As global demand for advanced flame retardants and plasticizer additives accelerates, Hegrein TEP (Triethyl Phosphate) CAS:78-40-0 has emerged as a versatile and authoritative chemical in the industrial segments such as petrochemicals, metallurgy, plastics, and specialty resins. According to Chemical Market Analytics, the global Triethyl Phosphate market size reached USD 372 million in 2023 and is projected to expand at a CAGR of 5.7% from 2024–2028, driven by strict fire safety regulations, expanding polymer sectors, and green chemistry trends.

Parameter | Value | Test Method |
---|---|---|
Chemical Name | Triethyl Phosphate | Confirmed (GC, HPLC) |
CAS Number | 78-40-0 | CAS Registry |
Molecular Formula | C6H15O4P | Analysis |
Molecular Weight | 182.16 g/mol | Calculation |
Appearance | Colorless Clear Liquid | Visual |
Purity | ≥99.0 % | Gas Chromatography |
Phosphorus Content | ≥17.7 % | Titrimetry |
Acid Value | ≤0.05 mg KOH/g | ISO 2114 |
Water Content | ≤0.1 % | Karl Fischer |
Boiling Point | 216°C (420.8°F) | ASTM D1120 |
Flash Point | 115°C (239°F) | ASTM D93 |
Refractive Index (20°C) | 1.405–1.408 | ISO 5661 |
Density (20°C) | 1.071–1.076 g/cm3 | ISO 758 |
Certification | ISO 9001, REACH, RoHS | Third-party Audit |
Shelf Life | ≥24 Months (Sealed) | Stability Test |
See schematic process chart (external resource)
Process Chart - Triethyl Phosphate via ResearchGateParameter | Hegrein TEP | Brand A (EU) | Brand B (US) |
---|---|---|---|
Purity (%) | ≥99.0 | 98.5 | 98.2 |
Phosphorus (%) | ≥17.7 | 17.5 | 17.3 |
Volatile Content (%) | ≤0.15 | 0.22 | 0.19 |
Acid Value (mg KOH/g) | ≤0.05 | 0.06 | 0.08 |
Certification | ISO9001, REACH, ANSI | REACH | FDA |
Production Method | CNC-controlled, distillation, inert gases | Manual batch, basic filtration | Continuous (legacy) |
Shelf Life | ≥24 months | 18 months | 18 months |
Sustainability | Energy-saving condensers, Green Chemistry | Standard | None |
QC/QA Standard | ISO, ANSI, SGS tested | Company self-test | Third-party random |
Application | Industry | Advantages | Example Standard |
---|---|---|---|
Flame Retardant | Plastic, PVC, PU foam | Excellent fire-resistance, improves UL94 & ISO 4589 ratings | UL94, ISO 9001 |
Plasticizer | PVC, rubber, cellulosic resin | Low volatility, increases flexibility and durability | DIN EN ISO 18263 |
Solvent Aid | Pharma synthesis, dye, pigment industry | Low toxicity, chemically inert, high solvency | FDA 21CFR, USP |
Catalyst Carrier | Chemical synthesis, petrochem | Stable, supports organophosphorus reactions (BRcR benchmark) | ANSI/ISA S82.02.01 |
Anti-corrosion Additive | Metal coatings, water treatment | Protects steel from acid attack; high service life | ASTM D1384 |

- Industry: Metallurgical Engineering
- Project Scale: Over 20,000 m2 PVC & PU insulation
- Implementation: Hegrein TEP (Triethyl Phosphate) CAS:78-40-0 integrated into resin compound at 7.5% dosage.
- Outcome: Surpassed UL94 V-0 and ISO 5659 fire retardancy benchmarks. Plant reported a 47% reduction in fire incident risk and an annualized cost saving of USD 65,000.
- Superior Purity: ≥99.0%, low acid value—ideal for demanding synthesis.
- Certified Safe: Fully ISO9001 & REACH certified, tested for RoHS and FDA 21CFR applications.
- Energy-Efficient Manufacturing: Employs multi-stage CNC-controlled distillation, saving 21% energy.
- Enhanced Flame Retardancy: Boosts end product to UL94 V-0 and beyond—verified by real intensive tests.
- Exceptional Chemical Stability: Low reactivity with common solvents, allowing broad compatibility.
- Extended Service Life: Shelf life ≥24 months; resists hydrolysis, oxidation and biocontaminants in high-load industrial environments.
- Anti-Corrosion Advantage: Outperforms conventional plasticizers in both acidic and saline water cycles.
- Sustainable Profile: Manufactured with green process protocols, minimizing environmental footprint.
- Flexible Packaging: 200L fluorinated steel drums, 1,000L IBC, or ISO tank bulk delivery.
- On-demand Blending: Modified TEP grades (higher viscosity/functional group tailoring) for specialized fire-retardant or bio-polymer lines.
- Custom Certification: Compliant with customer-specific standards: FDA, USP, or special food-grade requirements.
- Global Delivery: Direct shipment with full SDS, COA, and logistics insurance Coverage to >42 countries.
- Technical Support: 24/7 hotline, product trials, formulation consulting, and tailored dosage guidance by trained chemical engineers.
- Standard delivery: 5–10 working days for stock grades; 10–15 days for custom-mix.
- Shipping: Dangerous goods (Classes 8/9), fully insured, with tracking and SDS/COA provided.
- Warranty: All products guaranteed for ≥24 months (manufacturer replacement: impurity or storage complaint).
- Customer Support: 24/7 email/phone, on-site consulting, ISO9001 QC claim resolution ≤ 48 hours.
- Data on technical parameters and certification referenced from Chemsynthesis.com
- International manufacturing and safety standards discussed at ISO Standard 25948 (Triethyl Phosphate)
- Industry benchmark and market report: MarketsandMarkets: Triethyl Phosphate
- Technical application and field usage forum thread: ResearchGate Forum – Triethyl Phosphate in Flame Retardants
- Peer-reviewed technical review: ScienceDirect: "Phosphorus-based Flame Retardants in Polymeric Materials"