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IARC MONOGRAPHS ON THE EVALUATION OF CARCINOGENIC ...

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1.1 Chemical and physical data<br />

1.1.1 Nomenclature<br />

NAPHTHALENE<br />

1. Exposure Data<br />

Chem. Abstr. Serv. Reg. No.: 91-20-3<br />

Chem. Abstr. Name: Naphthalene<br />

IUPAC Systematic Name: Naphthalene<br />

Synonyms: Naphthalin; naphthene; tar camphor; white tar<br />

1.1.2 Structural and molecular formulae and relative molecular mass<br />

C 10H 8<br />

1.1.3 Chemical and physical properties of the pure substance<br />

Relative molecular mass: 128.17<br />

(a) Description: White monoclinic prismatic plates (Lide & Milne, 1996; O’Neil et<br />

al., 2001)<br />

(b) Boiling-point: 217.9 °C, sublimes (Lide & Milne, 1996; Verschueren, 1996)<br />

(c) Melting-point: 80.2 °C (Lide & Milne, 1996)<br />

(d ) Density: d 20<br />

4 1.162 (O’Neil et al., 2001)<br />

(e) Spectroscopy data: Infrared (prism [865]; grating [169]), ultraviolet [265],<br />

nuclear magnetic resonance (proton [62]; 13C [139]) and mass spectral data have<br />

been reported1 (Sadtler Research Laboratories, 1980; Lide & Milne, 1996)<br />

( f ) Solubility: Slightly soluble in water (31–34 mg/L at 25 °C; Verschueren, 2001);<br />

soluble in ethanol and methanol; very soluble in acetone, benzene, carbon<br />

1 The numbers in brackets are referenced in Sadtler Research Laboratories (1980).<br />

–367–

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