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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Chemical structure
Display Name:
Naphthalene-2-sulphonic acid
EC Number:
204-375-3
EC Name:
Naphthalene-2-sulphonic acid
CAS Number:
120-18-3
Molecular formula:
C10 H8 O3 S
IUPAC Name:
naphthalene-2-sulfonic acid

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • Naphthalene, sulfonated
  • Naphthalenesulfonic acids
  • Naphthalinsulfonsaeure
  • SP1
  • This substance is a monomer in an imported polymer, therefore no trade names are available and/or relevant.
  • Compositions

    Boundary Composition(s)

    Legal Entity Composition(s) open all close all

    Degree of purity:
    > 78 - < 90 % (w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    Naphthalene-2-sulphonic acid
    EC Number:
    204-375-3
    EC Name:
    Naphthalene-2-sulphonic acid
    CAS Number:
    120-18-3
    Molecular formula:
    C10 H8 O3 S
    IUPAC Name:
    naphthalene-2-sulfonic acid
    Impurity 1
    Chemical structure
    Reference substance name:
    Naphthalene
    EC Number:
    202-049-5
    EC Name:
    Naphthalene
    CAS Number:
    91-20-3
    Molecular formula:
    C10H8
    IUPAC Name:
    naphthalene
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Naphthalene-2-sulphonic acid
    EC Number:
    204-375-3
    EC Name:
    Naphthalene-2-sulphonic acid
    CAS Number:
    120-18-3
    Molecular formula:
    C10 H8 O3 S
    IUPAC Name:
    naphthalene-2-sulfonic acid
    State Form:
    solid: bulk
    Degree of purity:
    > 83 - <= 87 % (w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    Naphthalene-2-sulphonic acid
    EC Number:
    204-375-3
    EC Name:
    Naphthalene-2-sulphonic acid
    CAS Number:
    120-18-3
    Molecular formula:
    C10 H8 O3 S
    IUPAC Name:
    naphthalene-2-sulfonic acid