MARC 331 COOLING TOWER SCALE REMOVER

SECTION 2: Hazards identification

OSHA EMERGENCY OVERVIEW WARNING This product is a strong acid and causes severe irritation or burns upon contact with the eyes, skin or mucous membranes of the respiratory tract. Inhalation of high levels can cause pulmonary edema (fluid in the lungs) which may be life threatening. Be sure to wear safety glasses and gloves when handling this material .

Principle Routes of Exposure

Inhalation, skin and eye contact, ingestion. TARGET ORGANS: Eyes, skin, respiratory tract, gastrointestinal tract, central nervous system, liver, kidneys, and cardiovascular system, (secondary to burns and circulatory collapse).

OSHA HCS Classification

SKIN IRRITATION: (Category 2) EYE IRRITATION: (Category 2A) ACUTE AQUATIC TOXICITY: (Category 3) CHRONIC AQUATIC TOXICITY: (Category 3)

Signal word

WARNING! Causes skin irritation Causes serious eye irritation. Harmful to aquatic life with long lasting effects.

Precautionary statements

Wash skin thoroughly after handling. Avoid release to the environment. Wear protective gloves/eye protection/face protection. IF ON SKIN Wash with plenty of soap and water. If skin irritation occurs get medical advice/attention. IF IN EYES Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/container to an approved waste disposal plant. ACUTE EFFECTS: INHALATION: Inhalation of particulates can cause severe irritation and burns of the nose and respiratory tract. Inhalation of high levels can cause pulmonary edema (fluid in the lungs) which may be delayed up to 48 hours. EYE: Severe irritation and burns. Scarring may be permanent. SKIN Severe irritation and burns. Scarring may be permanent. INGESTION The mouth and esophagus may appear grayish-white progressing to black with a shrunken and wrinkled texture. Esophageal or stomach perforation may occur. Circulatory collapse occurs in extreme cases with clammy skin, weak and rapid pulse, shallow respiration and scanty urine. Uncorrected circulatory collapse can cause kidney failure and ischemic (localized tissue anemia due to decreased inflow of arterial blood) lesions of the heart and liver. Death is generally due to circulatory collapse or asphyxiation due to glottis edema (fluid and swelling in the epiglottis which causes insufficient oxygen to reach the windpipe). The estimated human lethal dose is 0.5 to 5 g/kg (1oz to 1 pint for a 70 kg/150 lb person). CARCINOGENICITY: IARC, NTP, and OSHA do not list sulfamic acid as a carcinogen.

Medical Conditions Generally Aggravated by Exposure

None reported

Potential chronic health

None reported. SPECIFIC TREATMENT: (See supplemental first aid instructions on this label).

Potential health effects

See Section 11 for more information.