Ammonia and Latex Toxicity
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
Ammonia-stabilized liquid latex is commonly used in ceramics as a resist for glaze and engobe application. Ammonia is a toxic, volatile, and corrosive gas (H3N) that requires strict exposure controls. The odor threshold for ammonia is approximately 16.7 ppm; however, olfactory fatigue occurs rapidly, making the sense of smell an unreliable indicator of exposure. The Time-Weighted Average (VEMP) is 25 ppm, the Short-Term Exposure Limit (VECD) is 35 ppm, and the Immediately Dangerous to Life or Health (IDLH) level is 300 ppm. Acute exposure primarily irritates the eyes, skin, and respiratory tract, potentially causing chemical burns, dyspnea, and delayed-onset pulmonary edema. In the event of inhalation, move the victim to fresh air, provide respiratory support, and seek emergency medical attention, as symptoms may be delayed up to 48 hours. For eye or skin contact, irrigate with water for at least 20 minutes and consult a physician. All applications involving ammoniated latex must occur in a well-ventilated space. If concentrations exceed established limits, appropriate respiratory protection, chemical-resistant gloves, and eye protection are mandatory. Users should conduct preliminary material testing to ensure compatibility with ceramic porosity.