Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

JMM SILVERFLO 55

NFPA

PRODUCT USE

Used as a silver brazing alloy.

SYNONYMS

Silverflo, "Silverflo 55", "silver brazing alloy", "brazing alloy", alloy

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

Very toxic to aquatic organisms, may cause long- term adverse effects in the
aquatic environment.

POTENTIAL HEALTH EFFECTS

ACUTE HEALTH EFFECTS

SWALLOWED

  Although ingestion is not thought to produce harmful effects, the material may still be damaging to the health of the individual following ingestion, especially where pre-  existing organ (e.g. liver, kidney) damage is evident. Present definitions of harmful or toxic substances are generally based on doses producing mortality (death) rather than those producing morbidity (disease, ill-health). Gastrointestinal tract discomfort may produce nausea and vomiting. In an occupational setting however, ingestion of insignificant quantities is not thought to be cause for concern.  

EYE

  There is some evidence to suggest that this material can causeeye irritation and damage in some persons.  

SKIN

  The material is not thought to produce adverse health effects or skin irritation following contact (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable gloves be used in an occupational setting.  

INHALED

  Inhalation may produce health damage*.  There is some evidence to suggest that this material, if inhaled, can irritate the throat and lungs of some persons.  

CHRONIC HEALTH EFFECTS

  Primary routes of exposure are by skin contact/absorption and  inhalation of metal fumes on overheating. Excessive fumes of copper can  cause metal fume fever and symptoms are similar to those of influenza and  often appear after a latent period of up to 10 hours. The symptoms will  normally disappear after 24 hours with rest. Zinc oxide fumes can be  irritating to the upper respiratory system and can cause metal fume fever.  Excessive inhalation of fumes or dust can produce inflammation of  respiratory tract and lung tissue, causing pulmonary oedema, bronchitis and  pneumonitis. Chronic exposure can produce kidney damage and emphysema.  Acute overexposure can be fatal.                    [Source: CCINFO]  Removal of contact lenses after an eye injury should only be undertaken by  skilled personnel.