EMS CATALOG NO: 10500
EMS PRODUCT: Ammonium Molybdate
Tetrahydrate
DATE: 11/18/2002
PAGE NUMBER: One of 7
MATERIAL SAFETY DATA SHEET
The information contained herein is based on data considered accurate. However, no
warranty is expressed or implied regarding the accuracy of these data or the results to be
obtained from the use thereof.
Electron Microscopy Sciences assumes no responsibility for personal injury or property
damage to vendees, users or third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.
ELECTRON MICROSCOPY SCIENCES
321 MORRIS ROAD
P.O. BOX 251
FORT WASHINGTON, PA 19034 24 HOUR EMERGENCY PHONE NUMBER
(215) 646-1566 CHEMTREC: (800) 424-9300
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FOR PRODUCT AND SALES INFORMATION
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CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.
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PRODUCT IDENTIFICATION
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Ammonium Molybdate Tetrahydrate
PRODUCT NAME:
FORMULA: (NH4)6Mo7O24.H2O
SYNONYMS: Hexaammonium molybdate
CAS#: 12027-67-7
RTECS: QA4900000
TSCA: On the TSCA list.
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COMPOSITION AND INFORMATION ON INGREDIENTS
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Name : CAS # % by Weight
Ammonium molybdate tetrahydrate 12027-67-7 100
Ammonium molybdate tetrahydrate:
TOXICOLOGICAL DATA ON
INGREDIENTS ORAL (LD50): Acute: 333 mg/kg (Rat).
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HAZARDS IDENTIFICATION
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POTENTIAL ACUTE HEALTH EFFECTS:
Very dangerous in case of eye contact (irritant), of ingestion, of inhalation. Slightly
dangerous to dangerous in case of skin contact (irritant). This product is an eye irritant.
Severe over-exposure can result in death. Can be fatal if inhaled or ingested. This
product may irritate eyes and skin upon contact. Inflammation of the eye is characterized
by redness, watering, and itching.
POTENTIAL CHRONIC HEALTH EFFECTS:
Very dangerous in case of eye contact (irritant), of ingestion, of inhalation. Slightly
dangerous to dangerous in case of skin contact (irritant).
CARCINOGENIC EFFECTS: Not available.
MUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS:
Not available. Toxicity of the product to the reproductive system: Not available.
Repeated exposure to a highly toxic material may produce general deterioration of health
by an accumulation in one or many human organs.
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FIRST AID MEASURES
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EYE CONTACT:
Check for and remove any contact lenses. IMMEDIATELY flush eyes with running
water for at least 15 minutes, keeping eyelids open. COLD water may be used. DO NOT
use an eye ointment.
Seek medical attention.
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SKIN CONTACT:
If the chemical got onto the clothed portion of the body, remove the contaminated clothes
as quickly as possible, protecting your own hands and body. Place the victim under a
deluge shower. If the chemical touches the victim's exposed skin, such as the hands:
Gently and thoroughly wash the contaminated skin with running
water and non-abrasive soap. Be particularly careful to clean folds, crevices, creases and
groin. COLD water may be used. Cover the irritated skin with an emollient. If irritation
persists, seek medical attention. Wash contaminated clothing before reusing.
SERIOUS SKIN CONTACT:
Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial
cream. Seek immediate medical attention.
INHALATION:
Allow the victim to rest in a well-ventilated area. Seek immediate medical attention.
INGESTION:
Remove dentures if any. Have conscious person drink several glasses of water or milk.
INDUCE VOMITING by sticking finger in throat. Lower the head so that the vomit will
not reenter the mouth
and throat. NEVER give an unconscious person anything to ingest. Seek
medical attention.
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FIRE AND EXPLOSION DATA
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FLAMMABILITY OF THE PRODUCT: Non-flammable.
AUTO-IGNITION TEMPERATURE: Not applicable.
FLASH POINTS: Not applicable.
FLAMMABLE LIMITS: Not applicable.
PRODUCTS OF COMBUSTION: Not applicable.
FIRE HAZARDS IN PRESENCE OF
VARIOUS SUBSTANCES: Not applicable.
EXPLOSION HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES:
Risks of explosion of the product in presence of mechanical impact:
Not available.
Risks of xplosion of the product in presence of static discharge:
Not available.
No specific information is available in our database regarding the product's risks of
explosion in the presence of various materials.
FIRE FIGHTING MEDIA: Non-flammable.
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ACCIDENTAL RELEASE MEASURES
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SMALL SPILL:
Use appropriate tools to put the spilled solid in a convenient waste disposal container.
Finish cleaning by spreading water on the contaminated surface and dispose of according
to local and regional authority requirements.
LARGE SPILL: Poisonous solid.
Stop leak if without risk. DO NOT get water inside container. DO NOT
touch spilled material. Use water spray to reduce vapors. Prevent entry into sewers,
basements or confined areas, dike if needed. Call for assistance on disposal. Finish
cleaning by spreading water on the
contaminated surface and allow to evacuate through the sanitary system.
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HANDLING AND STORAGE
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PRECAUTIONS: Keep locked up. DO NOT ingest. DO NOT breathe dust. In case
of insufficient ventilation, wear suitable respiratory equipment. If ingested, seek medical
advice immediately and show the
container or the label. Avoid contact with skin and eyes.
STORAGE: Keep container tightly closed. Keep in a cool, well ventilated place.
Highly toxic or infectious materials should be stored in a separate locked safety storage
cabinet or room.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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ENGINEERING CONTROLS:
Use process enclosures, local exhaust ventilation, or other engineering controls to keep
airborne levels below recommended exposure limits. If user operations generate dust,
fume or mist, use ventilation to keep exposure to airborne contaminants below the
exposure limit.
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PERSONAL PROTECTION:
Splash goggles. Lab coat. Dust respirator. Be sure to use a MSHA/NIOSH approved
respirator or equivalent. Gloves (impervious). Wear appropriate respirator when
ventilation is inadequate.
PERSONAL PROTECTION IN CASE OF A LARGE SPILL:
Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing
apparatus should be used to avoid inhalation of the product. Suggested protective
clothing might not be sufficient; consult a specialist BEFORE handling this product.
EXPOSURE LIMITS: Not available.
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PHYSICAL AND CHEMICAL PROPERTIES
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PHYSICAL STATE/APPEARANCE: Solid. (Crystalline solid.)
MOLECULAR WEIGHT: 1235.86
pH(1% soln/water): Not available.
BOILING POINT: Not available.
MELTING POINT: Decomposes.
CRITICAL TEMPERATURE: Not available.
SPECIFIC GRAVITY: 2.276 (water=1)
VAPOR PRESSURE: Not available.
VAPOR DENSITY: Not available.
VOLATILITY: Not available.
ODOR THRESHOLD: Not available.
WATER/OIL DIST. COEFF.: Not available.
IONICITY(in Water): Not available.
DISPERSION PROPERTIES: See solubility in water.
SOLUBILITY: Easily soluble in cold water, hot water.
ODOR: Ammoniacal. (Slight.)
TASTE: Not available.
COLOR: White or light-green.
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STABILITY AND REACTIVITY DATA
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STABILITY: The product is stable.
INSTABILITY TEMPERATURE: Not available.
CONDITIONS OF INSTABILITY: No additional remark.
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INCOMPATIBILITY WITH VARIOUS
SUBSTANCES: No specific information is available in our database
regarding the reactivity of this material in presence
of various materials.
CORROSIVITY: No specific information is available in our database
regarding the corrosivity of this product in presence of
various materials.
POLYMERIZATION: No
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TOXICOLOGICAL INFORMATION
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ROUTES OF ENTRY: Ingestion. Inhalation.
TOXICITY TO ANIMALS: Acute oral toxicity (LD50): 333 mg/kg (Rat).
CHRONIC EFFECTS ON HUMANS: Toxicity of the product to the
reproductive system: Not available.
OTHER TOXIC EFFECTS ON HUMANS:
Very dangerous in case of eye contact (irritant), of ingestion, of
inhalation. Slightly dangerous to dangerous in case of skin
contact (irritant).
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ECOLOGICAL INFORMATION
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ECOTOXICITY: Not available.
BOD5 and COD: Not available.
PRODUCTS OF BIODEGRADATION: Some metallic oxides.
TOXICITY OF THE PRODUCTS OF
BIODEGRADATION: The products of degradation are as toxic
as the original product.
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DISPOSAL CONSIDERATION
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WASTE DISPOSAL: Recycle to process, if possible. Consult your local or regional
authorities.
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REGULATORY INFORMATION
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FEDERAL AND STATE REGULATIONS:
The following product is listed by the State of Massachusetts:
Ammonium molybdate tetrahydrate
The following product is listed by the State of Pennsylvania:
Ammonium molybdate tetrahydrate
The following product is listed on TSCA: Ammonium molybdate tetrahydrate
OTHER REGULATIONS:
OSHA: Hazardous by definition of Hazard Communication Standard (29
CFR 1910.1200).
CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): This product is
on the Domestic Substances List (DSL), and is acceptable for use under the
provisions of CEPA.
OTHER CLASSIFICATIONS:
WHMIS (Canada) WHMIS CLASS D-1B: Material causing immediate and serious toxic
effects (TOXIC).
WHMIS CLASS D-2B: Material causing other toxic effects (TOXIC).
DSCL (EEC) R22-Harmful if ingested.
R36-Irritating to eyes.
HMIS (U.S.A.) Health Hazard - 2
Fire Hazard - 0
Reactivity -0
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