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Chemical Sampling Information (CSI)
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General Description

Synonyms: 2-Naphthol; 2-Hydroxynaphthalene; Isonaphthol

OSHA IMIS Code Number: N605

Chemical Abstracts Service (CAS) Registry Number: 135-19-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: QL2975000; 51165

Chemical Description and Physical Properties:

white powder
molecular weight: 144.18
melting point: 122°C

Health Factors

Health Effects: Moderately toxic by ingestion and skin absorption

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Midget Impinger containing 15 mL Isopropanol
    maximum volume: 100 Liters
    maximum flow rate: 1 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/U
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

Conditions: C-18 column; 33.5% acetonitrile 65.5% water 1% acetic acid; 1.5 mL/min; UV det: 232 nm (primary wavelength); DL 3 ug/sample C/P DBA 2/78

Bulk Method:

  • Limit the amount of bulk submitted to one gram or one mL.

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