Acenaphthene

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    83-32-9

    Molecular formula
    C12H10

    SMILES
    C1CC2=CC=CC3=C2C1=CC=C3

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

    Retention indicies (RI)

    • Carbowax: 2395.0

  • Odor profile

    floral 62.29%
    animal 43.85%
    rose 39.3%
    geranium 33.85%
    earthy 32.5%
    fruity 31.67%
    sweet 30.6%
    metallic 29.67%
    green 27.04%
    orange 27.04%

    Scent© AI

    Odor threshold>

    • Odor detection in air, 8.0X10-2 ppm (chemically pure)
    • Threshhold odor concn in water at room temp: 0.08 ppm (range 0.02 to 0.22 ppm)
    • Odor low 0.5048 mg/cu m, odor high 0.5048 mg/cu m.

  • Properties

    XLogP3-AA
    3.9 Well soluble in BB, DEP, IAA

    Molecular weight
    154.21 g/mol

    Vapor pressure est.

    • 0.0074 hPa @ 20°C
    • 0.0121 hPa @ 25°C

    Evaporation rate
    Slow

    Melting point expt.

    • 203 °F (NTP, 1992)
    • 93 °C
    • 95 °C

    Boiling point

    • 534 °F at 760 mmHg (NTP, 1992)
    • 277.5 °C
    • 279 °C

    Flash point expt.

    • 125.0 °C (257.0 °F) - closed cup
    • 135 °C o.c.

    Solubility expt.

    • less than 1 mg/mL at 68 °F (NTP, 1992)
    • In water, 3.90 mg/L at 25 °C
    • In water, 3.57-3.93 mg/L at 22.2 to 25.04 °C (range of 7 values)
    • 1 gram dissolves in 31 mL alcohol, 56 mL methanol, 25 ml propanol, 2.5 mL chloroform, 5 mL benzene or toluene
    • 3.2 g/100 mL glacial acetic acid
    • Solubility in water, g/100ml at 25 °C: 0.0004

  • Synonyms

    • ACENAPHTHENE
    • 83-32-9
    • 1,2-Dihydroacenaphthylene
    • 1,8-Ethylenenaphthalene
    • peri-Ethylenenaphthalene
    • Naphthyleneethylene
    • Acenaphthylene, 1,2-dihydro-
    • Ethylenenaphthalene
    • 1,8-Dihydroacenaphthalene
    • acenapthene
NaN -Infinity

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

Botanical

Name CAS Botanical Proportion
Artemisia variabilis (Italy) Artemisia variabilis Ten., fam. Asteraceae (Compositae) 50.0%