Industrial chemicals · Taylor, TXTechnical Data Sheet
Boric Acid Technical Grade
Technical
- CAS number
- 10043-35-3
- Structure
Structure · PubChem - Grade
- Technical
- Signal word
- Danger
- Hazards
Identity & Composition
- Product Name
- Boric Acid Technical Grade
- Alliance Code
- boric-acid
- Grade
- Technical
- Concentration
- —
- CAS Number
- 10043-35-3PubChem
- Formula
- H3BO3Adjudicated
- Molecular Weight
- 61.83 g/molAdjudicated
- Product Type
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (H3BO3) | 99.90% min. | 99.94 % | — | Interpreted |
| Boric oxide (B2O3) | 56.00% min. | 56.27 % | — | Interpreted |
| Equivalent H3BO3 (alternate technical-grade limit, U.S. Borax Optibor TG) | 99.9-100.9 | 100.4 | U.S. Borax analytical methods | Interpreted |
| Sieve, % retained on U.S. No. 20 (0.850 mm) — granular technical grade only | ≤2.0 | 0.6 % | — | Interpreted |
| Chloride (Cl) | 15 ppm max. | 3.0 ppm | — | Interpreted |
| Iron (Fe) | 10 ppm max. | 2.2 ppm | — | Interpreted |
| Sulfate (SO4) | 500 ppm max. | 130 ppm | — | Interpreted |
| Water insoluble matter | 0.010 % max. | 0.0023 % | Gravimetric — hot water dissolution, filtration through tared Gooch crucible | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | White fine crystalline powder, lightweight texture | Adjudicated |
| Form | Solid | Published reference |
| Odor | Odorless | Adjudicated |
| pH | 4.6–5.4 (1% aqueous solution, 25 °C) | Adjudicated |
| Specific Gravity | 1.44–1.49 at 20 °C (water = 1) | Adjudicated |
| Density | 0.85 - 1.00 g/cm3 | Interpreted |
| Boiling Point | Not applicable — decomposes before boiling | Adjudicated |
| Melting Point | 169–171 °C (336–340 °F), with decomposition | Adjudicated |
| Flash Point | Not applicable | Adjudicated |
| Vapor Pressure | Negligible at 20 °C | Adjudicated |
| Solubility (water) | Soluble in water (about 49 g/L at 20 °C, much more in hot water); soluble in methanol and glycerol | Adjudicated |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- Not regulatedAdjudicated
- Hazard Class
- Not regulatedAdjudicated
- Packing Group
- Not regulatedAdjudicated
- Proper Shipping Name
- Not regulatedAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H360FDECHA C&L Inventory
- P-Codes (Precautionary Statements)
- P201, P202, P280, P308+P313, P405, P501ECHA C&L Inventory
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- —no canonical
- ACGIH TLV
- 2 mg/m³ TWA; 6 mg/m³ STEL (inhalable fraction; borate compounds, inorganic)Adjudicated
- NIOSH REL
- 5 mg/m³ TWANIOSH Pocket Guide
- NIOSH IDLH
- —no canonical
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Oral (rat)
- 2,660 mg/kg (rat)Adjudicated
- LD₅₀ Dermal (rabbit)
- > 2,000 mg/kgAdjudicated
- LC₅₀ Inhalation (rat, 4 h)
- > 2.12 mg/L (dust, 4 h)Adjudicated
Acute toxicology values from SDS Section 11 or NIOSH RTECS.
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Boric Acid Technical Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Used in the production of agricultural products, flame-retardants, coatings, and metallurgyrosemill.com
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
Storage & Handling
- Recommended Storage
- Keep tightly closed in a dry, ventilated area away from bases and oxidizers. Store locked up and away from food and feed.Adjudicated
- Handling Precautions
- Use standard chemical PPE — splash goggles, gloves, lab coat. Refer to SDS for hazard-specific PPE requirements.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Strong bases; strong oxidizing agents; potassium and other alkali metals; acetic anhydride.Adjudicated
- Shelf Life
- Consult Technical Services for product-specific shelf life
For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.
Packaging & Logistics
Shipping Description (US DOT)
Not regulated for transport.
Confirm against shipping documents and carrier requirements before tender.
Revision History
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.3 | 2026-10-08 | Canonical data updated: 22 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-09-30 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-06-18 | Canonical data re-verified: 6 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable).
| canonical_change |
| 1.0 | 2026-05-20 | Initial URL-first TDS published from canonical chemistry registry. | initial |
This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.