Agriculture
Magnesium Sulfate
Source of soluble magnesium and sulfur for fertilizers, with uses in pharmaceuticals and textiles.
Applications
- Fertilizers & soil conditioning
- Pharmaceutical formulation
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Industrial Chemicals
Boric Acid
H3BO3
Boron compound used in glass, ceramics, micronutrient fertilizers and specialty formulations.
- Chemical name
- Boric acid
- CAS number
- 10043-35-3
- Also known as
- Orthoboric acid, Boracic acid
Product overview
Boric acid is a weak acid and a common source of boron for industrial and agricultural use.
It is used in glass fiber, borosilicate glass, ceramic glazes and enamels, as a boron micronutrient in fertilizers, in flame-retardant formulations and in certain pharmaceutical and specialty preparations. Regulatory requirements for boron compounds vary by market, so please share your destination and end use.
Applications
Typical uses for this chemical. Suitability for a specific process, and grade requirements for food, pharmaceutical or potable-water use, should be confirmed with our team.
Technical information
| Chemical name | Boric acid |
|---|---|
| Formula | H3BO3 |
| CAS number | 10043-35-3 |
| Molecular weight | 61.83 g/mol |
| HS code | 2810.00 |
| Transport classification | Not regulated for transport |
| Appearance | White, odourless crystalline granules or powder; mildly acidic in solution |
| Forms | Granular · Powder · Extra-fine / special powder |
| Grades | Technical grade (H3BO3 ≥ 99.5-99.9%) · Normal, low- and ultra-low-sulphate grades · NF / EP pharmaceutical and cosmetic grades · Battery quality (BQ) |
| Packaging | 25 kg / 50 lb bags · Fiber drums · Bulk sacks / IBCs · Bulk |
Identifiers and classifications are standard reference data for the substance. Forms, grades and packaging reflect what is commonly traded internationally; availability for your order is confirmed in the quotation.
Typical specifications
Typical values for commonly traded grades of Boric Acid, based on international standards and published manufacturer data.
High-purity technical ≥99.9% (typical)
| Parameter | Typical value |
|---|---|
| B2O3 | ≥ 56.0% |
| H3BO3 (equivalent) | ≥ 99.9% |
| Sulphate (SO4) | ≤ 300-500 ppm |
| Chloride (Cl) | ≤ 5-15 ppm |
| Iron (Fe) | ≤ 4-10 ppm |
| pH (20 °C) | 5.1 (1% solution); 3.7 (saturated, ≈ 4.7%) |
| Solubility in water | 4.72% at 20 °C; 27.53% at 100 °C |
| Bulk density | ≈ 881 kg/m3; granular 800-1,000 / powder 500-700 kg/m3 |
Standard technical 99.5% (typical)
| Parameter | Typical value |
|---|---|
| H3BO3 | 99.5% (typical) |
| B2O3 | ≈ 56% |
| Sulphate (as SO4) | 0.15-0.25% |
| Chloride (as Cl) | 0.05-0.15% |
| Iron (as Fe) | 0.0002% |
| Heavy metals (as Pb) | 0.0002% |
| Arsenic (as As) | 0.0001% |
Reference standards:GB/T 538-2018 Boric acid for industrial use (China)USP-NF Boric AcidPh. Eur. Boric acid
Classified in the EU as toxic for reproduction (Repr. 1B) and listed as a REACH SVHC — buyers should check destination-market rules for their application.
Typical values are for guidance. The specification for your order depends on grade and origin and is confirmed in the quotation, Technical Data Sheet and Certificate of Analysis.
Packaging
- 25 kg / 50 lb bags
- Fiber drums
- Bulk sacks / IBCs
- Bulk
Packaging commonly used for export shipments of this product. Availability depends on grade and origin and is confirmed per order.
Packaging confirmed per order
Tell us your preferred packaging and handling requirements — we'll confirm available options for your grade, volume and destination.
Industries
Documentation
Request the documents you need to evaluate Boric Acid. We send documents that match the grade being quoted.
- TDS
Technical Data Sheets
Product specifications and technical information.
- SDS
Safety Data Sheets
Safety and handling documentation where available.
- COA
Certificate of Analysis
Batch-specific documentation where applicable.
Request a Quote
Get a quotation for Boric Acid
Share your quantity and destination — our export team will confirm grade, packaging and pricing.
Frequently asked questions
What grades of Boric Acid are available?
Boric Acid is commonly traded as Technical grade (H3BO3 ≥ 99.5-99.9%); Normal, low- and ultra-low-sulphate grades; NF / EP pharmaceutical and cosmetic grades; Battery quality (BQ). Availability varies by origin and destination market — share the grade, purity or standard you require and we will confirm what can be supplied, with the current specification.
What is the HS code for Boric Acid?
Boric Acid is usually classified under HS 2810.00. National tariff codes add further digits and can differ by form and country, so confirm the full code with your customs broker before shipment.
Is Boric Acid a dangerous good for shipping?
Boric Acid is generally not regulated as a dangerous good for road, sea or air transport. The Safety Data Sheet for the grade shipped is the reference used when booking freight.
Which standards apply to Boric Acid?
Commonly referenced standards include GB/T 538-2018 Boric acid for industrial use, USP-NF Boric Acid, Ph. Eur. Boric acid. Tell us which standard your application or market requires and we will confirm a grade that meets it.
How is Boric Acid packed for export?
Common export packaging for Boric Acid includes 25 kg / 50 lb bags; Fiber drums; Bulk sacks / IBCs; Bulk. Tell us your preferred packaging and we will confirm what is available for your grade and volume.
Can I get the TDS, SDS or COA for Boric Acid?
Yes — request them on this page. We send the documents that apply to the specific grade you are evaluating; a Certificate of Analysis is batch-specific and issued where applicable.
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