Borax
Borax Manufacturer & Bulk Supplier for Industrial and Agricultural Applications
Refined Sodium Borate Grades with Controlled Boron (B2O3), Sodium (Na2O), and Hydration Profiles
Borax (Sodium Tetraborate) serves as a vital dual source of boron oxide and sodium oxide in high-volume chemical processing, glass manufacturing, ceramic glazes, metallurgical fluxes, and agricultural formulations. Depending on thermal processing and hydration state, Borax is supplied as Decahydrate, Pentahydrate, or Anhydrous Sodium Tetraborate.
Zouping Jinxing Chemical manufactures and exports industrial-grade and technical borates tailored to rigorous B2B quality standards. Rather than offering generic purity claims, we work directly with procurement officers and plant engineers to match assay ratios, particle size distributions (mesh range), and trace metal thresholds to your exact batch operations.
> Annual Production Capacity: 60,000+ MT | Exporting to 40+ International Markets | ISO 9001 & REACH Supported
Selecting the Right Borax Hydration State
|
Product Grade |
Chemical Formula & CAS |
Typical B₂O₃ Content |
Typical Na₂O Content |
Primary Operational Advantage |
|
Borax Decahydrate (10H₂O) |
Na₂B₄O₇·10H₂O (CAS 1303-96-4) |
~36.5% |
~16.2% |
Excellent solubility and mild buffering action for aqueous systems, detergents, and starch adhesives. |
|
Borax Pentahydrate (5H₂O) |
Na₂B₄O₇·5H₂O (CAS 12179-04-3) |
~48.0% |
~21.3% |
Higher boron concentration per metric ton. Lower transport cost per unit of active B₂O₃; resists caking. |
|
Anhydrous Borax (0H₂O) |
Na₂B₄O₇ (CAS 1330-43-4) |
~68.5% |
~30.5% |
Zero water of crystallization. Suitable for high-temperature refractory, fluxing, and glass-melt applications where additional crystal water is undesirable. |
Borax Technical Specifications Overview
|
Parameter |
Specification |
|
Product Name |
Sodium Tetraborate / Sodium Borate |
|
Available Forms |
White crystalline powder, granular, or fused anhydrous glass-like granules |
|
Assayed Purity |
Standard Technical Grade: 99.0%–99.9% equivalent |
|
B₂O₃ Contribution |
36.5% (Decahydrate) | 48.0% (Pentahydrate) | 68.5% (Anhydrous) |
|
Na₂O Contribution |
16.2% (Decahydrate) | 21.3% (Pentahydrate) | 30.5% (Anhydrous) |
|
Water-Insoluble Matter |
≤ 0.03% max.; down to ≤ 0.01% for high-purity glazes |
|
Chloride (Cl) |
Controlled per grade specification: ≤ 50–200 ppm |
|
Sulfate (SO₄) |
Controlled per grade specification: ≤ 100 ppm |
|
Iron (Fe) |
Controlled down to ≤ 10 ppm for optical glass and high-grade enamels |
|
Particle Sizing |
Granular: 12–50 mesh; Fine Powder: 80–200 mesh |
Note: Exact parameters must be confirmed against the lot-specific Certificate of Analysis (COA). Technical specifications can be customized for large-volume contract buyers.
Industrial & Agricultural Application Breakdown
Glass and Insulation Fiberglass
Borax acts as a fluxing agent and thermal stability enhancer in glass manufacturing. It lowers melting temperatures, reduces melt viscosity, and improves finished product chemical durability and optical clarity.
Ceramics, Enamels, and Frits
Provides B2O3 and Na2O to raw ceramic glazes, lowering thermal expansion coefficients and preventing glaze crazing or thermal shock failure.
Refractory and High-Temperature Processing
High-purity Anhydrous Borax is used as a binder and flux in high-temperature refractories, preventing thermal shock cracking caused by steam release from hydrated borates.
Metallurgical Fluxing & Welding
Dissolves metal oxides on molten metal surfaces, protecting welds and molten baths from atmospheric oxidation during casting, brazing, and refining.
Adhesives & Polymer Gelation
Cross-links hydroxyl groups in starch-, casein-, and dextrin-based adhesives, dramatically improving tack, green bond strength, and viscosity control.
Industrial Cleaning & Detergents
Acts as an alkaline buffer, water softener, and mild anti-microbial builder in institutional cleaning powders and industrial degreasers.
Agricultural Micronutrient Formulations
Serves as a primary boron source for soil amendments and custom fertilizer blends. Note: Agricultural applications must comply with local fertilizer registration standards.
Storage, Handling, and Caking Prevention
Storage Environment:
Store in a clean, dry, climate-stable warehouse.
Temperature Control:
Avoid exposing Decahydrate to dry temperatures above 35 deg C (95 deg F), which induces efflorescence (loss of crystal water).
Moisture Protection:
Protect pallets from direct ground moisture and humidity surges to prevent particle agglomeration and bag caking.
Packaging Sealing:
Keep inner plastic liners tightly tied when bags are partially used.
Quality Control & Export Compliance Documentation
Zouping Jinxing Chemical backs every shipment with complete technical verification:
Certificate of Analysis (COA):
Issued for every production lot with exact B2O3, Na2O, iron, and sieve retention testing.
01
Technical Data Sheet (TDS):
Complete physical characteristics and recommended processing baselines.
02
Safety Data Sheet (SDS):
Updated GHS-compliant documentation available for international shipping.
03
Logistics Documents:
Certificate of Origin (COO), ISO 9001 compliance sheets, and bill of lading documentation provided promptly upon dispatch.
04
Packaging Options & Global Logistics Performance
Standard Bags:
25 kg or 50 kg multi-wall paper/PE woven bags with inner moisture barriers.
01
Jumbo Bags:
1,000 kg or 1,200 kg heavy-duty FIBC bulk bags with bottom discharge spouts.
02
Container Loading:
20-22 MT per 20ft FCL (palletized); up to 25 MT (unpalletized).
03
Customization:
OEM private labeling, custom mark printing, and container liners available upon request.
04
MOQ & Lead Time:
Minimum Order Quantity starts at 1 FCL (20 MT). Standard orders dispatch within 10-14 business days.
05
Request a Borax Quotation or Technical Dossier
[Action Point: Click Here to Request Your Bulk Borax Quote & Technical Samples]
Provide your target hydration grade, application, particle size, packaging preference, and projected purchase volume.
If you have an existing supplier COA or specification sheet, upload or attach it with your inquiry for a direct technical and commercial match.
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