| Formula / Notation | H3BO3 |
|---|---|
| CAS Number | 10043-35-3 |
| Molecular Weight | 61.84 |
| Melting Point | 340 °F (NTP, 1992) |
| Boiling Point | 572 °F at 760 mmHg (decomposes) (NTP, 1992) |
| Density | 1.435 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | 10 to 50 mg/mL at 66 °F (NTP, 1992) |
| Appearance | Boric acid is an odorless white solid. Melting point 171 °C. Sinks and mixes with water. (USCG, 1999) |
| Also Known As | Orthoboric acid; 10043-35-3; Boracic acid; Borofax; Boron hydroxide; Boric acid (H3BO3); Boron trihydroxide; Basilit B; Three Elephant; Boric acid (BH3O3) |
| Category | Acids |
What is Boric acid?
Boric acid is a member of boric acids. It has a role as an astringent. It is a conjugate acid of a dihydrogenborate.
Formula & Notation
IUPAC Name: boric acid
Other Names / Synonyms: Orthoboric acid; 10043-35-3; Boracic acid; Borofax; Boron hydroxide; Boric acid (H3BO3); Boron trihydroxide; Basilit B; Three Elephant; Boric acid (BH3O3)
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 340 °F (NTP, 1992) |
| Boiling Point | 572 °F at 760 mmHg (decomposes) (NTP, 1992) |
| Density | 1.435 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Molecular Weight | 61.84 |
| Solubility | 10 to 50 mg/mL at 66 °F (NTP, 1992) |
| Appearance | Boric acid is an odorless white solid. Melting point 171 °C. Sinks and mixes with water. (USCG, 1999) |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Boric acid is a member of boric acids. It has a role as an astringent. It is a conjugate acid of a dihydrogenborate.
Used in industrial chemical synthesis, fertilizer production, battery electrolytes, metal processing, and laboratory acid-base reactions.
Corrosive. Causes severe burns to skin, eyes, and respiratory tract. Wear appropriate PPE including gloves, goggles, and lab coat. Consult SDS before use.
The formula or notation for Boric acid is: H3BO3