- ▸ Flame retardancy: Flame retardant for polyurethane foams
- ▸ Plasticizing: Plasticizer in polymer systems
- ▸ Adhesives & sealants: Binding agents and sealants
- ▸ Construction materials: Insulating and construction materials
- ▸ Coatings: Paints, lacquers, and varnishes
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Tris(1-chloro-2-propyl) phosphate (TCPP) is the chlorinated phosphate ester that is the workhorse flame retardant for polyurethane foam. It combines chlorine (vapor-phase) and phosphorus (condensed-phase) action in one low-viscosity liquid. Identity: CAS 13674-84-5.
What it is
Tris(1-chloro-2-propyl) phosphate (CAS 13674-84-5) is a low-viscosity chlorinated phosphate liquid. The chlorine and phosphorus together make it an efficient FR for both rigid and flexible PU foam. It is not a halogen-free product.
How it performs in fire
It acts in the vapor phase (chlorine radicals quenching the flame) and the condensed phase (phosphorus promoting char), which is why it is so effective in foam at modest loadings. Confirm regulatory status, which is evolving for several chlorinated phosphates.
Applications
TCPP is used as the standard flame retardant in rigid and flexible polyurethane foam (insulation, furniture, spray foam). For halogen-free foam FR, compare TEP. See halogen-free options in the flame retardants guide.
Forms, grades and handling
TCPP is supplied as a clear, low-viscosity liquid in drums, IBCs and bulk. Properties are typical reference values; the Certificate of Analysis (CoA) for the lot you buy governs. Handle per the current Safety Data Sheet (SDS), and confirm regulatory status and restrictions for your market and end use — flame-retardant regulation evolves. Each lot ships with CoA, TDS and SDS.
Bulk supply and RFQ
RawSource sources Tris direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your polymer or system, the fire test you must pass, your maximum loading, and whether the application must be halogen-free, and we will quote the right grade. See the full range and selection logic in the flame retardants guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / class | Flame retardant (chlorinated phosphate ester) |
| Flame-retardant type | Chlorinated phosphate ester |
| Role in fire performance | Vapor + condensed phase (halogen + phosphorus) |
| CAS Number | 13674-84-5 |
| Molecular Formula | C9H18Cl3O4P |
| Molecular Weight | 327.6 g/mol |
| Handling | Refer to the current SDS |
Frequently Asked Questions
What is TCPP used for?
Tris(1-chloro-2-propyl) phosphate (TCPP, CAS 13674-84-5) is a chlorinated phosphate ester used as the standard flame retardant for rigid and flexible polyurethane foam, combining vapor-phase chlorine and condensed-phase phosphorus action.
Is TCPP halogen-free?
No — TCPP is a chlorinated phosphate ester, so it is not halogen-free. For halogen-free polyurethane-foam flame retardancy, phosphate esters such as TEP are alternatives. Confirm regulatory status for your market.
How is bulk TCPP supplied and quoted?
RawSource supplies TCPP in bulk with CoA, TDS and SDS per lot. Pricing is quote-based on grade and volume; submit an RFQ with your target quantity, polymer/system and the fire test you must pass.
Disclaimer. Information on this page — including chemical properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim, or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information.