Substance profile
1,5-naphthylene diisocyanate [containing < 0.1 % (w/w) of particles with an aerodynamic diameter of below 50 µm]
1,5-naphthylene diisocyanate [containing < 0.1 % (w/w) of particles with an aerodynamic diameter of below 50 µm]: 1,5-naphthalene diisocyanate is a white to light-yellow crystalline flakes.
01 · Identification
What 1,5-naphthylene diisocyanate… is
1,5-naphthylene diisocyanate [containing < 0.1 % (w/w) of particles with an aerodynamic diameter of below 50 µm]: 1,5-naphthalene diisocyanate is a white to light-yellow crystalline flakes. Its molecular formula is C12H6N2O2 and its molecular weight is 210.19 g/mol. It boils at 263 °C, melts at 127 °C.
Under the GHS it carries the signal word Danger.
Other names for 1,5-naphthylene diisocyanate…
- 1,5-naphthylene diisocyanate
- [containing < 0.1 % (w/w) of particles with an aerodynamic diameter of below 50 µm]
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H335 | May cause respiratory irritation. |
| H315 | Causes skin irritation. |
| H319 | Causes serious eye irritation. |
| H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled. |
| H317 | May cause an allergic skin reaction. |
| H412 | Harmful to aquatic life with long lasting effects. |
Precautionary statements: P261, P264, P272, P273, P280, P302, P305, P313, P332, P333, P337, P338, P352, P501
This page lists only the codes assigned to 1,5-naphthylene diisocyana…. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
03 · Physical and chemical properties
1,5-naphthylene diisocyanate… properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 262.78 °C (505 °F) | NIOSH | |
| 262.78 °C (505 °F) | at 760 mmHg | CAMEO | |
| Melting point | 127.22 °C (261 °F) | NIOSH | |
| 130 °C (266 °F) | ICSC | ||
| Density | 1.42 g/cm³ | ICSC | |
| Vapor pressure | 0.003 mmHg | OSHA | |
| 0.003 mmHg | at 23.89 °C | NIOSH | |
| Flash point | 155 °C (311 °F) | NIOSH | |
| 192 °C (377.6 °F) | ICSC | ||
| Lower explosive limit (LEL) | Combustible Solid | NIOSH |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 1,5-naphthylene diisocyanate…
Incompatible materials
None reported
Source: The National Institute for Occupational Safety and Health (NIOSH)
Reactivity
Isocyanates and thioisocyanates, such as 1,5-NAPHTHALENE DIISOCYANATE, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 1,5-naphthylene diisocyan… in the storage compatibility matrix →
Safety Data Sheet
Getting an SDS for 1,5-naphthylene diisocyana…
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of 1,5-naphthylene… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
Nearby
Substances next to 1,5-naphthylene diisocyana…
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