DAP - Diammonium Phosphate

Health hazards

Avoid contact with eyes, skin and clothing. Wash thoroughly after handling. Diammonium phosphate is generally recognized as safe when used in accordance with good manufacturing practice.

Physical hazards

Slippery when wet PHYSICAL FORM Solid 0 Classification Not WHMIS Special hazard: None PPE: Section 8 Sub Class (N/A) Controlled

Appearance/Odor

Gray, tan, brown or black granules Slight ammonia odour OVERVIEW TOXICITY Non-toxic NFPA HAZARD

WHMIS Classification

WHMIS HAZARD Health: 1

Hazard pictograms

N/A EMERGENCY Flammability: 0 Instability: 0

Potential health effects

EYES: Contact may cause mild eye irritation including stinging, watering and redness. SKIN: Contact may cause mild irritation including redness and a burning sensation. No harmful effects from skin absorption have been reported. INHALATION (BREATHING): Studies by other exposure routes suggest a low degree of hazard by inhalation under normal circumstances. INGESTION (SWALLOWING): Low degree of toxicity by ingestion. SIGNS AND SYMPTOMS: Effects of overexposure may include irritation of the nose, throat and digestive tract, nausea, vomiting, diarrhea, coughing and shortness of breath. CANCER: Data not available. TARGET ORGANS: Data not available. DEVELOPMENTAL: Data not available. OTHER COMMENTS: Effects of overexposure to dusts can include irritation of the eyes and respiratory tract, pneumoconiosis (dust congested lungs), pneumonitis (lung inflammation), coughing, vomiting, diarrhea, abdominal pain and jaundice. PRE-EXISTING MEDICAL CONDITIONS: Respiratory (asthma-like) disorders, dermatitis

Environmental effects

DAP is considered biodegradable and is taken up as a nutrient by vegetation. Large spills can harm or kill vegetation. May release ammonium ions that are toxic to fish. Un-ionized ammonia concentrations above 0.02 mg/l are considered toxic in fresh water. May release phosphates which will result in algae growth, increased turbidity, and depleted oxygen. At extremely high concentrations, this may be hazardous to fish or other marine organisms. Release to watercourses may cause effects downstream. Fish 96 hour LC50, OECD Guidelines 203 (rainbow trout): >86mg/L; Non-toxic to aquatic organisms as defined by USEPA.