Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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Hexaammonium molybdate (12027-67-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
Hexaammonium molybdate
Synonyms
Hexaammonium molybdate
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 C)
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 goggles 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.
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