make it especially suitable for polyurethane foam formulations where uniform in-line dosing is required. Buyers in halogen-sensitive markets or those requiring covalent flame-retardant integration should assess alternative chemistries. Hebei Hejia Pharmaceutical Technology Group Co., Ltd. supplies this product in drum and IBC tote formats, allowing flexibility for different production volumes.