Specification :

We can supply below halogen-free flame retardants:

1. DOPO( HCA) CAS No: 35948-25-5
Chemical Name: 9, 10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Formula: C12H9O2P; MW: 216
Visual: White or off white flake; Melting point: 116-120C
Assay( HPLC) : 98.0% min.
Application: Widely used as flame retardant in linear polyester, polyamide, polyurethane, epoxy, and electronic plastic, copper liner, PCB, etc., and also reactive retardant.

2. DOPO-HQ( ODOPB, HCA-HQ) CAS# : 99208-50-1
Chemical name: 10-( 2, 5-Dihydroxyphenyl) -10H-9-oxa-10-phospha-phenantbrene-10-oxide
Formula: C18H13O4P; MW: 324
Visual: White powder or off-white flake
Assay: Over 98% ( HPLC) ; Melting point: 245-255C
Application: Widely used as flame retardant in sealing of semiconductor materials, PCB, LED lighting tube, etc., and also recative retardant.

3. DDP CAS No.: 63562-33-4
Chemical Name: [ ( 6-Oxido-6H-dibenz[ c, e] [ 1, 2] oxaphosphorin-6-yl) methyl] butanedioic acid
Formula: C17H15O6P; Molecule weight: 346
Visual: White powder or off-white flake Assay: Over 98% ( HPLC) ; Melting point: 191-192C
Application: Widely used as flame retardant for halogen-free polymerization of polyester.

More details, samples and customization also available.