Johnson Matthey
SILVER FLAKE
102503 2.00 EC Current 14.09.2000
1. PRODUCT AND COMPANY IDENTIFICATION
102503
Product Code
SILVER FLAKE
Trade Name
Substance
Product Type
Johnson Matthey PLC
Manufacturer/Supplier
Precious Metals Division, Chemicals
Address
Orchard Road
ROYSTON, Hertfordshire
SG8 5HE
+(44) 1763 253000
Phone Number
+(44) 1763 253155
Fax Number
Silver metal, Ag. (in the form of Flakes, Grain, Powder, Rods, Wires, Foils,
Composition
Fibres, Sheets and Crystalline Pieces).
1
JM Version Number
04/06/91
Date of First Issue
2. COMPOSITION/INFORMATION ON THE COMPONENTS
SILVER FLAKE
Product Formal Name
.Not Specified
Product Chemical Family
7440-22-4
CAS Number
3. HAZARD IDENTIFICATION
Silver metal is practically non-toxic, acute toxicity by ingestion is low.
However, chronic absorbtion may cause"Argyria", a blue/grey discolouration
of various tissues. Localised argyria may occur on the skin from handling
metallic silver as a result of particles becoming embedded in the skin, or in
the respiratory tract following inhalation of silver dust. Generalised argyria is
recognised by the pigmentation of the skin, eyes and nails and results from
the inhalation of silver salts. This is only normally manifest after many years
of gross over-exposure. The metal is non-irritating to the skin. If particles or
splinters penetrate the skin, local irritation and secondary infection may
result. 聽
4. FIRST AID MEASURES
As supplied, this material does not present an acute hazard. As a dust,
First Aid
inhalation may cause irritation of the respiratory tract. Eye contact will
produce mechanical irritation. 聽 聽
remove from exposure and allow to rest in fresh air. Seek medical advice if
First Aid - Inhalation
symptoms persist. 聽
irrigate with water or isotonic saline solution.Seek medical 聽
First Aid - Eyes
First Aid - Skin
5. FIRE FIGHTING MEASURES
Not combustible. No special fire-fighting procedures are necessary. Use
any extinguishing agent suitable for the surrounding fire. 聽 聽 聽 聽
6. ACCIDENTAL RELEASE MEASURES
Collect in a suitable container for re-use, re-cycling or for disposal. 聽
7. HANDLING AND STORAGE
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Johnson Matthey
SILVER FLAKE
102503 2.00 EC Current 14.09.2000
7. HANDLING AND STORAGE (continued)
If the process is dusty or if fume is created, local exhaust extraction should
Handling (JM)
be used and protective clothing, including gloves and eye protection, should
be worn. There are no special requirements if used under ordinary
conditions and with adequate ventilation. 聽
Store in a cool, dry area away from incompatible materials, such as liquid
Storage (JM)
halogenated hydrocarbons and oxidising agents. Protect from physical
damage. Powder and other active forms should be kept in tightly sealed
containers under nitrogen.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
U.K. Occupational Exposure Standard for silver metal - 0.1 mg/m鈥?
for soluble compounds (as Ag) - 0.01 mg/m鈥?
USA ACGIH TLV for silver metal - 0.1 mg/m鈥?
for soluble compounds (as Ag) - 0.01 mg/m鈥?
German MAK for silver - 0.01 mg/m鈥?
(Roseman, Moss and Kon, Journal of Occupational Medicine , Vol 21, No. 6,
recommend that monitoring of the silver in air concentration and periodic slit
lamp eye examinations of the exposed workforce are helpful ways to assess
the bodily silver content). 聽 聽 聽 聽 聽
9. PHYSICAL AND CHEMICAL PROPERTIES
white metal with a face-centered-cubic structure.
Appearance
The powder is greyish-white in colour.
No odour.
Odour
not applicable
pH
2212掳C.
Boiling Range/Point
960.5掳C.
Melting Point
not applicable.
Flash Point
not flammable.
Flammability
not applicable.
Auto-flammability
not explosive.
Explosive Properties
not oxidising.
Oxidising Properties
no data.
Vapour Pressure
10.49 gm/cc.
Density
Water - insoluble.
Solubility in Water
Fat - no data.
no data.
Partition Coefficient
10. STABILITY AND REACTIVITY
Silver is more malleable and ductile than any other metal, except gold. It is
an excellent conductor of heat and electricity. The metal is blackened by
ozone, hydrogen sulfide and sulfur. It readily dissolves in dilute nitric acid
and hot concentrated sulfuric acid, but is only superficially attacked by
hydrochloric acid. Silver is soluble in fused alkali hydroxides in the presence
of air, in fused alkali peroxides and in alkali cyanides in the presence of air or
oxygen. Most silver salts are light sensitive. If ammoniacal silver solutions
are prepared from the metal, they should never be stored as explosive silver
compounds may be formed. Silver is incompatible with oxalic or tartaric
acids as these salts decompose, possibly explosively, on heating. The
action of silver on nitric acid in the presence of ethanol may also form
explosive silver compounds. Finely divided silver and hydrogen peroxide
solutions may explode and the powder will react with iodoform with
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Johnson Matthey
SILVER FLAKE
102503 2.00 EC Current 14.09.2000
10. STABILITY AND REACTIVITY (continued)
incandescence. 聽 聽 聽 聽 聽 聽
11. TOXICOLOGICAL INFORMATION
The only toxicological data available for silver metal is for colloidal silver.
LD50 (oral-mouse) 100 mg/kg and LDLo (ivn-rabbit) 49 mg/kg.
Massive silver metal is practically non-toxic. It is not carcinogenic or
mutagenic.
12. ECOLOGICAL INFORMATION
No threat is posed to the environment by this material.
13. DISPOSAL
Return accumulated waste material to the refinery for metal recovery, or
dispose of in accordance with local and national regulations. 聽
14. TRANSPORT INFORMATION
Not restricted.
15. REGULATORY INFORMATION
2311313
EINECS Number
None.
Additional Information
16. OTHER INFORMATION
30 July 1999
MSDS first issued
14 September 2000
MSDS data revised
This information relates only to the specific material designated and may not be valid for such material used in combination
with any other materials or in any process. Such information is given in good faith, being based on the latest information
available to Johnson Matthey PLC and is to the best of Johnson Matthey PLC's knowledge and belief, accurate and reliable at
the time of preparation. However, no representation, warranty or guarantee is made as to the accuracy, liability or
completness and Johnson Matthey PLC assumes no responsibility therefore, and disclaims any liability for any loss, damage
or injury howsoever arising (including in respect of any claim brought by any third party) incurred using this information. The
product is supplied on thecondition that the user accepts responsibility to satisfy himself as to the suitability and completness
of such information for his own particular use. Freedom from patent or any other proprietary rights of any third party must not
be assumed. 聽
Reference Sources
REFERENCE SOURCES
Registry of Toxic Effects of Chemical Substances. Published by the National Institute of Occupational Safety and Health.
USA.
Oil and Hazardous Materials Technical Assistance Data System. Published by The Office of Water and Waste Management.
Environmental Protection Agency USA.
Chemical Hazard Response Information System. Published by US Coast Guard.
NIOSHTIC Occupational Safety and Health database. Published by the National Institute of Occupational Safety and Health.
USA.
HSELINE Health and Safety Executive Library and Information Service. Published by the Health and Safety Executive. UK.
CISDOC International Occupational Safety and Health Database. Published by the International Labour Organisation.
Geneva.
RISKLINE. Published by the National Chemical Inspectorate. Sweden.
TOXLINE. Published by the Chemical Abstracts Service. USA.
Developmental and Reproductive Toxicology. The National Library of Medicine. USA.
Toxicity, Bibliography. The National Library of Medicine. USA.
Environmental Mutagen Information. Oak Ridge National Laboratory. USA.
Environmental Teratology Information. Oak Ridge National Laboratory. USA
BIOSIS. Published by Biological Abstracts Inc. USA.
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Johnson Matthey
SILVER FLAKE
102503 2.00 EC Current 14.09.2000
16. OTHER INFORMATION (continued)
Epidemiology Information. The Food and Drug Administration. USA
International Pharmaceutical Abstracts. The American Society of Hospital Pharmacists. USA.
Hazardous Materials Technical Center Abstracts. Department of the Army, Hazardous Materials Technical Center. USA.
Toxicology Document and Data Depository. National Technical Information Service. USA.
Federal Research in Progress. National Technical Information Service. USA.
Toxicology Research Projects. National Institutes of Health. USA
Toxic Substances Control Act Test Submissions. The Environmental Protection Agency. USA.
Patty's Industrial Hygiene and Toxicology 3rd edition.
Handbook on the Toxicology of Metals. Friberg, Nordberg and Vouk 2nd edition.
Bretherick's Handbook of Reactive Chemical Hazards. 5th edition.
Grant's Toxicology of the Eye. 3rd edition.
Merck Index 10th edition.
Handbook on Toxicology of Inorganic Compounds. Seiler, Sigel and Sigel.
Catalog of Teratogenic Agents. Shepard. 4th edition
Reproductive Hazards of Industrial Chemicals. Barlow and Sullivan.
Royal Society of Chemistry, Chemical Safety Data Sheets.
National Sales Offices
Johnson Matthey PLC,33 Jeffreys Road, Brimsdown, ENFIELD, Middlesex EN3 7PW, United Kingdom, Tel:- 0208 8048111,
Fax:- 0208 8041918
S.A.Johnson Matthey N.V., 8 Avenue de Bale, 1140 BRUSSEL, Belgi毛 / Belgique, Tel:- 2 729 0711, Fax:- 2 216 9061
Johnson Matthey A/S, Frederikssundsvej 274 D, Br垄nsh垄j 2700, Denmark, Tel:- 38 89 62 00, Fax:- 38 89 62 01
Johnson Matthey PLC, Unit 1 - 2, Blanchardstown Business Centre, Clonsilla Road, Blanchardstown, Dublin 15, Republic of
Ireland, Tel:- 1 820 7722, Fax:- 1 820 7733
Johnson Matthey GmbH, Alfa Products, Zeppelinstrasse 7, Postfach 6540, D-7500 KARLSRUHE 1, Deutschland, Tel:- 721
840070, Fax:- 721 849674
Johnson Matthey SA, 13 Rue de la Perdrix, Z1 PARIS Nord II, BP 50240, 95996 Roissy, CDG Cedix France, Tel:- 1 48 63 22
99, Fax:- 1 48 63 27 02
Oy Johnson Matthey A.B, Kielotie 7A 4KRS, 01300 BANTAA, Soumi, Tel:- 08574 800, Fax:- 08574 807
Johnson Matthey A.B., Victor Hasselblads gata 8, S-421 31 V盲stra Fr枚lunda, Sverige, Tel:- 031 891390, Fax:- 31 477795
Johnson Matthey & Co G.m.b.H, Steckhovengasse 12, 1132 WIEN, 脰sterreich, Tel:- 877 98 90, Fax:- 877 98 933
Johnson Matthey & Brandenberger A.G., Glattalstrasse 18, CH-8052 ZURICH, Switzerland, Tel:- 01 302 4488, Fax:- 01 302
4701
Johnson Matthey GmbH, Otto-Volger-Stra脽e 9B, D-65843 Sulzbach/Ts, Deutschland, Tel:- (0 61 96)70 38-21, Fax:- (0 61 96)
70 38 12
17. 000000000
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