ContaminantDB: Boric acid (H3BO3)

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References Targets (29)XML

Record Information

Version

1.0

Creation Date

2013-04-25 07:56:50 UTC

Update Date

2026-05-14 19:08:43 UTC

Accession Number

CHEM002760

Identification

Common Name

Boric acid (H3BO3)

Class

Small Molecule

Description

Boric acid (H3BO3) belongs to the miscellaneous metallic oxoanionic compounds, a subclass of miscellaneous mixed metal/non-metals within the inorganic compounds. This exogenous compound has the chemical formula BH3O3 and an average molecular weight of 61.83 g/mol. At room temperature, it exists as a solid. The compound serves various industrial roles, including use as a pH regulating agent, biocide, stabilizing agent, flame retardant, binder, lubricating agent, stabilizer (PMC11396345), and catalyst (PMC10426397). It is also used as an astringent. Boric acid is found in or released from 55 recorded sources, including electrical and electronic equipment such as antennas, coils, and communication cables; household cleaning and consumer products like bleaching agents and perfumes within detergents and soaps; building and construction materials including ceilings, floors, and roofs; healthcare, pharmaceuticals, and veterinary products such as antiinfectives; and household items like coins. It is also associated with food, food processing, and cookware, including food contact materials, food preservation, and fermentation processes for beer. Recorded exposure routes include cutaneous, infiltration, inhalation, nasal, ophthalmic, oral, rectal, topical, touch, and vaginal, with inhalation supported by literature (PMC12735847). Boric acid has four recorded protein targets: C-C motif chemokine 2 (CCL2), ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1 (CD38), epidermal growth factor receptor (EGFR), and interleukin-8 (CXCL8). Regarding health effects, it has a therapeutic effect on colon cancer (PMC10351539).

Contaminant Sources

EAFUS Chemicals
ECHA Toxic for reproduction
FooDB Chemicals
HPV EPA Chemicals
OECD HPV Chemicals
T3DB toxins
ToxCast & Tox21 Chemicals

Contaminant Type

Food Toxin
Household Toxin
Inorganic Compound
Insecticide
Metabolite
Synthetic Compound

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
[b(OH)3]	ChEBI
b(OH)3	ChEBI
Boron trihydroxide	ChEBI
H3BO3	ChEBI
Orthoboric acid	ChEBI
Orthobate	Generator
Orthobic acid	Generator
bate (H3BO3)	Generator
bic acid (H3BO3)	Generator
bate	Generator, HMDB
bic acid	Generator, HMDB
(10b)Orthoboric acid	HMDB
1332-77-0 (Di-potassium salt)	HMDB
Acidum boricum	HMDB
Ant flip	HMDB
Basilit b	HMDB
Bluboro	HMDB
Boracic acid	HMDB
Borate	HMDB
Borate (b4O7(2-))	HMDB
boric acid (BH3O3)	HMDB
boric acid (H310BO3)	HMDB
boric acid (JP15/nf)	HMDB
boric acid, Acs	HMDB
Borofax	HMDB
Boron hydroxide	HMDB
Collyrium eye wash	HMDB
Dr.'S 1 flea terminator DF	HMDB
Dr.'S 1 flea terminator dfpbo	HMDB
Dr.'S 1 flea terminator DT	HMDB
Dr.'S 1 flea terminator dtpbo	HMDB
Flea prufe	HMDB
Heptaoxotetra-borate(2-)	HMDB
Homberg'S salt	HMDB
Hydrogen orthoborate	HMDB
Kill-OFF	HMDB
Kjel-sorb	HMDB
Orthboric acid	HMDB
Orthoboric acid (b(OH)3)	HMDB
Orthoboric acid (H3bo3)	HMDB
Super flea eliminator	HMDB
Tetraborate	HMDB
Three elephant	HMDB
Trihydroxidoboron	HMDB
Trihydroxyborane	HMDB
Trihydroxyborone	HMDB
Boron oxide hydroxide	MeSH

Chemical Formula

BH₃O₃

Average Molecular Mass

61.833 g/mol

Monoisotopic Mass

62.018 g/mol

CAS Registry Number

10043-35-3

IUPAC Name

boric acid

Traditional Name

boric acid

SMILES

OB(O)O

InChI Identifier

InChI=1S/BH3O3/c2-1(3)4/h2-4H

InChI Key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of inorganic compounds known as miscellaneous borates. These are inorganic compounds in which the largest metallic oxoanion is borate, to which either no atom or a non metal atom is bonded.

Kingdom

Inorganic compounds

Super Class

Mixed metal/non-metal compounds

Class

Miscellaneous mixed metal/non-metals

Sub Class

Miscellaneous metallic oxoanionic compounds

Direct Parent

Miscellaneous borates

Alternative Parents

Substituents

Borate
Inorganic salt
Inorganic metalloid salt

Molecular Framework

Not Available

External Descriptors

boric acids (CHEBI:33118 )
an anion (BORATE )

Biological Properties

Status

Detected and Not Quantified

Origin

Exogenous

Cellular Locations

Cytoplasm
Extracellular

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

astringent

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Solid

Appearance

White powder.

Experimental Properties

Property	Value
Melting Point	171°C
Boiling Point	Not Available
Solubility	50 mg/mL at 25°C

Predicted Properties

Property	Value	Source
logP	-0.51	ChemAxon
pKa (Strongest Acidic)	8.7	ChemAxon
pKa (Strongest Basic)	-5.3	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	3	ChemAxon
Hydrogen Donor Count	3	ChemAxon
Polar Surface Area	60.69 Å²	ChemAxon
Rotatable Bond Count	0	ChemAxon
Refractivity	7.69 m³·mol⁻¹	ChemAxon
Polarizability	5.15 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-0002-9000000000-bbc2ef0502723cb1626e	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-03di-9000000000-677c9c32b74aec8966ea	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-03di-9000000000-b1e9faff0539b871c6d2	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-03di-9000000000-62bf52315368ab01f8d0	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-03di-9000000000-83fb7281cdb2fa8b9902	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-03di-9000000000-eb0715d970431bb2a1b3	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-03di-9000000000-08dde90327520c636be4	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-03di-9000000000-d95e5a34493d97f7c66d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0006-9000000000-ecbfa201dcffb0305655	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0006-9000000000-ecbfa201dcffb0305655	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-03di-9000000000-773da64ed7032162af7c	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-03di-9000000000-5cedca1f65055425d197	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0002-9000000000-58e0888a4c1b340a5d82	Spectrum

Toxicity Profile

Route of Exposure

Not Available

Mechanism of Toxicity

Not Available

Metabolism

Not Available

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

No indication of carcinogenicity to humans (not listed by IARC).

Uses/Sources

Not Available

Minimum Risk Level

Not Available

Health Effects

Not Available

Symptoms

Not Available

Treatment

EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.

Concentrations

Not Available

External Links

DrugBank ID

DB11326

HMDB ID

HMDB0035731

FooDB ID

FDB014459

Phenol Explorer ID

Not Available

KNApSAcK ID