Anhydrous Monohydrate Trihydrate Zinc borate CAS 1332-07-6

Synonyms：Zinc Borate Hydrate
Formula:B2O6Zn3
Weight:313.79
HS Code:284020000
Grade:Anhydrous，Monohydrate，Trihydrate，3.5‑hydrate
Hazard Class:Class 9

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Model:
1332-07-6
Brand:
futurechem
Code:
1332-07-6

Product Description

Certificate of Analysis-COA

Item	Grade:Zincborate2335-400 （2ZnO·3B₂O₃·3.5H₂O）Excellentgrade
Whiteness ≥	95
Surface water, % ≤	0.5
Particle size, D50 μm	3.0–5.0
ZnO, %	36.5–39.5
B₂O₃, %	46.0–49.0
Ignition Losses, %	13.0–15.5
Fineness (Residue on 325 mesh sieve), % ≤	0.5
Pb, ppm ≤	20
Cd, ppm ≤	10
Fe, ppm ≤	30
Molecular weight	434.62
Melting point, ℃	980
Electrical conductivity, μS/cm ≤	2000
CAS	138265-88-0

Applications

1. Wire And Cable Sheathing acts as a flame retardant, smoke suppressant and anti tracking agent in PVC and halogen free sheathing compounds, helping compounds hold flame spread and smoke density inside the limits set by cable fire tests.

2. Flexible PVC And Plastisols takes over part of the antimony trioxide load in flexible, semi rigid and filled PVC without harming tensile strength, elongation or thermal aging, which helps compounders rebalance cost against smoke performance.

3. Halogen Free Systems With Mineral Hydroxides boosts alumina trihydrate and magnesium hydroxide packages so less total additive is needed, improving fire performance and melt rheology at the high loadings those systems normally require.

4. Intumescent Coatings And Wood Composites reinforces char formation and the protective glassy layer in fire retardant paints and panels, slowing flame spread over wood, and it also brings corrosion resistance and UV protection to the same coating film.

5. Engineering Plastics keeps its water of hydration through typical compounding temperatures and stays effective above 250 C, which suits nylon, PBT, PET, epoxy and silicone rubber processed hotter than mineral hydroxide systems allow.

6. Wood Composites And Cellulosic Treatment carries antimicrobial and fungal protection alongside fire retardancy, so preserved wood panels and cellulose based materials can be treated for both risks with one additive.

Production Line

We operate 10+ production lines, backed by a well-stocked raw material warehouse.

Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.

Every order follows a standardized workflow. Key quality control points are set at every stage.

Factory Area

Standardized Process Flow

Production Capacity

Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.

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Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

Send the water analysis, the system type and the operating conditions. Our sales team replies with the product selection, dosing recommendation and commercial details.

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