Boric Acid
Buy Boric Acid Powder, Crystals and Granular in Lab and ACS Grade, Plus Ready to Use Solutions.
Buy boric acid online in the form and grade your work actually needs, with the price right on the page. Lab Grade Powder covers general industrial and research use. ACS Grade Crystals and ACS Grade Granular meet American Chemical Society purity standards for analytical methods. If you need it premixed, there's a 1 Molar Solution, a Saturated Solution and a 4% Solution, so nobody has to weigh out powder and dissolve it by hand.
Every product ships with its SDS and COA posted online, and sizes run from 500 mL bottles up to 50 lb containers on the solid grades. Boric acid is classified as a reproductive toxicity hazard, so it needs real respect before you order: it ships to businesses, labs and schools rather than residential addresses, and it's worth reading the full safety guidance linked below before anyone on your team handles it regularly.
256,000+
customers served
99.5%
of orders ship in 1–2 business days
98.9%
inventory accuracy
SDS + COA
available online, every product
Also Known As Hydrogen Borate
About Boric Acid
Boric Acid, or more specifically Orthoboric Acid, is a compound with three hydroxyl groups connected to a boron atom. The molecule has trigonal planar geometry centered at the boron atom. It is an odorless, water-soluble white solid.
The mineral form, found in nature, is known as Sassolite, and has been used since ancient times for cleaning and preservation. Industrially, it is generally prepared by reacting Borax with Hydrochloric Acid. Since it cytotoxic, it is useful as an antiseptic, antifungal, and antiviral agent, although the exact mechanism of action is still poorly understood. These properties make Boric Acid useful for certain medical treatments, including yeast infection, cold sores, and athlete's foot. It is also used as an insecticide, a pH buffer in swimming pools, and a plant nutrient.
Common Uses and Applications
- Preservative
- Antiseptic, antiviral, antifungal agent
- Insecticide
- Fiberglass manufacture
- Silly Putty manufacture
- pH buffer
- Plant nutrient
Industries
About Boric Acid
H3BO3, also called orthoboric acid or hydrogen borate, three hydroxyl groups arranged around a single boron atom in a flat, trigonal shape. At room temperature it's an odorless, white crystalline solid, soluble in water, and it occurs naturally as the mineral sassolite, though what's sold commercially is produced industrially, usually by reacting borax with an acid like hydrochloric acid rather than mined. It's a weak acid chemically, but don't mistake weak for harmless. Boric acid's SDS classifies it as a Category 1B reproductive toxicity hazard, meaning repeated or significant exposure is a real concern, not a minor one, so handling it with gloves, good ventilation and proper storage matters regardless of how mild it seems on paper.
COMMON APPLICATIONS
Buffer and reagent use in analytical chemistry and research labs. Flame retardant and heat resistance additive in fiberglass, glass and ceramic manufacturing. Micronutrient fertilizer supplying boron to crops in agriculture. Preservative and pH buffer in a range of industrial formulations. An active ingredient in EPA registered pest control products, where it's formulated and diluted specifically for that purpose, not sold as raw powder for DIY use. And a component in certain over the counter and compounded pharmaceutical products, which are manufactured, tested and labeled separately from the laboratory and industrial grade material sold here.
GRADES EXPLAINED
Lab Grade is solid, everyday purity with no official monograph, the practical choice for general research, industrial and formulation work. ACS Grade meets American Chemical Society limits on impurities, the one to reach for when a method names ACS or trace purity actually matters. The premixed solutions, 1 Molar, saturated and 4%, are Reagent Grade, built for specific concentrations without requiring you to dissolve solid boric acid yourself.
TYPES & GRADES AT A GLANCE
Mesh size 100, for general research, formulation and industrial use.
Tested to ACS limits for analytical methods and trace purity work.
A standardized concentration ready for titrations and buffer prep.
Premixed dilutions for general lab and formulation use.
Premixed dilutions for general lab and formulation use.
WHY BUY FROM LAB ALLEY
256,000+ customers already order their acids and chemicals from Lab Alley. 99.5% of orders ship within 1 to 2 business days, and 98.9% inventory accuracy means the grade you see in stock is the grade that ships. SDS and COA are available online for every boric acid product. None of the boric acid products on this page carry Kosher, Halal or food grade certification.
Related: See our Citric Acid collection, or browse all Acids.
Frequently Asked Questions
Where can I buy boric acid online?
Right here. We carry boric acid as powder, crystals and granular in Lab and ACS grade, plus 1 Molar, saturated and 4% premixed solutions. Pick the form and grade, check the price, and order with no quote needed for standard sizes. Most in stock orders ship within 1 to 2 business days.
Is boric acid dangerous to handle?
It deserves real caution. Boric acid's SDS classifies it as a Category 1B reproductive toxicity hazard, which is a serious classification, not a minor caveat. It's also harmful if swallowed in quantity; surprisingly small amounts can be dangerous to children and pets, so it should always be stored securely and kept well out of reach. Wear gloves, avoid generating dust, and read the full SDS before handling it regularly, especially in concentrated or solid form.
Lab Grade vs ACS Grade, what's the difference?
Purity and testing. Lab Grade is solid, everyday purity without an official standard, a sensible choice for general research, formulation and industrial use. ACS Grade is tested against American Chemical Society limits on impurities, and it's the one to buy when a method specifically calls for ACS, or when trace level purity genuinely matters for your results.
Is any of your boric acid Kosher, Halal or food grade?
No. None of the boric acid products on this page carry Kosher, Halal or food grade certification. They're sold for laboratory, research and industrial use. Each product does have an SDS and lot specific COA on its page, so you can confirm the exact specs before ordering.
Do I need a permit, and can boric acid ship to a home address?
No purchase permit is required. Like the rest of our chemical catalog, boric acid ships to business, lab and school addresses rather than residential ones. Each product page lists its specific shipping details, and Customer Care at 512-668-9918 can confirm before you order if you're unsure your address qualifies.
What's the difference between boric acid and borax?
They're related but not the same thing. Borax is sodium borate, a salt, while boric acid is the acid form, and industrially boric acid is actually made by reacting borax with another acid. Borax is more alkaline and is commonly used in cleaning and laundry products, while boric acid is the form more often used in buffers, pest control formulations and industrial applications that call for acid chemistry specifically. They are not interchangeable in every recipe or formulation.
Which grade should I buy?
Match it to the job. General research, industrial processing or formulation work: Lab Grade powder. A method that names ACS, or analytical work where trace purity matters: ACS Grade crystals or granular. Need a specific concentration for buffer prep or titrations: one of the premixed solutions, 1 Molar, saturated or 4%, rather than dissolving powder yourself.
Is boric acid the same thing used in pest control products?
Chemically related, but not the same finished product. EPA registered pesticide products containing boric acid are formulated at specific low concentrations and labeled for that exact use. The Lab and ACS grade boric acid sold here is a laboratory reagent, not a registered pesticide, and is not intended for direct pest application. Our Boric Acid Overview guide covers its full range of common uses.
How should boric acid be stored?
Keep it tightly sealed in its original container, in a cool, dry area, away from children and pets given its toxicity profile. It's hygroscopic, meaning it absorbs moisture from the air, so an open container can clump or degrade over time. Our How to Store Boric Acid guide covers temperature, humidity and container choice in detail, and our Boric Acid Shelf Life article explains how long it lasts under proper conditions.
Guides & Resources
Boric Acid Overview
Learn about boric acid's chemical properties, industrial and household uses, safety handling tips, and available grades. Buy high-purity boric acid from Lab Alley.
Read article →Types of Boric Acid
Types of Boric AcidBoric acid is a widely used compound valued for its antiseptic, preservative, buffering, and flame-retardant properties. From ph...
Read article →Boric Acid Uses and Applications
Explore boric acid uses across industrial, pharmaceutical, agricultural, lab, and household applications. Shop high-purity boric acid at Lab Alley.
Read article →How to Store Boric Acid
How to Store Boric AcidBoric acid is a stable, non-flammable compound commonly used in laboratories, manufacturing, agriculture, and pest control. ...
Read article →Boric Acid Safety & Hazards
Boric acid (H₃BO₃) is widely used across industrial, agricultural, and consumer applications due to its versatility and relatively low toxicity...
Read article → Industries That Use Boric Acid
R&D/Laboratory
Explore ACS, HPLC and LC/MS grade chemicals for R&D and laboratory use including solvents, acids, bases, buffers and standardized solutions for research and QC.
Learn more →Pharmaceuticals & Nutraceuticals
Explore USP and NF grade chemicals for pharma and nutraceuticals including solvents, excipients, propylene glycol, glycerin and HPLC reagents.
Learn more →Manufacturing & Industrial
Explore chemicals for manufacturing and industrial use including ACS grade solvents, acids, alkalis, glycols and water treatment chemicals available in bulk sizes.
Learn more →Education
Explore chemicals for K–12 and university labs including dilute acids, bases, ACS solvents, biology reagents and indicators for classroom and research use.
Learn more → If you are purchasing SDA in 5 gallons or more, you are required to provide a TTB permit showing how much of the product you are allowed to purchase per year. Please email your TTB permit to
customercare@laballey and include your Order Number.
