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DANGER / HIGH TOXICITYREF ID: 358

Sodium Azide Toxicology

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Toxicity Alert

This substance poses a high health risk. It may contain toxic compounds, carcinogens, or pose severe systemic poisoning hazards. Use strict safety protocols (e.g., ventilation, respirators, personal protective equipment).

Safety & Toxicological Analysis

Sodium azide (NaN3) is prohibited for use as a biocide in ceramic slips or organic binders due to extreme acute toxicity and severe physical hazards. Ingestion, inhalation, or dermal absorption poses lethal risks. Toxic effects include rapid peripheral vasodilation, profound hypotension, cardiac ischemia, neurological impairment, metabolic acidosis, and respiratory failure. No specific antidote exists for acute intoxication. Exposure may cause Reactive Airways Dysfunction Syndrome (RADS). The compound is inherently unstable; it is shock-sensitive and may undergo explosive decomposition when heated or exposed to specific metals, including those commonly found in plumbing. Interaction with heavy metals creates highly unstable, explosive metal azides. Thermal decomposition releases lethal concentrations of nitrogen oxides and sodium oxide. Alternative, non-toxic biocides should be utilized for microbial control in ceramic materials.