BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 1 of 9
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
BARIUM SULFATE
SYNONYMS
Ba-O4-S, BaSO4, "barium sulphate", "precipitated barium sulfate 1:1", barytes,
barite, sulfuric, "sulphuric acid barium salt 1:1", "precipitated barytes",
"heavy spar", Actybaryte, Finemeal,
PRODUCT USE
Occurs naturally as mineral barite, barytes. Wide use as inert filler pigment
extender in paints, primers, inks, plastics, floor tiles, paper coatings,
polymer fibres and rubber. Used as the semi transparent base (lake) for organic
pigments. Used as a thixotropic weighting mud in oil well drilling. Barium
sulfate is radio-opaque and is used as barium meal in medical X ray diagnosis.
CARE: in dispensing, barium sulfate must be named in full to avoid confusion
with poisonous barium sulfide, sulfite or carbonate. The raw material for
manufacture of lithopone, a white pigment; In the manufacture of photographic
paper, wallpaper and glassmaking. In battery plate expanders; in heavy concrete
for radiation shield.
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 69
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 2 of 9
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
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.
POISONS SCHEDULE
None
RISK
Cumulative effects may result following exposure*.
May produce discomfort of the respiratory system*.
* (limited evidence).
SAFETY
Do not breathe dust.
Avoid contact with skin.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
barium sulfate 7727-43-7 99.95
Section 4 - FIRST AID MEASURES
SWALLOWED
鈥? Immediately give a glass of water.
鈥? First aid is not generally required. If in doubt, contact a Poisons
Information Centre or a doctor.
EYE
If this product comes in contact with eyes:
鈥? Wash out immediately with water.
鈥? If irritation continues, seek medical attention.
鈥? Removal of contact lenses after an eye injury should only be undertaken by
skilled personnel.
SKIN
Brush off dust.
If skin or hair contact occurs:
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.
鈥? Encourage patient to blow nose to ensure clear passage of breathing.
鈥? If irritation or discomfort persists seek medical attention.
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 3 of 9
Section 4 - FIRST AID MEASURES
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.
FIRE FIGHTING
鈥? Alert Fire Brigade and tell them location and nature of hazard.
鈥? Wear breathing apparatus plus protective gloves for fire only.
鈥? Prevent, by any means available, spillage from entering drains or water
courses.
鈥? Use fire fighting procedures suitable for surrounding area.
鈥? DO NOT approach containers suspected to be hot.
鈥? Cool fire exposed containers with water spray from a protected location.
鈥? If safe to do so, remove containers from path of fire.
鈥? Equipment should be thoroughly decontaminated after use.
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.
sulfur oxides (SOx).
FIRE INCOMPATIBILITY
No known incompatibility with normal range of industrial materials.
HAZCHEM
None
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.
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 4 of 9
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:
barium sulfate 250 mg/m鲁
irreversible or other serious effects or symptoms which could
impair an individual's ability to take protective action is:
barium sulfate 50 mg/m鲁
other than mild, transient adverse effects
without perceiving a clearly defined odour is:
barium sulfate 30 mg/m鲁
The threshold concentration below which most people.
will experience no appreciable risk of health effects:
barium sulfate 15 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.
Avoid contact with eyes.
Avoid physical damage to containers.
When handling, DO NOT eat, drink or smoke.
Keep containers securely sealed when not in use.
Wash hands with soap and water after handling.
SUITABLE CONTAINER
Glass 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.
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 5 of 9
Section 7 - HANDLING AND STORAGE
STORAGE INCOMPATIBILITY
Violently explosive with powdered aluminium; ignites in the presence of
phosphorus (primed with nitrate-calcium silicide).
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 barium sulfate 10
Standards
Barium sulfate has been identified as a nontoxic dust. However high dust
levels have caused benign pneumoconiosis (baritosis). The TLV-TWA is
thought to be protective against the risk of eye, nose and upper
respiratory tract irritation and perhaps, pneumoconiosis.
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.
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 6 of 9
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
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
None required when handling small quantities.
OTHERWISE:
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
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 7 of 9
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
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
Dense fine odourless white powder or polymorphous crystals.
Solubility in water 0.00025% i.e. practically insoluble.
Only 0.6% solubility in 3% hydrochloric acid solution.
Slightly soluble in concentrated sulfuric acid and soluble in hot
concentrated sulfuric acid.
Particle size 2-25 microns. Rhombic crystals with a transition point at
1149 deg C to monoclinic. Finer grades, are precipitated.
PHYSICAL PROPERTIES
Solid.
Does not mix with water.
Sinks in water.
Molecular Weight: 233.39 Boiling Range (掳C): Not available.
Melting Range (掳C): 1580 Specific Gravity (water=1): 4.5 @ 15 C
Solubility in water (g/L): Insoluble pH (as supplied): Not applicable
pH (1% solution): Not applicable. Vapour Pressure (kPa): Negligible
Volatile Component (%vol): Nil Evaporation Rate: Non Volatile
Relative Vapour Density (air=1): Not applicable. 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): > 1600
State: Divided solid Viscosity: Not Applicable
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
Product is considered stable and hazardous polymerisation will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
POTENTIAL HEALTH EFFECTS
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 8 of 9
Section 11 - TOXICOLOGICAL INFORMATION
ACUTE HEALTH EFFECTS
SWALLOWED
Considered to be non toxic.
Considered an unlikely route of entry in commercial/industrial environments.
The material may be mildly discomforting if swallowed in large quantity Sulfate
salts are poorly absorbed from the gastro-intestinal tract but because of
osmotic activity are able to draw water from the lumen to produce diarrhoea
(purging). Sulfate ion usually has little toxicological potential.
EYE
The material may be mildly discomforting and abrasive to the eyes.
SKIN
Not considered an irritant through normal use.
The material may be mildly discomforting and abrasive to the skin.
INHALED
Not normally a hazard due to non-volatile nature of product.
The dust may be discomforting to the upper respiratory tract.
Barium fumes are respiratory irritants. Over-exposure to barium dusts and fume
may result in rhinitis, frontal headache, wheezing, laryngeal spasm, salivation
and anorexia. Long term effects include nervous disorders and adverse effects on
the heart, circulatory system and musculature. Heavy exposures may result in a
benign pneumoconiosis.
CHRONIC HEALTH EFFECTS
Primary route of exposure is usually by. inhalation of generated dust. Prolonged
or repeated skin contact may cause drying with cracking, irritation and possible
dermatitis following. Long term exposure to high dust concentrations may cause
changes in lung function i.e. pneumoconiosis; caused by particles less than 0.5
micron penetrating and remaining in the lung. Prime symptom is breathlessness;
lung shadows show on X-ray. Barium compounds may cause high blood pressure,
airway irritation and damage the liver, spleen and bone marrow. Prolonged
exposure may cause a lung inflammation and scarring. Symptoms of this include a
worsening dry cough, shortness of breath on exertion, increased chest expansion
and weakness. Stringy phlegm in the cough appears later, with more difficulty in
breathing and a further loss of lung capacity. Barium sulfate does not cause
permanent scarring of the lungs.
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
Recycle if possible, otherwise dispose in a chemically secure landfill.
Section 14 - TRANSPORTATION INFORMATION
HAZCHEM
None
BARIUM SULFATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2005 CHEMWATCH 13887
A317TC CD 2006/2 Page 9 of 9
Section 14 - TRANSPORTATION INFORMATION
NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS:UN,IATA,IMDG
Section 15 - REGULATORY INFORMATION
POISONS SCHEDULE
None
REGULATIONS
barium sulfate (CAS: 7727-43-7) is found on the following regulatory lists;
Australia High Volume Industrial Chemical List (HVICL)
Australia Inventory of Chemical Substances (AICS)
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: 16-Jun-2005
Print Date: 28-Jun-2006
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