- Summary,
French
version
-
- On this page :
Beryllium monoxide toxicology, by Edouard Bastarache
-
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WOLLASTONITE
by
Edouard Bastarache
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-
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- IDENTIFICATION
:
-
- CAS Number :
13983-17-0
- Molecular formula :
N/A
-
- MAIN SYNONYMS :
-
- French names :
- Fibres minérales
naturelles Wollastonite
- AEDELFORSITE
- GILLEBACHITE
- RIVAITE
- English names :
- Fibres-Natural Mineral
Fibres, Wollastonite
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- USES AND EMISSION
SOURCES :
-
- - manufacture of ceramics
and glass
- - manufacture of
paints
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- HYGIENE AND SAFETY
:
-
- I. Appearance :
- Powdery solid, white,
odorless.
-
- II. Physical Properties
:
-
- Physical state :
Solid
- Density : 2,9 g/ml at
20 °C
- Solubility in water :
0,095 g/L at 20 °C
- Vapor density (air=1) :
N/A
- Boiling point
:
1 538,00
°C
- Vapor pressure :
Negligeable
- pH : 9,9 as a pulp
(10% in water)
- Olfactory detection limit
: N/A
- Evaporation rate
(ether=1) : N/A
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- III. Inflammability and
Explosiveness :
- This product is non
flammable.
-
- IV. Techniques and Means
of Extinction :
- If the product is involved
in a fire, use all means of extinction appropriate for
surrounding materials.
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- PREVENTION
:
-
- I. Reactivity :
-
- A. Stability
:
- This product is stable.
- B. Decomposition products
:
- Above 1120 °C, its
crystalline structure changes to be transformed into
para-wollastonite.
-
- II. Handling :
- Avoid any contact with skin.
Wear ocular protection, and in the event of
insufficient ventilation, a suitable breathing
apparatus. Avoid any operation leading to the
formation of a cloud of dust.
-
- III. Storage :
- Store in a well ventilated
place.
- Store in an airtight
container.
-
- IV. Leaks :
- Collect in a hermetic
container duly identified by using a suitable
technique in order to prevent the contamination of the
environment.
-
- V. Waste Disposal :
- Dispose of according to
local regulation.
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- TOXICOLOGY
:
-
- I. Pulmonary Effects
:
- In the rat, following
long-term exposure, one did not observe pulmonary
cancer nor fibrosis.
-
- II. Pregnancy
:
-
- A. Effects on development
:
- No data concerning antenatal
development was found in the consulted documentary
sources.
- B. Effects on
reproduction :
- No data concerning
reproduction was found in the consulted documentary
sources.
- C. Effects on breast milk
:
- There is no data concerning
its excretion or detection in milk.
-
- III. Carcinogenic Effects
:
- Evaluation by the I.A.R.C.:
The agent (the mixture, circumstances of exposure)
cannot be classified as for its cancerogenicity for
man (group 3).
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- FIRST AID
:
-
- I. Inhalation :
- In the event of inhalation
of vapors or dust, bring the person into a ventilated
place. See a doctor.
-
- II. Eyes :
- Rinse eyes with plenty of
water. Wash skin with soap and water.
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- QUEBEC'S EXPOSURE
LIMITS :
-
- Valeur d'Exposition
Moyenne Pondérée (VEMP)
:
- Poussières
respirables : 5 mg/m³,
- Poussières totales :
10 mg/m³
-
- Note :
- Without asbestos fibers, and
<1% crystalline silica.
-
-
- Reference
;
- CSST-Québec,
Répertoire toxicologique.
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- Edouard
Bastarache M.D.
- (Occupational
& Environmental
Medicine)
-
- Author
of " Substitutions for raw ceramic
materials "
- Tracy,
Québec, CANADA
- edouardb@colba.net
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- Smart2000.fr
©
Octobre
2006
-
FRANCE
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