Boric Acid

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  • Identifiers

    CAS number
    10043-35-3

    Molecular formula
    BH3O3

    SMILES
    B(O)(O)O

    Safety labels

    Health Hazard
    Health

  • Odor profile

    Odorless 59.86%
    Alcoholic 21.22%
    Sweet 19.46%
    Fresh 19.04%
    Green 18.82%
    Clean 17.65%
    Sharp 15.95%
    Fishy 15.95%
    Ethereal 15.92%
    Pungent 15.67%

    Scent© AI

  • Properties

    Molecular weight
    61.84 g/mol

    Melting point expt.

    • 340 °F (NTP, 1992)
    • 169 undefined
    • 171 °C
    • 170.9 °C
    • 340 °F

    Boiling point

    • 572 °F at 760 mmHg (decomposes) (NTP, 1992)
    • 300 undefined
    • 572 °F

    Flash point est.
    100.63 ˚C

    Solubility expt.

    • 10 to 50 mg/mL at 66 °F (NTP, 1992)
    • Soluble in hot water, partially soluble in cold water
    • Slightly unctuous to touch; volatile with steam; solubility in water increased by hydrochloric, citric or tartaric acids
    • Solubility: in glycerol 17.5% at 25 °C; ethylene glycol 18.5% at 25 °C; in methanol 173.9 g/L at 25 °C; in ethanol 94.4 g/L at 25 °C; in acetone 0.6% at 25 °C; ethyl acetate 1.5% at 25 °C
    • Water solubility: 2.52% at 0 °C; 3.49% at 10 °C; 4.72% at 20 °C; 6.23% at 30 °C; 8.08% at 40 °C; 10.27% at 50 °C; 12.97% at 60 °C; 15.75% at 70 °C; 19.10% at 80 °C; 23.27% at 90 °C; 27.53% at 100 °C
    • Solubility in water is increased by hydrochloric acid
    • In water, 5.0X10+4 mg/L at 25 °C
    • 50 mg/mL at 25 °C
    • Solubility in water, g/100ml at 20 °C: 5.6

  • Synonyms

    • BORIC ACID
    • Orthoboric acid
    • 10043-35-3
    • Boracic acid
    • Borofax
    • Boric acid (H3BO3)
    • Boron hydroxide
    • Boron trihydroxide
    • Basilit B
    • 11113-50-1
    • Three Elephant
    • Boric acid (BH3O3)
    • Trihydroxyborone
    • Flea Prufe
    • Super Flea Eliminator
    • Orthoborsaeure
    • Borsaeure
    • Borsaure
    • Trihydroxyborane
    • Orthoboric acid (B(OH)3)
    • Optibor
    • Acidum boricum
    • NCI-C56417
    • Dr.'s 1 Flea Terminator DT
    • component of Aci-Jel
    • Dr.'s 1 Flea Terminator DFPBO
    • Dr.'s 1 Flea Terminator DF
    • Boric acid (VAN)
    • Bluboro
    • Boricum acidum
    • Caswell No. 109
    • Dr.'s 1 Flea Terminator DTPBO
    • trihydroxidoboron
    • Boric acid flakes
    • B(OH)3
    • Collyrium Eye Wash
    • Niban Granular Bait
    • CCRIS 855
    • MFCD00011337
    • NSC 81726
    • HSDB 1432
    • Ant flip
    • Homberg's salt
    • Orthoboric acid (H3BO3)
    • EINECS 233-139-2
    • UNII-R57ZHV85D4
    • NSC-81726
    • Boric acid (TN)
    • EPA Pesticide Chemical Code 011001
    • INS NO.284
    • R57ZHV85D4
    • CHEBI:33118
    • AI3-02406
    • INS-284
    • (10B)Orthoboric acid
    • Boric acid (h(sub 3)bo(sub 3))
    • H3BO3
    • DTXSID1020194
    • E-284
    • EC 233-139-2
    • [B(OH)3]
    • NSC81726
    • NCGC00090745-02
    • BORIC ACID (II)
    • BORIC ACID [II]
    • Orthboric Acid
    • BORIC ACID (MART.)
    • BORIC ACID [MART.]
    • BORIC ACID (USP-RS)
    • BORIC ACID [USP-RS]
    • Borsaure [German]
    • DTXCID10194
    • BORIC ACID (EP IMPURITY)
    • BORIC ACID [EP IMPURITY]
    • BORIC ACID (EP MONOGRAPH)
    • BORIC ACID [EP MONOGRAPH]
    • (B(OH)3)
    • Kjel-sorb
    • Kill-off
    • ortho-boric acid
    • Boric acid [USAN:JAN]
    • EINECS 237-478-7
    • hydrogen orthoborate
    • BO3
    • CAS-10043-35-3
    • Boric acid [JAN:NF]
    • BORIC ACID, ACS
    • Canagyn
    • acido borico
    • The Killer
    • Boric acid
    • V-Bella
    • HYLAFEM
    • Bluboro (Salt/Mix)
    • Homeopathic Antifungal
    • Boric acid ACS grade
    • GYNOX-SOFT
    • Boric acid, Puratronic?
    • WLN: QBQQ
    • BORIC ACID [MI]
    • Boric acid, ACS reagent
    • BORIC ACID [JAN]
    • Heptaoxotetra-Borate(2-)
    • bmse000941
    • Boric acid (JP15/NF)
    • Boric acid (JP18/NF)
    • Acidum boricum (Salt/Mix)
    • BORIC ACID [VANDF]
    • Boric acid, NF/USP grade
    • BORIC ACID [WHO-DD]
    • Boric acid, biochemical grade
    • BIDD:ER0252
    • Boric Acid - 0.5g Tablets
    • BORICUM ACIDUM [HPUS]
    • CHEMBL42403
    • BORIC ACID (B(OH)3)
    • Boric acid Electrophoresis grade
    • Collyrium Eye Wash (Salt/Mix)
    • HYLAFEMBORICUM ACIDUM 3X
    • BDBM39817
    • KGBXLFKZBHKPEV-UHFFFAOYSA-
    • Boric acid, 99.9% metals basis
    • BCP21018
    • Boric acid, 99.99% metals basis
    • Boric acid, BioXtra, >=99.5%
    • Tox21_111004
    • Tox21_202185
    • Tox21_301000

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 203.49
    methanol 400.35
    isopropanol 156.29
    water 989.42
    ethyl acetate 22.5
    n-propanol 116.29
    acetone 116.61
    n-butanol 79.23
    acetonitrile 50.5
    DMF 567.86
    toluene 3.87
    isobutanol 73.5
    1,4-dioxane 92.91
    methyl acetate 43.5
    THF 163.3
    2-butanone 44.27
    n-pentanol 60.21
    sec-butanol 74.35
    n-hexane 5.44
    ethylene glycol 358.01
    NMP 166.79
    cyclohexane 2.91
    DMSO 377.32
    n-butyl acetate 17.95
    n-octanol 25.52
    chloroform 6.6
    n-propyl acetate 26.27
    acetic acid 117.39
    dichloromethane 9.37
    cyclohexanone 29.04
    propylene glycol 272.03
    isopropyl acetate 17.22
    DMAc 259.06
    2-ethoxyethanol 184.25
    isopentanol 51.76
    n-heptane 4.63
    ethyl formate 49.79
    1,2-dichloroethane 10.66
    n-hexanol 39.34
    2-methoxyethanol 345.3
    isobutyl acetate 16.42
    tetrachloromethane 3.83
    n-pentyl acetate 17.91
    transcutol 108.41
    n-heptanol 30.15
    ethylbenzene 3.09
    MIBK 22.14
    2-propoxyethanol 144.46
    tert-butanol 139.29
    MTBE 36.83
    2-butoxyethanol 89.97
    propionic acid 79.88
    o-xylene 4.85
    formic acid 258.39
    diethyl ether 36.04
    m-xylene 4.31
    p-xylene 3.99
    chlorobenzene 2.42
    dimethyl carbonate 55.2
    n-octane 2.12
    formamide 270.51
    cyclopentanone 68.12
    2-pentanone 34.57
    anisole 16.02
    cyclopentyl methyl ether 37.2
    gamma-butyrolactone 84.51
    1-methoxy-2-propanol 233.89
    pyridine 23.81
    3-pentanone 22.48
    furfural 72.68
    n-dodecane 1.85
    diethylene glycol 207.39
    diisopropyl ether 11.46
    tert-amyl alcohol 67.41
    acetylacetone 34.15
    n-hexadecane 1.84
    acetophenone 15.76
    methyl propionate 39.6
    isopentyl acetate 13.39
    trichloroethylene 8.74
    n-nonanol 22.32
    cyclohexanol 31.51
    benzyl alcohol 24.29
    2-ethylhexanol 15.87
    isooctanol 20.42
    dipropyl ether 26.47
    1,2-dichlorobenzene 2.48
    ethyl lactate 47.6
    propylene carbonate 34.91
    n-methylformamide 260.79
    2-pentanol 46.39
    n-pentane 6.34
    1-propoxy-2-propanol 85.18
    1-methoxy-2-propyl acetate 29.82
    2-(2-methoxypropoxy) propanol 56.14
    mesitylene 3.9
    ε-caprolactone 31.24
    p-cymene 3.9
    epichlorohydrin 59.15
    1,1,1-trichloroethane 5.22
    2-aminoethanol 313.08
    morpholine-4-carbaldehyde 174.56
    sulfolane 106.32
    2,2,4-trimethylpentane 2.51
    2-methyltetrahydrofuran 52.06
    n-hexyl acetate 20.9
    isooctane 2.36
    2-(2-butoxyethoxy)ethanol 74.96
    sec-butyl acetate 13.53
    tert-butyl acetate 19.48
    decalin 1.62
    glycerin 391.49
    diglyme 129.99
    acrylic acid 88.73
    isopropyl myristate 9.98
    n-butyric acid 52.88
    acetyl acetate 13.58
    di(2-ethylhexyl) phthalate 13.23
    ethyl propionate 24.15
    nitromethane 142.46
    1,2-diethoxyethane 30.13
    benzonitrile 11.24
    trioctyl phosphate 13.62
    1-bromopropane 6.64
    gamma-valerolactone 107.25
    n-decanol 17.16
    triethyl phosphate 12.91
    4-methyl-2-pentanol 25.08
    propionitrile 32.69
    vinylene carbonate 31.31
    1,1,2-trichlorotrifluoroethane 70.61
    DMS 19.3
    cumene 3.65
    2-octanol 18.22
    2-hexanone 28.63
    octyl acetate 14.86
    limonene 4.95
    1,2-dimethoxyethane 194.57
    ethyl orthosilicate 12.83
    tributyl phosphate 13.56
    diacetone alcohol 52.27
    N,N-dimethylaniline 19.94
    acrylonitrile 46.6
    aniline 16.1
    1,3-propanediol 222.72
    bromobenzene 1.3
    dibromomethane 5.87
    1,1,2,2-tetrachloroethane 10.69
    2-methyl-cyclohexyl acetate 12.32
    tetrabutyl urea 22.95
    diisobutyl methanol 11.14
    2-phenylethanol 18.36
    styrene 3.14
    dioctyl adipate 16.03
    dimethyl sulfate 79.82
    ethyl butyrate 17.25
    methyl lactate 88.22
    butyl lactate 32.36
    diethyl carbonate 13.95
    propanediol butyl ether 90.83
    triethyl orthoformate 18.04
    p-tert-butyltoluene 4.42
    methyl 4-tert-butylbenzoate 26.86
    morpholine 120.97
    tert-butylamine 64.38
    n-dodecanol 13.05
    dimethoxymethane 215.15
    ethylene carbonate 29.23
    cyrene 56.34
    2-ethoxyethyl acetate 25.05
    2-ethylhexyl acetate 9.77
    1,2,4-trichlorobenzene 3.28
    4-methylpyridine 20.6
    dibutyl ether 13.63
    2,6-dimethyl-4-heptanol 11.14
    DEF 59.95
    dimethyl isosorbide 57.81
    tetrachloroethylene 8.98
    eugenol 41.34
    triacetin 24.46
    span 80 46.17
    1,4-butanediol 132.88
    1,1-dichloroethane 8.05
    2-methyl-1-pentanol 32.18
    methyl formate 174.84
    2-methyl-1-butanol 47.5
    n-decane 2.68
    butyronitrile 28.28
    3,7-dimethyl-1-octanol 15.01
    1-chlorooctane 5.49
    1-chlorotetradecane 3.04
    n-nonane 2.59
    undecane 2.14
    tert-butylcyclohexane 2.07
    cyclooctane 1.69
    cyclopentanol 65.85
    tetrahydropyran 40.81
    tert-amyl methyl ether 26.4
    2,5,8-trioxanonane 92.61
    1-hexene 10.12
    2-isopropoxyethanol 99.61
    2,2,2-trifluoroethanol 92.94
    methyl butyrate 32.1

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction