Product Identification
【Product Name】Ammonium dihydrogen phosphate
【Synonyms】ADP ；磷酸二氢铵
【CAS】7722-76-1
【Formula】H6NO4P
【Molecular Weight】115.03
【EINECS】231-764-5
【Merck】13,547
【Beilstein/Gmelin】20687 (G)

Physical and Chemical Properties
【Appearance】Brilliant white crystals or anhydrous crystalline salt or powder, greenish or grey granules.
【Solubility in water】368 g/L
【Melting Point】190℃
【Vapor Pressure】0.50 (125℃)
【Density】1.8 g/cm3
【Usage】As baking powder with sodium bicarbonate, in fermentations (yeast cultures, etc.), Fireproofing of paper, wood, fiberboard, etc.
【Refractive Index】1.4768

First Aid Measures
【Ingestion】Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
【Skin】Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
【Eyes】Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Wash hands before eating. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.

Hazards Identification
【Inhalation】Causes respiratory tract irritation.
【Skin】Causes skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis.
【Eyes】Causes eye irritation. Contact with the eyes may cause corneal damage.
【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
【EC Safety Phrase】S 22 24/25

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
【Exposure Effects】Prolonged or repeated skin contact may cause dermatitis.
【Poison Class】4

Fire Fighting Measures
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use extinguishing media appropriate to the surrounding fire. Substance is noncombustible. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Accidental Release Measures
【Small spills/leaks】Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
【Stability】Stable at room temperature in closed containers under normal storage and handling conditions.
【Incompatibilities】Strong acids, strong bases, strong oxidizing agents, strong reducing agents.
【Decomposition】Oxides of phosphorus, irritating and toxic fumes and gases, nitric oxide (NOx) and ammonia (NH3) fumes.

Transport Information
【HS Code】3105 40 00