Hydrolytically stable
Better resistance to heat and humidity aging than RDP.
BDP
Bisphenol A Bis(diphenyl phosphate) (BDP) Supplier from China
Bisphenol A bis(diphenyl phosphate) (BDP) is a halogen-free liquid phosphate flame retardant for PC/ABS, PPE/HIPS and other engineering plastics, valued for its hydrolytic and thermal stability. SUNCHEM supplies BDP with a batch COA on every shipment; the TDS is sent on request.
CAS 181028-79-5 · Oligomeric aryl phosphate · Halogen-free
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
BDP is an oligomeric aryl phosphate with about 8.9% phosphorus. Like RDP it promotes char and plasticizes the melt, but its bisphenol A backbone gives better hydrolytic stability and lower volatility, so parts keep their properties after heat and humidity aging. It is used in PC/ABS and PPE/HIPS housings for electronics, chargers and office equipment.
BDP is sold under CAS 181028-79-5 and also 5945-33-5; tell us which your documents require. Acid value, TPP content and viscosity are the numbers to compare.
Halogen-free V-0
Gives PC/ABS and PPE/HIPS UL 94 V-0 without bromine or chlorine.
Specified on your terms
We quote against your phosphorus content, acid value, TPP content, viscosity and water and send the batch COA for each lot.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product name | Bisphenol A Bis(diphenyl phosphate) |
| Synonyms | BDP; BPADP; bisphenol A diphosphate |
| CAS No. | 181028-79-5; 5945-33-5 |
| Type | Oligomeric aryl phosphate ester |
| Appearance | Colorless to pale yellow viscous liquid |
Phosphorus content, acid value, TPP content, viscosity and water limits depend on the producer grade and are stated on the TDS and batch COA; the limits for your order are confirmed in the quotation and contract.
Applications by Polymer
Where BDP is used, and what to confirm before you switch supply.
PC/ABS housings
Halogen-free flame retardant for PC/ABS housings that must pass heat and humidity aging.
Check before trial
- UL 94 class and thickness
- Acid value and TPP content
- Monthly volume
PPE/HIPS (mPPO)
Used in PPE/HIPS blends for electrical parts.
Check before trial
- Processing temperature
- Viscosity for your dosing
- Drum or IBC
PC and other resins
Used in PC and other resins where low volatility matters.
Check before trial
- Polymer and rating
- Aging requirements
- Sample for trials
Selection & comparison
Choosing the right BDP grade
| Your requirement | What usually works |
|---|---|
| Parts exposed to heat and humidity | BDP |
| Lowest dosage for V-0 | Compare with RDP |
| Liquid dosing in compounding | Agree viscosity and container |
| Replacing an existing supplier | Send your current TDS or COA; we quote against the parameters you approve |
Packaging & storage
Packaging
Drums or IBC; tell us which suits your dosing system.
Storage
Keep containers closed in a dry store at room temperature; warm before pumping if it has thickened in the cold.
From first email to approved supply
Name the end use
Name the polymer and the fire rating you must meet — UL 94 class and thickness, LOI or cable standard.
Compare the numbers that matter
Phosphorus content, acid value, TPP content, viscosity and water.
Check viscosity handling
BDP is viscous; confirm heated lines or drum warming for your dosing pump.
Trial, then lock the spec
Compound a trial batch, run your fire and mechanical tests, and keep the approved lot COA as the reference.
Tell us your requirement. We match the grade.
Tell us the polymer, the fire rating you need, the quantity and the destination port. Add your current specification and we will quote against it.
| Information | Example |
|---|---|
| Application | PC/ABS, PPE/HIPS, PC |
| Required specification | Acid value, TPP content, viscosity |
| Packaging | Bag or drum size; pallets |
| Quantity | Sample / trial order / annual volume |
| Destination | Country and port |
| Documents needed | COA, SDS, TDS, RoHS/REACH |
Related products
Resorcinol Bis(diphenyl phosphate)
Halogen-free liquid phosphate for PC/ABS and PPE/HIPS.
View product →Decabromodiphenyl Ethane
High-bromine additive flame retardant for styrenics, polyolefins and engineering plastics.
View product →Bisphenol A Bis(diphenyl phosphate) (BDP) FAQ
What is BDP used for?
As a halogen-free flame retardant for PC/ABS and PPE/HIPS, and in PC and other resins.
What is the difference between BDP and RDP?
BDP has better hydrolytic and thermal stability and lower volatility; RDP has more phosphorus and needs a lower dosage.
Which CAS number applies?
BDP is sold under CAS 181028-79-5 and 5945-33-5; tell us which your documents require.
Can I get the TDS?
Yes. Send an inquiry with your polymer and target rating and we email the TDS.
