SILVER, COPPER, CADMIUM, ZINC
MATERIAL SAFETY DATA SHEET
02/08/00
MSDS PROVIDED BY:
STOODY INDUSTRIAL AND WELDING SUPPLY, INC.
3316 National Ave., San Diego, CA 92113
Phone: (619) 234-6750
MILITARY EMERGENCY RESPONSE NUMBER 1 (800) 851-8061
Washington Alloy Co.
9809 160th St. East
Puyallup, WA 98373
(206) 848-2230
Revised 09/18/96 MSDSSILC
SECTION 1: Product Identification
Trade Names/Synonym: USA 45%, USA 50%, USA 35%, USA 35 CF,, USA 30%, USA 50N, USA 40 NFC, USA 45 CF,
USA 50CF, USA 56 CF, USA 72 CF, USA 54 CF, USA 30CF, USA 40 CF
Chemical Name: Silver, Copper, Cadmium, Zinc
Cas Number: 7440-22-4
Chemical Family: Metal alloys
Chemical Formula: Ag-Cu-Zn-Cd
*This material is in compliance with the Toxic Substances Control Act
SECTION 2: Summary of Hazards
Exposure to fume or dust may cause metal fume fever, conjunctivitis, skin discoloration, respiratory illness, or general
systematic effects associated with fume exposure.
Warning! Cadmium is a human carcinogen: NTP-2, IARC-2A, NIOSH-X
SECTION 3: Hazardous Components
3 3
Exposure limits listed are for Copper fume. Exposure limits fro Copper dust are: PEL=1 mg/m , TLV=1 mg/m . Exposure
3 3
listed for zinc are given as Zinc Oxide fume. Exposure limits for Zinc Oxide dust are: PEL=10 mg/m , TLV=10 mg/m
EXPOSURE LIMITS
Name Cas No. % PEL TLV Other
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ug/m3 ug/m3
Silver 7440-22-4 25-50 10 ug/m 100 10
ug/m3 ug/m3 ug/m3
Cadmium 7440-43-9 2-24 5 5 5
mg/m3 mg/m3 mg/m3
Copper 7440-50-8 15-35 0.1 0.2 0.1
3 3 3
Zinc 7440-66-6 15.5-27.5 5 mg/m 5 mg/m 10 mg/m
Carcinogenicity
Designated By: NPT-2 IARC-2A OSHA Other NIOSH-X
SECTION 4: Chemical and Physical Properties
Boiling Point: NL Vapor Pressure: N/A
Melting Point: 1200F Vapor Density: N/A
Sol. In Water: Insoluble Specific Gravity: 7.0-10.0
pH: N/A Evaporation Rate: N/A
Appearance / Odor: White to yellowish metal, no odor
SIWS PROVIDES MSDS AS A COURTESY. TO ENSURE ACCURATE AND CURRENT DATA, OBTAIN AND USE ONLY MSDS FROM MANUFACTURER
SILVER, COPPER, CADMIUM, ZINC
MATERIAL SAFETY DATA SHEET
SECTION 5: Health Hazard Data & First Aid Procedures
Health Hazard data should be recognized if the material is to be ground or heated as to liberate dust or fume.
Chemical Name Toxicity Data
Silver none none
Cadmium rat-orl 225 mg/kg none
Copper none none
Zinc none none
EYE CONTACT: Dust or fume may cause irritation or conjunctivitis. Flush thoroughly with water. If irritation persists,
seek medical attention.
SKIN CONTACT: Repeated or prolonged skin contact may cause dermatitis and defatting. In case of contact, wash
skin with soap and water. Call a physician if symptoms occur.
SKIN ABSORPTION: Fume may be absorbed through the skin, mucous membranes, and eyes. Metal Fume Fever may
occur. Remove from exposure. Wash thoroughly with water. If condition persists, seek medical
attention.
INHALATION: Excessive or prolonged inhalation may cause metal fume fever. Call a physician if symptoms
occur.
INGESTION: Ingestion of fume or dust is mildly toxic. May cause nausea, vomiting or gastrointestinal distress. If
conditions persist seek medical attention.
CHRONIC EFFECTS
OF OVEREXPOSURE: Exposure to fume may cause chronic respiratory illness. This product contains Cadmium which is a
probable human carcinogen: IARC-2A, NTP-2, EPA-B1, NIOSH-X.
OTHER HEALTH
EFFECTS: Inhalation or ingestion of dust or fume may cause loss of appetite, anemia, malaise, insomnia,
headache, muscle and joint pains, tremors and muscle weakness. High and prolonged exposure
can damage the kidneys, brain, and nervous system.
Medical conditions which may be aggravated by exposure to this product include: Conjunctivitis of
the eye, dermatitis of the skin, asthma and respiratory diseases.
SECTION 6: Exposure Control Measures
Exposure control measure should be adhered to if the material is to be ground or heated as to liberated dust or fumes.
EYE PROTECTION: Safety Glasses are required. Welding goggles for welding operations.
PROTECTIVE GLOVES: Leather gloves for welding or brazing.
RESPIRATORY
PROTECTION: Atmospheric levels should be maintained below the exposure limits listed in Section 3 by
using engineering controls. If no feasible, use NIOSH approved respiratory protection
according to measured exposure levels.
OTHER PROTECTION: If repeated or prolonged skin contact or contamination is likely, protective clothing should be
worn.
VENTILATION: Provide local exhaust ventilation at the source of dust and fumes to maintain airborne levels
below exposure limited in Section 3. Refer to 鈥淚ndustrial Ventilation鈥? by ACGIH for manual
of recommended practices.
PERSONAL HYGIENE/
WORK PRACTICES: Establish good personal hygiene and work practices. Always wash hands and face before
eating, drinking, or smoking. Provide safety shower and eye wash station in work area.
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SIWS PROVIDES MSDS AS A COURTESY. TO ENSURE ACCURATE AND CURRENT DATA, OBTAIN AND USE ONLY MSDS FROM MANUFACTURER
SILVER, COPPER, CADMIUM, ZINC
MATERIAL SAFETY DATA SHEET
SECTION 7: Fire and Explosion Hazard Data
NON-FLAMMABLE:
FLASH POINT
(METHOD USED: none
FLAMMABLE LIMITS: Lower: N/A Upper: N/A
EXTINGUISHING MEDIA: Metal does not burn. Use extinguishing media that is compatible to surrounding material.
FIRE FIGHTING
INSTRUCTIONS: Evacuate enclosed and surrounding areas. If smoke and fumes cannot be avoided, use
proximity suit and self-contained breathing apparatus. Use water spray to cool containers
and disperse vapors. Keep spills away from sources of ignition.
UNUSUAL FIRE AND
EXPLOSION HAZARDS: Prevent high dust concentrations in the atmosphere against electrostatic charges which
could cause an explosion.
SECTION 8 Reactivity Data
STABILITY: This product is stable.
INCOMPATIBILITY: SILVER-acetylene and ethlenimine form explosive compounds with silver. If silver is
treated with nitric acid in the presence of ethyl alcohol, silver fulminate can be formed which
can be detonated. Fine powder and hydrogen peroxide solutions may explode.
Incompatible with oxalic and tartaric acid. Bromoazide explodes on contact with silver foil.
COPPER-ammonium nitrate, bromates, iodates, chlorates, ethylen oxice, hydrazoic acid,
potassium oxide, dimethyl sulfoxide + trichloroacetic, hydrogen peroxide, sodium peroxide,
sodium azide, sulfuric acid, hydrogen sulfide + air, lead azide, and actylenic compounds.
Copper ignites on contact with chlorine, fluorine, chlorine triflouride, and hydrazinium
nitrate.
DECOMPOSITION: Metal fumes / oxides produced from overheating while melting or brazing can be toxic.
HAZARDOUS
POLYMERIZATION: Will not undergo hazardous polymerization.
SECTION 9 Environmental & Disposal Information
GENERAL: CERCLA/SARA requires notification to the appropriate Federal state and local authorities of
releases of hazardous or extremely hazardous quantities equal to or greater than the Reportable
Quantities (RQ鈥檚) in 40 CFR 302.4 and 40 CFR 355.
The Reportable Quantities are listed in section 12. The product has reclamation value.
SARA Title requires submissions of annual reports of releases of toxic chemicals that appear under
statute are listed in Section 12.
SECTION 10: Precautions for Safe Handling, Storage and Use
Use personal protective equipment when working with this product.
SECTION 11: Shipping Information
Not regulated for Transportation Purposes.
SECTION 12: Additional Information
CERCLA Reporting: Silver RQ = 1000#
SARA Title 313 Reporting: Silver and its compounds
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SIWS PROVIDES MSDS AS A COURTESY. TO ENSURE ACCURATE AND CURRENT DATA, OBTAIN AND USE ONLY MSDS FROM MANUFACTURER
SILVER, COPPER, CADMIUM, ZINC
MATERIAL SAFETY DATA SHEET
Washington Alloy requests the users of this product to study this Material Safety Data Sheet (MSDS) and become aware of
product hazards and safety information. To promote safe us of this product a user should (1) notify its employees, agents
and contractors of the information on this MSDS and any product hazards and safety information, (2) furnish this same
information to each of its customers for the product, and (3) request such customers to notify their employees and
customers of the product hazards and safety information. The data contained herein is reliable, but no expressed or implied
warranty is make with regard to the accuracy of such product in combination with any other product. The conditions or
methods of handling, storage, use and disposal of this product are beyond our control and may be beyond our responsibility
and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling,
storage, use or disposal of the product.
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SIWS PROVIDES MSDS AS A COURTESY. TO ENSURE ACCURATE AND CURRENT DATA, OBTAIN AND USE ONLY MSDS FROM MANUFACTURER
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