Boric acid

Product Details
  • Boric acid
    Identifiers
    CAS number 10043-35-3 
    PubChem 7628
    ChemSpider 7346 
    UNII R57ZHV85D4 
    EC number 233-139-2
    KEGG D01089 
    ChEMBL CHEMBL42403 
     

  • Properties

    • Molecular formula H3BO3
    Molar mass 61.83 g mol−1
    Appearance White crystalline solid
    Density 1.435 g/cm3
    Melting point

    170.9 ¡ãC, 444 K, 340 ¡ãF

    Boiling point

    300 ¡ãC, 573 K, 572 ¡ãF

    Solubility in water 2.52 g/100 mL (0 ¡ãC)
    4.72 g/100 mL (20 ¡ãC)
    5.7 g/100 mL (25¡ãC)
    19.10 g/100 mL (80 ¡ãC)
    27.53 g/100 mL (100 ¡ãC)
    Solubility in other solvents Soluble in lower alcohols
    moderately soluble in pyridine
    very slightly soluble in acetone
    Acidity (pKa) 9.24 (see text)
    Structure
    Molecular shape Trigonal planar
    Dipole moment Zero
    Hazards
    MSDS External MSDS
    EU classification Harmful (Xn)
    Repr. Cat. 2
    R-phrases R60 R61
    S-phrases S53 S45
    NFPA 704
    NFPA 704.svg
    0
    1
    0
    Flash point Non-flammable.
    LD50 2660 mg/kg, oral (rat)
    Related compounds
    Related compounds Boron trioxide
    Borax
    Supplementary data page
    Structure and
    properties    		 n, ¦År, etc.
    Thermodynamic
    data    		 Phase behaviour
    Solid, liquid, gas
    Spectral data UV, IR, NMR, MS
     Packing:25kg in bag
     www.chinagerun.com
    •

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