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(H3BO3)≥ | 98% | 99.5% | 99.9% | ||||||
Color | White | White | White | White | White | ||||
Appearance | Granular | Powder | Granular | Powder | Powder | ||||
Size | 2-4 mm | 60-80 mesh | 2-4 mm | 60-80 mesh | 60-80 mesh | ||||
B (%) ≥ | 17±0.1 | 17±0.1 | 17.5±0.1 | 17.5±0.1 | 17.6±0.1 | ||||
B2O3 (%) ≥ | 55.2±0.1 | 55.2±0.1 | 56.1±0.1 | 56.1±0.1 | 56.3±0.1 | ||||
SO42- (%)≤ | 0.035 | 0.0005 | 0.0002 | ||||||
Cl- (%)≤ | 0.0018 | 0.0001 | 0.0001 | ||||||
Fe (%) ≤ | 0.0006 | 0.0002 | 0.0001 | ||||||
Heavy metals (Pb) % ≤ | 0.0008 | 0.0002 | 0.0001 | ||||||
Water insoluble (%) ≤ | 0.01 | 0.005 | 0.001 | ||||||
Packing | 25kg, 50kg,1000kg plastic-lined plastic woven bags | ||||||||
Use | 1. Boron fertilizer 2. Preservatives 3. Glass/Ceramics industry material 4. Ramming mass | ||||||||
Packaging Detail | 0.5kgs/Al-foil bag 1.0kgs/Al-foil bag 2.0kgs/Al-foil bag 5.0 kgs/Al-foil bag 25.0 kgs/drum or upon customers' request. |
Storage | Store in a well-closed container away from moisture |
Shelf Life | 2 years if sealed and store away from direct sun light. |
Delivery Detail | within 3 days after get the payment |


Q1: How to contact with us?
Click the Alibaba "Contact Supplier", send us message, you will get reply within 24 hours.
Q2:Which kind of payment terms do you accept?
For small order,you can pay on Alibaba by trade assurance.
For bulk order, you can pay to our company's bank account.
Q3:How can i get a sample?
You can talk to us, we normally send sample by FEDEX, DHL,EMS.
You need to pay for the shipping cost.
Q4: How to confirm the Product Quality before placing orders?
You can get some sample, or we can send certificate of analysi or HPLC or NMR to you.
Q5:How can I make payment safe?
The whole transaction is under Alibaba's (Third party) inspection.
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