COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 1 of 10
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
COBALT(II) SULFATE, HEPTAHYDRATE
SYNONYMS
Co-S-O4, "cobalt sulphate", "cobalt monosulfate", "cobalt monosulphate",
"cobaltous sulfate", "cobaltous sulphate", "cobalt (II) sulfate", "cobalt (II)
sulphate", "cobalt (II) sulfate 7-hydrate", "cobalt (II) sulphate 7-hydrate",
"sulfuric acid, cobalt (2+) salt (1:1)", "sulphuric acid, cobalt (2+) salt
(1:1)", "cobalt sulfate", "cobalt (II) sulphate (1:1)", "cobalt (II) sulfate
(1:1)"
PRODUCT USE
Ceramics, pigments, glazes, in plating baths for cobalt, additive to soils,
catalyst, paint and ink drier, storage batteries.
SUPPLIER
Company: Quantum Chemicals Pty Ltd
Address:
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
HAZARDOUS SUBSTANCE. NON-DANGEROUS GOODS. According to the
Criteria of NOHSC, and the ADG Code.
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 2 of 10
Section 2 - HAZARDS IDENTIFICATION
POISONS SCHEDULE
None
RISK
Harmful if swallowed.
Limited evidence of a carcinogenic effect.
Inhalation and/or skin contact may produce health damage*.
Cumulative effects may result following exposure*.
Possible skin sensitiser*.
* (limited evidence).
SAFETY
Do not breathe dust.
Use only in well ventilated areas.
Keep container in a well ventilated place.
Take off immediately all contaminated clothing.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
cobalt(II) sulfate, heptahydrate 10026-24-1 >97
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? Wash out immediately with fresh 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.
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 3 of 10
Section 4 - FIRST AID MEASURES
鈥? If pain persists or recurs seek medical attention.
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 fumes or combustion products are inhaled remove from contaminated area.
鈥? Lay patient down. Keep warm and rested.
鈥? Prostheses such as false teeth, which may block airway, should be removed,
where possible, prior to initiating first aid procedures.
鈥? Apply artificial respiration if not breathing, preferably with a demand valve
resuscitator, bag-valve mask device, or pocket mask as trained. Perform CPR if
necessary.
鈥? Transport to hospital, or doctor.
NOTES TO PHYSICIAN
鈥? Chronic exposures to cobalt and its compounds results in the so-called "hard
metal pneumoconiosis" amongst industrial workers. The lesions consist of nodular
conglomerate shadows in the lungs, together with peribronchial infiltration. The
disease may be reversible. The acute form of the disease resembles a
hypersensitivity reaction with malaise, cough and wheezing; the chronic form
progresses to cor pulmonale.
鈥? Chronic therapeutic administration may cause goiter and reduced thyroid
activity.
鈥? An allergic dermatitis, usually confined to elbow flexures, the ankles and
sides of the neck, has been described.
鈥? Cobalt cardiomyopathy may be diagnosed early by changes in the final part of
the ventricular ECG (repolarisation). In the presence of such disturbances, the
changes in carbohydrate metabolism (revealed by the glucose test) are of
important diagnostic value.
鈥? Treatment generally consists of a combination of Retabolil (1 injection per
week over 4 weeks) and beta-blockers (average dose 60-80 mg Obsidan/24 hr).
Potassium salts and diuretics have also proved useful.
BIOLOGICAL EXPOSURE INDEX (BEI)
Determinant Sampling time Index Comments
Cobalt in urine End of shift at 15 ug/L B
end of workweek
Cobalt in blood End of shift at 1 ug/L B, SQ
end of workweek
B: Background levels occur in specimens collected from subjects NOT exposed
SQ: Semi-quantitative determinant - Interpretation may be ambiguous; should be
used as a screening test or confirmatory test.
Section 5 - FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA
There is no restriction on the type of extinguisher which may be used.
FIRE FIGHTING
Alert Fire Brigade and tell them location and nature of hazard.
鈥? Wear full body protective clothing with breathing apparatus.
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 4 of 10
Section 5 - FIRE FIGHTING MEASURES
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.
Equipment should be thoroughly decontaminated after use.
FIRE/EXPLOSION HAZARD
Non combustible.
Not considered to be a significant fire risk.
Decomposes on heating and produces toxic fumes of sulfur oxides (SOx).
FIRE INCOMPATIBILITY
None known.
HAZCHEM
None
Personal Protective Equipment
Breathing apparatus.
Gas tight chemical resistant suit.
Limit exposure duration to 1 BA set30 mins.
Section 6 - ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES
MINOR SPILLS
鈥? Clean up all spills immediately.
鈥? Avoid contact with skin and eyes.
鈥? Wear impervious gloves and safety glasses.
鈥? Use dry clean up procedures and avoid generating dust.
鈥? Sweep up or
鈥? Vacuum up (consider explosion-proof machines designed to be grounded during
storage and use).
鈥? Place spilled material in clean, dry, sealable, labelled container.
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.
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:
cobalt(II) sulfate, heptahydrate 250 mg/m鲁
irreversible or other serious effects or symptoms which could
impair an individual's ability to take protective action is:
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 5 of 10
Section 6 - ACCIDENTAL RELEASE MEASURES
cobalt(II) sulfate, heptahydrate 50 mg/m鲁
other than mild, transient adverse effects
without perceiving a clearly defined odour is:
cobalt(II) sulfate, heptahydrate 0.3 mg/m鲁
The threshold concentration below which most people.
will experience no appreciable risk of health effects:
cobalt(II) sulfate, heptahydrate 0.1 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
___________________________________________
+ X + X 0 +
___________________________________________
+: 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
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.
SUITABLE CONTAINER
Packaging as recommended by manufacturer.
鈥? Check that containers are clearly labelled.
Multi-ply woven plastic or paper bag with sealed plastic liner
NOTE: Bags should be stacked, blocked, interlocked, and limited in height so
that they are stable and secure against sliding or collapse.
Plastic drum.
Metal can.
Metal drum.
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 6 of 10
Section 7 - HANDLING AND STORAGE
STORAGE INCOMPATIBILITY
Keep dry.
STORAGE REQUIREMENTS
Keep dry.
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
The following materials had no OELs on our record under the following CAS or Chemwatch (CW) numbers
cobalt(II) sulfate, heptahydrate: No data available for CAS:10026-24-1 CAS:10124-43-3
Epidemiological studies do not support a link between cobalt and abnormal
growths (neoplasms) in humans.
In view of the serious effects seen in experimental animals after a relatively
short exposure period at 0.1 mg/m鲁 the recommended TLV-TWA is thought to reduce
the significant risk of material impairment of health posed by respiratory
disease and pulmonary sensitization which have been shown to occur at higher
levels of exposure. The value does not apply generally to cobalt compounds. A
significant increase in the risk of lung cancer was reported among workers
involved in cobalt production (with concomitant exposure to nickel and arsenic)
and hard-metal workers with documented exposure to cobalt-containing dusts.
A significant increase in lung cancer risk was reported among workers involved
in cobalt production (with concomitant exposure to nickel and arsenic) and
hard-metal workers with documented exposure to cobalt-containing dusts. A
significant increase in lung cancer risk has been observed in workers whose
exposure began more than 20 years previously. A number of single cases of
malignant tumours, mostly sarcomas, have been reported at the site, following
implant of cobalt-containing orthopedic implants.
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
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 7 of 10
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
in a clean environment only after workers have washed hands thoroughly. [CDC
NIOSH Current Intelligence Bulletin 59].
HANDS/FEET
Impervious gloves.
Rubber gloves.
Protective footwear.
OTHER
Overalls.
鈥? Impervious apron.
鈥? Barrier cream.
鈥? Eyewash unit.
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
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.)
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 8 of 10
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
"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
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
Pink to red odourless monoclinic, prismatic crystals. Soluble in
water, (60.4 g/100 ml in cold water, 67 g/100 ml in hot water). Slightly
soluble in methanol, ethanol. On heating dehydrates to the hexahydrate
(monoclinic, prismatic crystals) at 41.5 C and to the monohydrate at 71 C.
Hygroscopic.
Hexahydrate occurs in nature as the mineral bieberite; also available in the
anhydrous form.
PHYSICAL PROPERTIES
Solid.
Mixes with water.
Molecular Weight: 281.10 (hepta) Boiling Range (掳C): 735 (decomposes)
Melting Range (掳C): 96.8 (hepta) Specific Gravity (water=1): 1.95 (hepta)
Solubility in water (g/L): Soluble. pH (as supplied): Not applicable
pH (1% solution): Not available Vapour Pressure (kPa): Not applicable.
Volatile Component (%vol): Not applicable. Evaporation Rate: Not applicable
Relative Vapour Density (air=1): Not applicable. Flash Point (掳C): Not applicable
Lower Explosive Limit (%): Not applicable Upper Explosive Limit (%): Not applicable
Autoignition Temp (掳C): Not applicable Decomposition Temp (掳C): 735
State: Divided solid
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
Stable under normal storage conditions.
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 9 of 10
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
Hazardous polymerisation will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
POTENTIAL HEALTH EFFECTS
ACUTE HEALTH EFFECTS
SWALLOWED
The material is highly discomforting to the gastro-intestinal tract and may be
harmful if swallowed in large quantity.
Sulfates are not well absorbed orally, but can cause diarrhoea.
In toxic doses soluble cobalt salts produce stomach pain and vomiting, flushing
of the face and ears, rash, ringing in the ears, nervous deafness and reduced
blood flow to the extremities.
EYE
The dust may produce eye discomfort causing smarting, pain and redness.
SKIN
The dust is moderately discomforting to the skin and is capable of causing
allergic skin reactions which may lead to dermatitis.
Toxic effects may result from skin absorption.
INHALED
The dust may be highly discomforting to the upper respiratory tract.
Health hazards from welding fume containing cobalt are not well documented but
there are well-known dangers associated with the processing of the substance by
other techniques. Inhalation of the fume may result in shortness of breath,
coughing and pneumonitis. Hypersensitivity, involving lung changes, occurs in a
small number of workers exposed to the fume; the symptoms disappear after
exposure ends. Obliterative bronchiolitis adenomatosis has been produced in
guinea pigs receiving intratracheal injections of 10 mg cobalt dust.
Intratracheal administration of 12.5 mg/kg caused lethargy and death in rats in
15 minutes to 6 hours.
CHRONIC HEALTH EFFECTS
Principal routes of exposure are by accidental skin and eye contact and
inhalation of generated dusts. Inhalation of cobalt powder can induce asthma,
chest tightness and chronic inflammation of the bronchi. Chronic exposure to
cobalt causes increase in blood haemoglobin, increased production of cells in
the blood marrow and thyroid gland, discharge from around the heart and damage
to the alpha cells of the pancreas. Long-term administration has caused goitre
(overactivity of the thyroid) and reduced thyroid activity. Allergic
inflammation of the skin may appear following exposure to cobalt, usually
exhibited as red patches. Injection of cobalt can cause cancer at the site of
entry.
TOXICITY AND IRRITATION
TOXICITY IRRITATION
as the heptahydrate:
Oral (rat) LD50: 768 mg/kg Nil Reported
WARNING: This substance has been classified by the IARC as Group 2B: Possibly
Carcinogenic to Humans.
CARCINOGEN
IARC: International Agency for Research on Cancer (IARC)
Carcinogens: cobalt(II) sulfate, heptahydrate Category: Group 2B:
Possibly carcinogenic to humans
COBALT(II) SULFATE, HEPTAHYDRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 5-Apr-2005 CHEMWATCH 100705
A317TC CD 2006/2 Page 10 of 10
Section 11 - TOXICOLOGICAL INFORMATION
CARCINOGEN
NTPB: US National Toxicology Program (NTP) 11th Report Part B.
Reasonably Anticipated to be a Human Carcinogen: cobalt(II)
sulfate, heptahydrate Category:
Section 12 - ECOLOGICAL INFORMATION
No data for cobalt(II) sulfate, heptahydrate.
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
Section 15 - REGULATORY INFORMATION
POISONS SCHEDULE
None
REGULATIONS
cobalt(II) sulfate, heptahydrate (CAS: 10026-24-1) is found on the following
regulatory lists;
Australia Inventory of Chemical Substances (AICS)
International Agency for Research on Cancer (IARC) Carcinogens
International Council of Chemical Associations (ICCA) - High Production Volume
List
OECD Representative List of High Production Volume (HPV) Chemicals
Section 16 - OTHER INFORMATION
This document is copyright. Apart from any fair dealing for the purposes of
private study, research, review or criticism, as permitted under the Copyright
Act, no part may be reproduced by any process without written permission from
CHEMWATCH. TEL (+61 3) 9572 4700.
Issue Date: 5-Apr-2005
Print Date: 28-Jun-2006
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