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MSDS Material Safety Data Sheet
CAS

20667-12-3

File Name: jmcatalysts_com---498.asp
                                          Johnson Matthey
SILVER(I)OXIDE
014000 3.00 EC Current 14.09.2000

1. PRODUCT AND COMPANY IDENTIFICATION
014000
Product Code
SILVER(I)OXIDE
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
100% Silver(I)Oxide, Ag O
Composition
1
JM Version Number
25/11/91
Date of First Issue

2. COMPOSITION/INFORMATION ON THE COMPONENTS
SILVER(I)OXIDE
Product Formal Name
.Not Specified
Product Chemical Family
20667-12-3
CAS Number

3. HAZARD IDENTIFICATION
Silver(I)oxide is corrosive to the eyes, being a positive irritant even after
rinsing the eye following 30 seconds contact. Non-irritant to the skin. As with
other silver compounds, absorbtion over a long period may cause "Argyria",
a blue/grey discolouration of various tissues. Industrial argyria may be local,
involving the formation of blue/grey particles in the skin and conjunctivae, or
generalised, which appears early on the face, spreading gradually to the ears
and neck, with fairly early invovement of the hands. This is only normally
manifest after many years of gross over-exposure. Ingestion will cause
abdominal pain and vomiting. 聽 聽 聽

4. FIRST AID MEASURES
Inhalation of the dust may lead to irritation of the respiratory tract, with
First Aid
coughing and difficulty in breathing. Ingestion may cause irritation to the
mouth and throat, abdominal pain and vomiting. Contact with the eyes will be
painful at all levels of exposure and may lead to blindness in severe cases.
Silver(I)oxide is not a skin irritant. However, it may damage the skin as a
result of its abrasive properties.
First-aid treatment for severe cases.

remove from exposure and allow to rest in fresh air. Seek medical advice if
First Aid - Inhalation
symptoms persist. 聽
rinse mouth with soap and water and give water or milk to drink. Seek
First Aid - Ingestion
medical advice if symptoms persist.
irrigate with water or isotonic saline solution for 15 minutes. Seek medical
First Aid - Eyes
attention urgently.
remove contaminated clothing and wash skin with soap and water. 聽
First Aid - Skin

5. FIRE FIGHTING MEASURES
Although the material is not flammable, it will assist a fire. Wear self-
contained breathing apparatus and personnal protective equipment. Use any
extinguisher suitable for the surrounding fire. 聽

6. ACCIDENTAL RELEASE MEASURES

\ Page 1
Johnson Matthey
SILVER(I)OXIDE
014000 3.00 EC Current 14.09.2000

6. ACCIDENTAL RELEASE MEASURES (continued)

Wearing gloves and eye protection, sweep up the spillage and store in sealed
containers ready for disposal. Avoid mixing with flammable materials. 聽

7. HANDLING AND STORAGE
Local exhaust extraction should be used and protective clothing, including
Handling (JM)
gloves and eye protection should be worn. Do not eat, drink, smoke or apply
cosmetics whilst handling. 聽
Store in an air-tight container in a cool, dry place. 聽
Storage (JM)

8. EXPOSURE CONTROLS/PERSONAL PROTECTION
UK HSE OES for silver compounds (as Ag) - 0.01 mg/m鈥?
USA ACGIH TLV for silver, soluble compounds (as Ag) - 0.01 mg/m鈥?
German MAK for silver, measured as total dust - 0.01 mg/m鈥?

If a risk of inhalation exists, users should wear an appropriate filter type
respirator. Suitable eye protection, such as goggles, should be worn. 聽 聽 聽 聽 聽

9. PHYSICAL AND CHEMICAL PROPERTIES
brown-black powder
Appearance
odourless
Odour
not applicable
pH
not applicable.
Boiling Range/Point
decomposes on heating above 230掳C, giving oxygen.
Melting Point
not applicable.
Flash Point
not flammable.
Flammability
Auto-flammability not applicable.
not explosive.
Explosive Properties
oxidising material
Oxidising Properties
no data.
Vapour Pressure
7.14 gm/cc at 20掳C.
Density
insoluble in water. Very soluble in nitric acid, liquid ammonia and in
Solubility in Water
potassium cyanide solution. Less soluble in sodium hydroxide or aqueous
ammonia solutions.
Insoluble in ethanol. 聽 聽 聽 聽
no data.
Partition Coefficient
聽聽聽聽聽聽聽
General

10. STABILITY AND REACTIVITY
The reaction with reducing materials may be explosive. Contact with
ammonia may produce explosive compounds, ammoniacal silver solutions
should never be stored. On heating, silver(I)oxide decomposes to metallic
silver and oxygen. At 250 - 300掳C, the decomposition is rapid. Carbon
monoxide is exothermically oxidised over silver oxide, and the temperature
may attain 300掳C. Mixtures of gold(III)sulfide, antimony sulfide, mercury
sulfide, selenium, sulfur or phosphorus ignite on grinding with the oxide. A
mixture with selenium disulfide may ignite under impact. Silver may have a
catalytic effect on the oxidation of some compounds. When processing silver
and its salts, care should be taken to avoid the formation of explosive
compounds, such as the nitride, fulminate, oxalate or tartrate. 聽 聽

11. TOXICOLOGICAL INFORMATION

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Johnson Matthey
SILVER(I)OXIDE
014000 3.00 EC Current 14.09.2000

11. TOXICOLOGICAL INFORMATION (continued)
LD50 (oral-rat) 2820 mg/kg.


12. ECOLOGICAL INFORMATION
The effect of silver(I)oxide on aquatic life is unknown, but is thought to be low
because of the insoluble nature of the material. It will react with naturally
occurring chlorides and precipitate harmless silver chloride. 聽

13. DISPOSAL
Return accumulated waste material to the refinery for precious metal
recovery, or dispose of in accordance with local and national regulations. 聽

14. TRANSPORT INFORMATION
U.N. No. 1479, Class 5.1, Packing Group II
ADR 2501 27(b)
Proper Shipping Name - Oxidising Substance n.o.s. "Silver Oxide". 聽 聽

15. REGULATORY INFORMATION
Oxidizing
Labelling Information

Irritant


R8 Contact with combustible material may cause fire.
R phrases
R41 Risk of serious damage to eyes.
S17 Keep away from combustible material.
S phrases
S26 In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
2439571
EINECS Number
O - Oxidizing
EC Annex I Classification
Xi - Irritant

16. OTHER INFORMATION
29 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.

\ Page 3
Johnson Matthey
SILVER(I)OXIDE
014000 3.00 EC Current 14.09.2000

16. OTHER INFORMATION (continued)
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.
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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