Dust entry

Naphthalene diisocyanate dust

Airborne particulate from white-to-light-yellow crystalline naphthalene diisocyanate flakes.

Airborne form

dust

The form describes what is suspended in air at the point of exposure. A material can produce more than one form, such as dust during handling and fume during heating.

Health effects

eye irritationnose irritationthroat irritationrespiratory sensitizationcoughpulmonary secretionschest painbreathing difficultyasthmaeye effectsrespiratory-system effects

Evidence

The NIOSH Pocket Guide describes naphthalene diisocyanate as white-to-light-yellow crystalline flakes and identifies inhalation, ingestion, skin, and eye contact routes; reported effects include respiratory sensitization, cough, pulmonary secretions, chest pain, breathing difficulty, and asthma.

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Physical Description; Exposure Routes; Symptoms; Target Organs · 1

Physical Description White to light-yellow, crystalline flakes. Exposure Routes inhalation, ingestion, skin and/or eye contact. Symptoms irritation eyes, nose, throat; resp sensitization, cough, pulmonary secretions, chest pain, dyspnea (breathing difficulty); asthma. Target Organs Eyes, respiratory system.

Controls

enclose isocyanate solid handling
local exhaust ventilation
exposure monitoring
prevent skin and eye contact
use appropriate particulate respiratory protection
prevent contaminated-surface exposure