Product Identification
【Product Name】Hexaammonium molybdate
【Synonyms】钼酸铵
【CAS】12027-67-7
【Formula】H24Mo7N6O22
【Molecular Weight】1131.8
【EINECS】234-722-4
【RTECS】QA5076000
【RTECS Class】Tumorigen; Mutagen
【Merck】12,565
【Beilstein/Gmelin】19894 (G)

Physical and Chemical Properties
【Appearance】White to greenish-yellow solid.
【Solubility in water】430 g/L
【Melting Point】286-287℃
【Vapor Pressure】0.007 (151℃)
【Density】1.782 g/cm3
【Usage】In photography and for decorating ceramics, for detecting and determining phosphates, arsenates, lead, also as reagent for alkaloids and many other substances.
【Vapor Density】2.5

First Aid Measures
【Ingestion】Dilution: following ingestion and/or prior to gastric evacuation, immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 15 ml/kg in a child).
【Inhalation】Move to fresh air.
【Skin】Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
【Eyes】Flush with water for at least 15 min.

Handling and Storage
【Storage】Keep container tightly closed. May be stored in general chemical storage area.
【Handling】Avoid breathing dust. Use in area with adequate ventilation. Avoid contact with eyes, skin and clothing.

Hazards Identification
【Inhalation】Respiratory tract irritation has been reported in animals.
【Skin】Causes irritation.
【Eyes】Causes irritation.
【Ingestion】Diarrhea has been reported in workers and animals. Anorexia occurred in animals.
【Hazards】Toxic oxides of nitrogen may form in fire.

Exposure Controls/Personal Protection
【Personal Protection】Chemical splash ggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
【Respirators】NIOSH/MSHA approved high-efficiency particulate respirator.
【Exposure Effects】Anorexia and listlessness have been reported in animals.
【Exposure limit(s)】OSHA PEL: 5 mg/m3 as Mo.

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 agent most appropriate to extinguish fire.

Accidental Release Measures
【Small spills/leaks】Use appropriate protective equipment. With a clean shovel, carefully place material into a clean, dry container and cover. Remove from area. Flush spill area with water.

Stability and Reactivity
【Stability】Stable at normal temperature and pressure.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Ammonia.
【Combustion Products】Toxic oxides of nitrogen may form in fire.