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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: It is how easily substance can burn or ignite, causing fire or combustion by brief contact with an ignition source (such as a burning match)
Principles of method if other than guideline:
It is how easily substance can burn or ignite, causing fire or combustion by brief contact with an ignition source (such as a burning match)
GLP compliance:
no
Test procedure:
other: bunsen burner
Max. temp. reached:
950
Result:
negative outcome (no effect observed)
Interpretation of results:
not classified based on GHS criteria
Conclusions:
7-anilino-4-hydroxynaphthalene-2-sulfonic acid ignites only when the flame of bunsen burner having temperature of 950°C is brought in contact with it. Thus it can be concluded that 7-anilino-4-hydroxynaphthalene-2-sulfonic acid is flammable only at high temperature of about 950°C.
Executive summary:

7-anilino-4-hydroxynaphthalene-2-sulfonic acid ignites only when the flame of bunsen burner having temperature of 950°C is brought in contact with it. Thus it can be concluded that 7-anilino-4-hydroxynaphthalene-2-sulfonic acid is flammable only at high temperature of about 950°C. However since such high temperatures are not found under normal circumstances of transportation and use7-anilino-4-hydroxynaphthalene-2-sulfonic acid was considered non-flammable.

Description of key information

7-anilino-4-hydroxynaphthalene-2-sulfonic acid ignites only when the flame of bunsen burner having temperature of 950°C is brought in contact with it. Thus it can be concluded that 7-anilino-4-hydroxynaphthalene-2-sulfonic acid is flammable only at high temperature of about 950°C. However since such high temperatures are not found under normal circumstances of transportation and use7-anilino-4-hydroxynaphthalene-2-sulfonic acid was considered non-flammable.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

The chemical 7-anilino-4-hydroxynaphthalene-2-sulphonic acid has NFPA Flammability rating between 0 to 1. This suggests low likelihood of the chemical being flammable. Hence this end point was considered for waiver & the chemical is classified as "Non Flammable" for chemical safety assessment.

Justification for classification or non-classification

7-anilino-4-hydroxynaphthalene-2-sulfonic acid ignites only when the flame of bunsen burner having temperature of 950°C is brought in contact with it. Thus it can be concluded that 7-anilino-4-hydroxynaphthalene-2-sulfonic acid is flammable only at high temperature of about 950°C. However since such high temperatures are not found under normal circumstances of transportation and use7-anilino-4-hydroxynaphthalene-2-sulfonic acid was considered non-flammable.