Boric acid

Boric acid
Structural formula
Structural formula
Space-fillin model
Space-fillin model
Boric acid crystals
Names
IUPAC names
Boric acid
Trihydrooxidoboron
Ither names
Orthoboric acid,
Boracic acid,
Sassolite,
Optibor,
Borofax,
Trihydroxyborane,
Boron(III) hydroxide,
Boron Trihydroxide
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
EC Nummer 233-139-2
KEGG
UNII
Properties
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)
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
Zero
Pharmacology
S02AA03 (WHO) D08AD (WHO)
Hazards
EU clessification Harmful Xn
R-phrases R60 R61
S-phrases S53 S45
NFPA 704
NFPA 704 four-colored diamondFlammability code 0: Will nae burn. E.g., watterHealth code 2: Intense or continued but nae chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroformReactivity code 0: Normally stable, even unner fire exposur condeetions, an is nae reactive wi watter. E.g., liquid nitrogenSpecial hazards (white): no code
0
2
0
Flash pynt Non-flammable
Lethal dose or concentration (LD, LC):
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).
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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 H3BO3 (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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