What is BCHP?
copper hydroxy-phosphate (BCHP)
BCHP (Copper hydroxy-phosphate) for Laser Marking Pigments and LDS/MID.
Technical owner: Aurexene Materials Engineering Team · Last updated: 2026-07-25
What It Is Not
- BCHP is basic copper hydroxy phosphate, not black carbon, carbon black, or an LDS/MID catalyst by default.
When Not to Use It
- Do not use BCHP when the required laser response mechanism, polymer compatibility, color, or process window has not been validated in the target resin.
Intrinsic Screening Summary
- Identity screen
- Cu2(OH)PO4; Green crystalline powder; orthorhombic copper hydroxyphosphate
- Intrinsic feature
- BCHP requires source-backed function review before public grade-level positioning. composition, form, processing route, and the linked application requirements.
Application Fit
Material Identity & Specification Status
Approved values for Purity and Packaging are not published; confirm them during quotation or sample review.
Available Grades
| Grade | Form | Typical use | Availability |
|---|---|---|---|
| Mo-Doped BCHP | Powder | Laser marking and LDS/MID projects that specifically require the Mo-doped BCHP grade | Request current grade availability |
| Property | Value |
|---|---|
| Composition | Cu2(OH)PO4 |
| CAS / identity | 12158-74-6 |
| Particle size | Fine powder; mean size often in sub-10 um range |
| Morphology | Green crystalline powder; orthorhombic copper hydroxyphosphate |
| Density | Approx. 3.6-4.0 g/cm3 true density; 0.4-0.6 g/cm3 loose bulk density |
| Storage | Dry sealed container |
Why It Works
| Structure | Function | Mechanism |
|---|---|---|
| Copper hydroxy-phosphate; Fine powder | BCHP requires source-backed function review before public grade-level positioning. composition, form, processing route, and the linked application requirements. |
Compare Material Routes
Technical Guides
| Technical Guide | Summary |
|---|---|
| 355 nm UV vs 1064 nm Fiber Laser for TPU Ear Tags | Candidate controls include copper hydroxy-phosphate (BCHP). |
| Alternatives to Iriotec 8208: Chemistry and Qualification Considerations | Candidate controls include copper hydroxy-phosphate (BCHP). |
| Antimony-Free 1064 nm Laser Marking of PP and PE | Candidate controls include copper hydroxy-phosphate (BCHP). |
| Balancing Laser Energy, Scan Speed, Layer Thickness, Conversion, and Thermal Damage | Balancing Laser Energy, Scan Speed, Layer Thickness, Conversion, and Thermal Damage — a method-conditioned engineering guide for LASER Curable Systems covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Barcode, Data Matrix and Human-Readable Code Quality on Livestock Ear Tags | Candidate controls include copper hydroxy-phosphate (BCHP). |
Documents & Inquiry
Document access follows the current approval state. Unapproved or unavailable files route to a document request instead of a public download.
Technical Data Sheet
Approved public file
Safety Data Sheet
Approval required
Related resources
Grade, Sample & Qualification Support
The Aurexene Materials Engineering Team can review the required form, host system, formulation or process, target, sample quantity, volume and timeline, and the grade-specific evidence needed before qualification.
Review Lab Capabilities for sample evaluation and qualification support, or Production Capabilities for scale-up, quality, documentation, and supply support.
Request BCHP Sample / Qualification Review