At a Glance
Material Family
Specialty Additives
Record Type
UVCB
Primary Role
Flame Retardancy · Biocidal Action
Functional Roles
Industries Served
Applications & Use Cases
- ▸ Used as a flame retardant and smoke suppressant in PVC, polyolefins, nylon, and epoxy compounds, where it forms a protective borosilicate char layer and releases water of hydration to cool the polymer.
- ▸ Acts as a synergist alongside antimony trioxide and aluminum trihydrate, allowing formulators to partially replace antimony in halogenated systems while improving afterglow suppression.
- ▸ Incorporated into intumescent and fire-retardant coatings and paints to reduce flame spread and char-form on wood and structural substrates.
- ▸ Added to flame-retardant elastomers, rubber, and wire-and-cable insulation as an anti-tracking and arc-suppression agent.
- ▸ Applied to wood-composite, textile, and cellulosic treatments for combined flame retardancy and anti-fungal / preservative function.
Physical Properties
appearance
white crystalline powder (typical)
odor
odorless (typical)
density
2.6-2.8 g/cm3 (typical)
bulk_density
0.3-0.5 g/cm3 (typical)
melting_point
approx. 980 C (typical, anhydrous)
dehydration_onset
approx. 290-300 C (hydrated grades, typical)
water_solubility
very low, < 0.3 g/100 mL (typical)
ph_aqueous_slurry
7-8 (typical)
median_particle_size
2-10 micron (typical, grade dependent)
Safety & Handling
Full SDS available on request
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.
Chemical Identity
CAS Number
1332-07-6
Molecular Formula
B2O6Zn3
Molecular Weight
313.8 g/mol
IUPAC Name
trizinc diborate
PubChem CID
InChI Key
BIKXLKXABVUSMH-UHFFFAOYSA-N
Synonyms & Trade Names
Related Products
Disclaimer. Information on this page — including 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/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased 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. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.