Boric acid

Boric acid
Structural formula	Space-fillin model
Names
	IUPAC names Boric acid; Trihydrooxidoboron
	Ither names Orthoboric acid,; Boracic acid,; Sassolite,; Optibor,; Borofax,; Trihydroxyborane,; Boron(III) hydroxide,; Boron Trihydroxide
Identifiers
CAS Nummer	10043-35-3 ;
3D model (JSmol)	Interactive eemage; Interactive eemage;
ChEBI	CHEBI:33118 ;
ChEMBL	ChEMBL42403 ;
ChemSpider	7346 ;
EC Nummer	233-139-2
KEGG	D01089 ;
PubChem CID	7628;
UNII	R57ZHV85D4 ;
	InChI InChI=1S/BH3O3/c2-1(3)4/h2-4H Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N ; InChI=1/BH3O3/c2-1(3)4/h2-4H Key: KGBXLFKZBHKPEV-UHFFFAOYAI;
	SMILES OB(O)O; B(O)(O)O;
Properties
Chemical formula	H3BO3
Molar mass	61.83 g·mol−1
Appearance	White crystalline solid
Density	1.435 g/cm3
Meltin pynt	170.9 °C (339.6 °F; 444.0 K)
Bylin pynt	300 °C (572 °F; 573 K)
Solubility in watter	2.52 g/100 mL (0 °C) ; 4.72 g/100 mL (20 °C) ; 5.7 g/100 mL (25 °C) ; 19.10 g/100 mL (80 °C) ; 27.53 g/100 mL (100 °C)
Solubility in other solvents	Soluble in lawer alcohols ; moderately soluble in pyridine ; very slichtly soluble in acetone
Acidity (pKa)	9.24, 12.4, 13.3
Magnetic susceptibility	-34.1·10−6 cm3/mol
Structur
Molecular shape	Trigonal planar
Dipole moment	Zero
Pharmacology
ATC code	S02AA03 (WHO) D08AD (WHO)
Hazards
EU clessification	Xn
R-phrases	R60 R61
S-phrases	S53 S45
NFPA 704	0 2 0
Flash pynt	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (Median dose)	2660 mg/kg, oral (rat)
Relatit compoonds
Relatit compoonds	Boron trioxide; Borax
	Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
	verify (whit is ?)
	Infobox references

Boric acid, cried hydrogen borate, boracic acid, orthoboric acid an [acidum boricum] error: {{lang}}: text has italic markup (help) an aw, is a waik, monobasic Lewis acid o boron eften uised as an antiseptic, insecticide, flame retardant, neutron absorber, or precursor tae ither chemical compoonds. It haes the chemical formula H₃B O₃ (whiles written B(OH)₃), an exeests in the form o colourless creestals or a white pouder that dissowles in watter. When occurrin as a mineral, it is cried sassolite.

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