SDS

SDS: Brazing Rod USF
October 1, 2014
Page 6 of 8
SECTION 10: STABILITY AND REACTIVITY
GENERAL: These items are only intended for brazing application.
STABILITY: Product is chemically stable and non-reactive.
CONDITIONS TO AVOID: Keep product away from heat and moisture.
MATERIALS TO AVOID: Non-reactive.
HAZARDOUS POLYMERIZATION: Will not occur.
REACTIVITY: None.
HAZARDOUS DECOMPOSITION OR BY-PRODUCTS: Fumes can be dangerous to your health. See Section 11
In other countries the exposure limits listed in Section 3 may be different and the appropriate country standards should be used.
SECTION 11: TOXICOLOGICAL INFORMATION
Threshold Limit Value: The ACGIH recommended general limit for welding fume NOS (not otherwise specified) is 5 mg/m³.
The ACGIH 1999 preface states: "The TLV-TWA should be used as guides in the control of health hazards and should not be used
as firm lines between safe and dangerous concentrations." See Section 8 for specific fume constituents that may modify the TLV.
Brazing/welding vapours and fumes from brazing/welding may cause metal fume fever. Symptoms can appear 4 to 12 hours after.
(headache, dizziness, dryness, cough, nausea and fever).
ACUTE TOXICITY: Very toxic by inhalation.
SHORT TERM (ACUTE) OVEREXPOSURE: Copper and zinc fumes produce METAL FUME FEVER which may result in
severe tracheobronchitis, pneumonitis, pulmonary edema (throat dryness, cough, headache, vomiting, chest pains, and chills).
Typically metal fume fever begins four to twelve hours after sufficient exposure to freshly formed fumes. First symptoms are a
metallic taste, dryness, and irritation of the throat. Cough and shortness of breath may occur along with a headache, fatigue, nausea,
vomiting, diarrhea, and painful spasms of the limbs. Copper poisoning can result in hemolytic anemia and kidney, liver, and spleen
damage. Excessive inhalation of zinc fumes may produce symptoms known as ZINC SHAKES; an acute self limiting condition
without recognized complications. Symptoms usually disappear within 24 hours. Symptomatic treatment such as bed rest, possibly
aspirin or aspirin-free pain reliever to afford relief from fever and chills. Severe and prolonged overexposure to zinc oxide may
cause pulmonary edema and pneumonia. Fumes may cause respiratory tract and mucous membrane irritation. Symptoms include
nasal discharge and nosebleeds, coughing, sore throat and labored breathing. Severe exposure may cause bronchospasm and
pulmonary edema. Absorption may cause systemic poisoning similar to that which occurs with ingestion. NICKEL, NICKEL
OXIDE - May cause metallic taste, nausea, tightness in chest, fever, and allergic reactions. Overexposure to fumes may result in
discomfort such as dizziness, nausea, or dryness or irritation of nose, throat, or eyes.
CHRONIC TOXICITY: LONG TERM (CHRONIC) OVEREXPOSURE is believed by some investigators to affect
pulmonary functions. Target organs are eyes, skin, and respiratory system. Excessive ZINC intake has been associated with copper
deficiency anemia. Prolonged or excessive exposures may result in argyria, a permanent localized blue-grey discoloration of the
eye, skin, or mucous membranes. Primary route of entry is the respiratory system. NICKEL, NICKEL OXIDE - Long term
overexposure to nickel products may cause lung fibrosis or pneumoconiosis. Symptoms of over-exposure to copper fumes include
irritation to the eyes, upper respiratory system, metal fume fever, chills, muscle aches, nausea, fever, dry throat, cough, lassitude
(weakness, exhaustion), metallic or sweat taste, and discoloration of skin. FUMES AND GASES can be dangerous to your health.
Primary route of entry is inhalation of fumes. Preexisting respiratory or allergic conditions may be aggravated in some individuals.
COPPER may damage the liver, kidney, spleen, pancreas, and brain. Copper poisoning can result in hemolytic anemia and kidney,
liver, and spleen damage. Ingestion of large amounts may be fatal.
Avoid direct inhalation of fumes during heating and use. Monitor fume levels.