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Product Current position:Home > Product> 1,5-Naphthalene diisocyanate,NDI
1,5-Naphthalene diisocyanate,NDI
CAS No:   3173-72-6

1. Introduction of 1,5-Naphthalene diisocyanate
1,5-Naphthalene diisocyanate is also called 1,5-Naphthylene di-isocyanate ; 1,5-Diisocyanatonaphthalene ; 1,5-Naphthyl diisocyanate ; 1,5-Naphthylene diisocyanate ; 4-13-00-00342 (Beilstein Handbook Reference) ; BRN 2212353 ; CCRIS 8920 ; EINECS 221-641-4 ; NSC 240728 ; Isocyanic acid, 1,5-naphthylene ester ; Naphthalene, 1,5-diisocyanato- ; 1,5-Naphthalene diisocyanate [Diisocyanates]. The IUPAC Name of 1,5-Naphthalene diisocyanate is 1,5-Diisocyanatonaphthalene.

2. Properties of 1,5-Naphthalene diisocyanate
Melting Point: 130°C 
Polar Surface Area: 58.86 Å2 
Index of Refraction: 1.618 
Molar Refractivity: 60.56 cm3 
Molar Volume: 172.7 cm3 
Surface Tension: 49.8 dyne/cm 
Density: 1.21 g/cm3 
Flash Point: 128.6 °C 
Enthalpy of Vaporization: 55.59 kJ/mol 
Boiling Point: 314.7 °C at 760 mmHg 
Vapour Pressure: 0.000459 mmHg at 25°C
Classification Code: Tumor data

3. Toxicity of 1,5-Naphthalene diisocyanate


Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LC50 inhalation 270mg/m3/4H (270mg/m3) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

National Technical Information Service. Vol. OTS0572846,

4. Safety Information of 1,5-Naphthalene diisocyanate
A powerful allergen. An irritant. Questionable carcinogen. When heated to decomposition it emits toxic fumes of NOx. See also ISOCYANATES.
Hazard Codes of 1,5-Naphthalene diisocyanate (CAS NO.3173-72-6): HarmfulXn 
Risk Statements: 20-36/37/38-42-52/53 
R20: Harmful by inhalation. 
R36/37/38: Irritating to eyes, respiratory system and skin. 
R42: May cause sensitization by inhalation. 
R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
Safety Statements: 26-28-38-45-61 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S28: After contact with skin, wash immediately with plenty of soap-suds. 
S38: In case of insufficient ventilation, wear suitable respiratory equipment. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets. 
RIDADR: 2206 
RTECS: NQ9600000 
HazardClass: 6.1(b) 
PackingGroup: III

5. Use of 1,5-Naphthalene diisocyanate
1,5-Naphthalene diisocyanate is used as intermediate.

6. Other details of 1,5-Naphthalene diisocyanate
1,5-Naphthalene diisocyanate should be keep away from heat, sparks, and flame. keep away from sources of ignition. and stored in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

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