SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 1 of 10
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
SODIUM MOLYBDATE
SYNONYMS
Mo-O4.2Na, Na2MoO4, "molybdic acid, disodium salt", "disodium molybdate",
"sodium molybdate (VI)", "sodium molybdate, anhydrous", "sodium molybdate
dihydrate", "molybdate (MoO4)2-, disodium"
PRODUCT USE
As a reagent in analytical chemistry, reagent for alkaloid testing. In metal
finishing, brightening agent for zinc plating. Corrosion inhibitor. Additive as
trace element for fertilizers and in animal feed supplements. Used in production
of molybdate inorganic and organic toners, pigments.
SUPPLIER
Quantum Chemicals Pty Ltd
70 Quantum Close
Quantum Industrial Park
Dandenong South VIC 3175
Australia
Telephone: 1300 782 688
Emergency Tel: 1300 131 001
Fax: 1300 782 699
HAZARD RATINGS
Flammability
Toxicity
Body Contact
Reactivity
Chronic
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4
Section 2 - HAZARDS IDENTIFICATION
STATEMENT OF HAZARDOUS NATURE
NON-HAZARDOUS SUBSTANCE. NON-DANGEROUS GOODS. According to
the Criteria of NOHSC, and the ADG Code.
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 2 of 10
Section 2 - HAZARDS IDENTIFICATION
POISONS SCHEDULE
None
RISK
Cumulative effects may result following exposure*.
* (limited evidence).
SAFETY
Do not breathe dust.
Avoid contact with skin.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
sodium molybdate 7631-95-0 > 98
Section 4 - FIRST AID MEASURES
SWALLOWED
If poisoning occurs, contact a doctor or Poisons Information Centre.
鈥? IF SWALLOWED, REFER FOR MEDICAL ATTENTION, WHERE POSSIBLE, WITHOUT DELAY.
鈥? For advice, contact a Poisons Information Centre or a doctor.
Where Medical attention is not immediately available or where the patient is
more than 15 minutes from a hospital or unless instructed otherwise:
鈥? Induce vomiting with fingers down the back of the of the throat, ONLY IF
CONSCIOUS.
鈥? Lean patient forward or place on left side (head-down position if possible) to
maintain open airway and prevent aspiration.
NOTE: Wear a protective glove when inducing vomiting by mechanical means.
鈥? In the mean time, qualified first-aid personnel should treat the patient
following observation and employing supportive measures as indicated by the
patient's condition.
鈥? If the services of a medical officer or medical doctor are readily available,
the patient should be placed in his/her care and a copy of the MSDS should be
provided. Further action will be the responsibility of the medical specialist.
鈥? If medical attention is not available on the worksite or surroundings send the
patient to a hospital together with a copy of the MSDS.
EYE
If this product comes in contact with the eyes:
鈥? Immediately hold eyelids apart and flush the eye continuously with running
water.
鈥? Ensure complete irrigation of the eye by keeping eyelids apart and away from
eye and moving the eyelids by occasionally lifting the upper and lower lids.
鈥? Continue flushing until advised to stop by the Poisons Information Centre or a
doctor, or for at least 15 minutes.
鈥? Transport to hospital or doctor without delay.
鈥? Removal of contact lenses after an eye injury should only be undertaken by
skilled personnel.
SKIN
If skin contact occurs:
鈥? Immediately remove all contaminated clothing, including footwear
鈥? Flush skin and hair with running water (and soap if available).
鈥? Seek medical attention in event of irritation.
INHALED
鈥? If dust is inhaled, remove from contaminated area.
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 3 of 10
Section 4 - FIRST AID MEASURES
鈥? Encourage patient to blow nose to ensure clear passage of breathing.
鈥? If irritation or discomfort persists seek medical attention.
NOTES TO PHYSICIAN
Treat symptomatically.
Section 5 - FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA
There is no restriction on the type of extinguisher which may be used.
Use extinguishing media suitable for surrounding area.
FIRE FIGHTING
Alert Fire Brigade and tell them location and nature of hazard.
鈥? Wear breathing apparatus plus protective gloves.
鈥? Prevent, by any means available, spillage from entering drains or water
courses.
Use fire fighting procedures suitable for surrounding area.
Use water delivered as a fine spray to control the fire and cool adjacent area.
DO NOT approach containers suspected to be hot.
If safe to do so, remove containers from path of fire.
FIRE/EXPLOSION HAZARD
鈥? Non combustible.
鈥? Not considered a significant fire risk, however containers may burn.
Decomposes on heating and produces toxic fumes of.
metal oxides.
FIRE INCOMPATIBILITY
Avoid contamination with strong oxidising agents as ignition may result.
HAZCHEM
None
Section 6 - ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES
MINOR SPILLS
Clean up all spills immediately.
Wear impervious gloves and safety glasses.
Avoid contact with skin and eyes.
Use dry clean up procedures and avoid generating dust.
Place in suitable containers for disposal.
MAJOR SPILLS
鈥? Clear area of personnel and move upwind.
鈥? Alert Fire Brigade and tell them location and nature of hazard.
鈥? Control personal contact by using protective equipment and dust respirator.
鈥? Prevent spillage from entering drains, sewers or water courses.
鈥? Recover product wherever possible. Avoid generating dust.
鈥? Sweep / shovel up.
鈥? If required, wet with water to prevent dusting.
鈥? Put residues in labelled plastic bags or other containers for disposal.
鈥? Wash area down with large quantity of water and prevent runoff into drains.
鈥? If contamination of drains or waterways occurs, advise emergency services.
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 4 of 10
Section 6 - ACCIDENTAL RELEASE MEASURES
EMERGENCY RESPONSE PLANNING GUIDELINES (ERPG)
The maximum airborne concentration below which it is believed that nearly all
individuals could be exposed for up to one hour WITHOUT experiencing or developing
life-threatening health effects is:
sodium molybdate 500 mg/m鲁
irreversible or other serious effects or symptoms which could
impair an individual's ability to take protective action is:
sodium molybdate 50 mg/m鲁
other than mild, transient adverse effects
without perceiving a clearly defined odour is:
sodium molybdate 30 mg/m鲁
The threshold concentration below which most people.
will experience no appreciable risk of health effects:
sodium molybdate 10 mg/m鲁
American Industrial Hygiene Association (AIHA)
Ingredients considered according to the following cutoffs
Very Toxic (T+) >= 0.1% Toxic (T) >= 3.0%
R50 >= 0.25% Corrosive (C) >= 5.0%
R51 >= 2.5%
else >= 10%
where percentage is percentage of ingredient found in the mixture
SAFE STORAGE WITH OTHER CLASSIFIED CHEMICALS
___________________________________________
+ + + + + +
___________________________________________
+: May be stored together
O: May be stored together with specific preventions
X: Must not be stored together
Personal Protective Equipment advice is contained in Section 8 of the MSDS.
Section 7 - HANDLING AND STORAGE
PROCEDURE FOR HANDLING
Avoid generating and breathing dust.
鈥? Limit all unnecessary personal contact.
鈥? Wear protective clothing when risk of exposure occurs.
鈥? Use in a well-ventilated area.
鈥? Avoid contact with incompatible materials.
鈥? When handling, DO NOT eat, drink or smoke.
鈥? Keep containers securely sealed when not in use.
鈥? Avoid physical damage to containers.
鈥? Always wash hands with soap and water after handling.
鈥? Work clothes should be laundered separately.
鈥? Use good occupational work practice.
鈥? Observe manufacturer's storing and handling recommendations.
鈥? Atmosphere should be regularly checked against established exposure standards
to ensure safe working conditions are maintained.
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 5 of 10
Section 7 - HANDLING AND STORAGE
SUITABLE CONTAINER
Multi ply paper bag with sealed plastic liner or heavy gauge plastic bag
NOTE: Bags should be stacked, blocked, interlocked, and limited in height so
that they are stable and secure against sliding or collapse. Check that all
containers are clearly labelled and free from leaks. Packing as recommended by
manufacturer.
STORAGE INCOMPATIBILITY
Avoid storage with oxidisers, alkali metals e.g. sodium, potassium, lithium.
and.
common metals and their alloys.
Explodes on contact with molten magnesium.
Violent reaction with interhalogens.
Incandescent reaction with hot sodium, potassium or lithium.
STORAGE REQUIREMENTS
鈥? Store in original containers.
鈥? Keep containers securely sealed.
鈥? Store in a cool, dry, well-ventilated area.
鈥? Store away from incompatible materials and foodstuff containers.
鈥? Protect containers against physical damage and check regularly for leaks.
鈥? Observe manufacturer's storing and handling recommendations.
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE CONTROLS
Source Material TWA TWA STEL STEL Peak Peak
ppm mg/m鲁 ppm m5/m鲁 ppm mg/m鲁
_________________________ ________________ _____ _____ _____ _____ _____ _____
Australia Exposure sodium molybdate 5
Standards
The following materials had no OELs on our record under the following CAS or Chemwatch (CW) numbers
sodium molybdate: No data available for CAS:7631-95-0 CAS:10102-40-6
EMERGENCY EXPOSURE LIMITS
Material Original IDLH Original IDLH Revised IDLH Value Revised IDLH Value
Value (ppm) Value (mg/m3) (mg/m3) (ppm)
sodium molybdate N.E. N.E. 1,000
An increased incidence of non-specific symptoms including headache, weakness,
fatigue, anorexia and joint and muscle weakness has been reported to occur in
mining and metallurgy workers exposed to 60-600 mg (as Mo). Some investigators
have attributed gout and elevated uric acid concentration found in some
Armenians to result from exposures to Armenian soils rich in molybdenum, whilst
exposure has been implicated as a cause of bone disease amongst Indians. "These
involvements are speculative". [US National Research Council]. As far as it is
known, the recommended TLV-TWA incorporates a large margin of safety against
potential pulmonary or systemic effects.
EXPOSURE STANDARDS FOR MIXTURE
"Worst Case" computer-aided prediction of spray/ mist or fume/ dust components
and concentration:
Composite Exposure Standard for Mixture (TWA) :0.5 mg/m鲁.
Operations which produce a spray/mist or fume/dust, introduce particulates to
the breathing zone.
If the breathing zone concentration of ANY of the components listed below is
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 6 of 10
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
exceeded, "Worst Case" considerations deem the individual to be overexposed.
Component Breathing Zone ppm Breathing Zone mg/m鲁 Mixture Conc (%).
Component Breathing Zone Mixture Conc
(mg/m鲁) (%)
sodium molybdate 0.5000 100.0
PERSONAL PROTECTION
EYE
鈥? Safety glasses with side shields; or as required,
鈥? Chemical goggles.
鈥? Contact lenses may pose a special hazard; soft contact lenses may absorb and
concentrate irritants. A written policy document, describing the wearing of lens
or restrictions on use, should be created for each workplace or task. This
should include a review of lens absorption and adsorption for the class of
chemicals in use and an account of injury experience. Medical and first-aid
personnel should be trained in their removal and suitable equipment should be
readily available. In the event of chemical exposure, begin eye irrigation
immediately and remove contact lens as soon as practicable. Lens should be
removed at the first signs of eye redness or irritation - lens should be removed
in a clean environment only after workers have washed hands thoroughly. [CDC
NIOSH Current Intelligence Bulletin 59].
HANDS/FEET
Wear general protective gloves: i.e. Disposable polythene gloves or Cotton
gloves or Light weight rubber gloves, with Barrier cream preferably Safety
footwear.
OTHER
鈥? Overalls.
鈥? Eyewash unit.
GLOVE SELECTION INDEX
Glove selection is based on a modified presentation of the:
"Forsberg Clothing Performance Index".
The effect(s) of the following substance(s) are taken into account in the
computer-generated selection: sodium molybdate
Protective Material CPI *.
________________________________
:0 T:0 T+:0 C(R34):0 C(R35):0 Xi(R36):0 Xi(R37):0 Xi(R38):0 Xi(R41):0
________________________________
* CPI - Chemwatch Performance Index
A: Best Selection
B: Satisfactory; may degrade after 4 hours continuous immersion
C: Poor to Dangerous Choice for other than short term immersion
NOTE: As a series of factors will influence the actual performance of the glove,
a final selection must be based on detailed observation. -
* Where the glove is to be used on a short term, casual or infrequent basis,
factors such as "feel" or convenience (e.g. disposability), may dictate a choice
of gloves which might otherwise be unsuitable following long-term or frequent
use. A qualified practitioner should be consulted.
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 7 of 10
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
RESPIRATOR
Protection Factor Half-Face Full-Face Powered Air
Respirator Respirator Respirator
10 x ES P1 Air-line* -- PAPR-P1 -
50 x ES Air-line** P2 PAPR-P2
100 x ES - P3 -
Air-line* -
100+ x ES - Air-line** PAPR-P3
* - Negative pressure demand ** - Continuous flow.
The local concentration of material, quantity and
conditions of use determine the type of personal
protective equipment required.
For further information consult site specific
CHEMWATCH data (if available), or your
Occupational Health and Safety Advisor.
ENGINEERING CONTROLS
Use in a well-ventilated area.
鈥? Local exhaust ventilation is required where solids are handled as powders or
crystals; even when particulates are relatively large, a certain proportion will
be powdered by mutual friction.
鈥? Exhaust ventilation should be designed to prevent accumulation and
recirculation of particulates in the workplace.
鈥? If in spite of local exhaust an adverse concentration of the substance in air
could occur, respiratory protection should be considered. Such protection might
consist of:
(a): particle dust respirators, if necessary, combined with an absorption
cartridge;
(b): filter respirators with absorption cartridge or canister of the right type;
(c): fresh-air hoods or masks
鈥? Build-up of electrostatic charge on the dust particle, may be prevented by
bonding and grounding.
鈥? Powder handling equipment such as dust collectors, dryers and mills may
require additional protection measures such as explosion venting.
Air contaminants generated in the workplace possess varying "escape" velocities
which, in turn, determine the "capture velocities" of fresh circulating air
required to efficiently remove the contaminant.
Type of Contaminant: Air Speed:
direct "spray " spray painting in 1-2.5 m/s (200-500 f/min.)
shallow "booths " drum "filling "
conveyer "loading " crusher "dusts "
gas discharge (active generation into
zone of rapid air motion)
grinding " abrasive "blasting " 2.5-10 m/s (500-2000 f/min.)
"tumbling " high speed wheel generated
dusts (released at high initial
velocity into zone of very high rapid
air motion).
Within each range the appropriate value depends on:
Lower end of the range Upper end of the range
1: Room air currents minimal or 1: Disturbing room air currents
favourable to capture
2: Contaminants of low toxicity or of 2: Contaminants of high toxicity
nuisance value only
3: Intermittent, low production. 3: High production, heavy use
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 8 of 10
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
4: Large hood or large air mass in 4: Small hood-local control only
motion
Simple theory shows that air velocity falls rapidly with distance away from the
opening of a simple extraction pipe. Velocity generally decreases with the
square of distance from the extraction point (in simple cases). Therefore the
air speed at the extraction point should be adjusted, accordingly, after
reference to distance from the contaminating source. The air velocity at the
extraction fan, for example, should be a minimum of 4-10 m/s (800-2000 f/min)
for extraction of crusher dusts generated 2 metres distant from the extraction
point. Other mechanical considerations, producing performance deficits within
the extraction apparatus, make it essential that theoretical air velocities are
multiplied by factors of 10 or more when extraction systems are installed or
used.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE
Small white odourless scales or flakes; very soluble in water.
Available as dihydrate CAS 10102-40-6, and anhydrous CAS 7631-95-0.
Readily soluble, solubility = 56% @ 20C and 84% @ 100C.
PHYSICAL PROPERTIES
Solid.
Mixes with water.
Molecular Weight: 205.92 anhydrous Boiling Range (掳C): Not applicable.
Melting Range (掳C): 687 Specific Gravity (water=1): 3.28
Solubility in water (g/L): Soluble pH (as supplied): Not applicable
pH (1% solution): 9-10 (5% soln.) Vapour Pressure (kPa): Negligible
Volatile Component (%vol): Nil Evaporation Rate: Non Vol. @ 38C
Relative Vapour Density (air=1): Not available. Flash Point (掳C): Non Combustible
Lower Explosive Limit (%): Not applicable Upper Explosive Limit (%): Not applicable
Autoignition Temp (掳C): Not applicable Decomposition Temp (掳C): Not available.
State: Divided solid Viscosity: Not available
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
鈥? Presence of incompatible materials.
鈥? Product is considered stable.
鈥? Hazardous polymerisation will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
POTENTIAL HEALTH EFFECTS
ACUTE HEALTH EFFECTS
SWALLOWED
Considered an unlikely route of entry in commercial/industrial environments.
The material is highly discomforting.
and.
harmful.
if swallowed.
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 9 of 10
Section 11 - TOXICOLOGICAL INFORMATION
Ingestion may result in nausea, abdominal irritation, pain and vomiting.
EYE
The dust may be highly discomforting.
to the eyes.
SKIN
The material is moderately discomforting.
to the skin.
if exposure is prolonged.
Open cuts, abraded or irritated skin should not be exposed to this material.
The material may accentuate any pre-existing skin condition.
INHALED
The dust may be highly discomforting.
to the upper respiratory tract.
if inhaled.
and may be.
harmful.
if exposure is prolonged.
Bronchial and alveolar exudate are apparent in animals exposed to molybdenum by
inhalation. Molybdenum fume may produce bronchial irritation and moderate fatty
changes in liver and kidney.
CHRONIC HEALTH EFFECTS
Principal routes of exposure are by accidental skin and eye contact and
inhalation of generated dusts. High levels of molybdenum can cause joint
problems in the hands and feet with pain and lameness. Molybdenum compounds can
also cause liver changes with elevated levels of enzymes and cause over-activity
of the thyroid gland. A generalised feeling of unwellness can occur, with
tiredness, weakness, diarrhoea, loss of appetite and weight. Molybdenum has been
associated with cancers of the airways, but on the other hand, a low intake of
molybdenum may cause an increased risk of developing oesophageal cancer.
TOXICITY AND IRRITATION
Not available. Refer to individual constituents.
unless otherwise specified data extracted from RTECS - Register of Toxic Effects
of Chemical Substances
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
鈥? Recycle wherever possible or consult manufacturer for recycling options.
鈥? Consult State Land Waste Management Authority for disposal.
鈥? Bury residue in an authorised landfill.
鈥? Recycle containers if possible, or dispose of in an authorised landfill.
Section 14 - TRANSPORTATION INFORMATION
HAZCHEM
None
NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS:UN,IATA,IMDG
SODIUM MOLYBDATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 22-Jan-2006 CHEMWATCH 21890
A317TC CD 2006/2 Page 10 of 10
Section 15 - REGULATORY INFORMATION
POISONS SCHEDULE
None
REGULATIONS
sodium molybdate (CAS: 7631-95-0) is found on the following regulatory lists;
Australia Inventory of Chemical Substances (AICS)
OECD Representative List of High Production Volume (HPV) Chemicals
sodium molybdate (CAS: 10102-40-6) is found on the following regulatory lists;
Australia Inventory of Chemical Substances (AICS)
OECD Representative List of High Production Volume (HPV) Chemicals
Section 16 - OTHER INFORMATION
Ingredients with multiple CAS Numbers
Ingredient Name CAS
sodium molybdate 7631-95-0, 10102-40-6
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Act, no part may be reproduced by any process without written permission from
CHEMWATCH. TEL (+61 3) 9572 4700.
Issue Date: 22-Jan-2006
Print Date: 29-Jun-2006
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