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Dyna Plate AG Postfach 536 CH 6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet DYNA ACT 500 20/04/13 1 / 7 1. Identification of substances Product details DYNA ACT 500 MICROETCH Trade name : DYNA ACT 500 MICROETCH Article number: Manufacturer/Supplier: DYNA PLATE AG Postfach 536 CH-6032 Emmen Tel. 041 - 280 06 33 Fax 041 - 280 06 44 Emergency information: DYNA PLATE AG Tel. 041 - 280 06 33 Contact person: Mr. R. Krieger 2. Composition/Data on components: 43 % POTASSIUM PEROXYMONOSULFATE 23 % POTASSIUM BISULFATE Chemical characterization 29 % POTASSIUM SULFATE Description: 3% POTASSIUM PEROXYDISULFATE Watery solution of an alkyl sulfate. 2% MAGNESIUM CARBONATE Dangerous components: 3. Hazards identification Potential Health Effects Dyna act 500 is a skin and eye corrosive, and a nose and throat irritant. May cause allergic skin reactions in sensitive individuals. Ingestion may cause inflammation and damage to the lining of the stomach, resulting in bleeding. HUMAN HEALTH EFFECTS: Skin contact with aqueous solutions or the dry powder upon contact with moisture or perspiration may cause skin burns or ulceration; temporary body hair loss may occur in contacted areas. Skin contact with the product may cause allergic skin reactions in sensitive individuals. Human patch tests with the product diluted in water at concentrations up to 150 ppm did not cause allergic skin reaction. Eye contact may cause eye corrosion or ulceration. Severe eye damage may result if not immediately treated (see First Aid Measures). Inhalation may cause nose bleeds and irritation of the upper respiratory passages with coughing and discomfort. Ingestion may cause gastritis possibly progressing to necrosis or hemorrhage. Individuals with preexisting diseases of the skin or gastrointestinal tract may have increased susceptibility to the toxicity of excessive exposures. Carcinogenicity Information 6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet 54384251.doc 20/04/13 2 / 7 4. 5. None of the components present in this material at concentrations equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH as a carcinogen. First aid measures First Aid INHALATION If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Call a physician. SKIN CONTACT In case of contact, immediately flush skin with plenty of water for at least 15 minutes, while removing contaminated clothing and shoes. Call a physician. Wash contaminated clothing before reuse. EYE CONTACT In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Call a physician. INGESTION If swallowed, do not induce vomiting. Immediately give 2 glasses of water. Never give anything by mouth to an unconscious person. Call a physician. Fire fighting measures Flammable Properties Will not burn. Fire and Explosion Hazards: Improper storage of large masses of \(See section on \cause decomposition with liberation of heat and oxygen; ignition of oxidizable material if present may occur. Extinguishing Media Water. Do not use carbon dioxide or other gas-filled fire extinguishers; they will have no effect on decomposing persulfates. Fire Fighting Instructions Will release oxygen when heated, intensifying a fire. Acidic mist may be present; self contained breathing apparatus should be used. 6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet 54384251.doc 20/04/13 3 / 7 6. 7. 8. Accidental release measures Safeguards (Personnel) NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL) sections before proceeding with clean-up. Use appropriate PERSONAL PROTECTIVE EQUIPMENT during clean-up. # Accidental Release Measures Sweep up solid. Flush liquid spills with low pressure water. (See disposal considerations Handling and storage Handling (Personnel) Do not inhale. Do not get in eyes, on skin or clothing. Wash thoroughly after handling. Wash clothing after use. Storage Store solid Dyna act 500 in a cool, dry, well-ventilated area away from heat sources such as light fixtures or space heaters. Replace the lid on the plastic pails when they are not in use to prevent contamination and extend shelf life. Pallets of 25 kg. bags can be stacked. Leave open space on all sides of each pallet to provide ventilation. See local fire codes for allowable limits. Bulk Bags should be stored on pallets; if stacked use pyramid style, no more than 2 pallets high. Closely stacked bags should not exceed a 4 ft. (1.2m) cube. Keep packages dry. Do not store with combustible materials or with incompatibles (see \Exposure controls and personal protection Engineering Controls Use sufficient ventilation to keep employee exposure below recommended limits. Personal Protective Equipment FOR EXPOSURE TO DRY MATERIAL: Eye/Face Protection: Wear safety glasses or coverall chemical splash goggles. Respirators: A NIOSH approved air-purifying respirator with an Appropriate particulate cartridge or canister may be permissible under certain circumstances where airborne concentrations are expected to exceed exposure limits. Protection provided by air-purifying respirators is limited. Use a positive pressure air-supplied respirator if there is any potential for an uncontrolled release, exposure levels are not known, or any other circumstances where air-purifying respirators may not provide adequate protection. Protective Clothing: Where there is potential for skin contact have available and wear as appropriate impervious gloves, apron, pants and jacket. 6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet 54384251.doc 20/04/13 4 / 7 FOR EXPOSURE TO SOLUTIONS: Eye/Face Protection: Wear coverall chemical splash goggles. Additionally wear a face shield where the possibility exists for face contact due to splashing or spraying of material. Respirators: A NIOSH approved air-purifying respirator with an appropriate particulate cartridge or canister may be permissible under certain circumstances where airborne concentrations are expected to exceed exposure limits. Protection provided by air-purifying respirators is limited. Use a positive pressure air-supplied respirator if there is any potential for an uncontrolled release, exposure levels are not known, or any other circumstances where air-purifying respirators may not provide adequate protection. Protective Clothing: Where there is potential for skin contact, wear impervious clothing such as gloves, apron, boots or whole bodysuit. Exposure Guidelines Exposure Limits DYNA ACT-500 PEL (OSHA) : Particulates (Not Otherwise Regulated) 15 mg/m3, 8 Hr. TWA, total dust 5 mg/m3, 8 Hr. TWA, respirable dust TLV (ACGIH) : None Established AEL * (DuPont) : 1 mg/m3, total dust, 8 & 12 Hr. TWA Other Applicable Exposure Limits POTASSIUM SULFATE PEL (OSHA) : None Established TLV (ACGIH) : None Established AEL * (DuPont) : 10 mg/m3, 8 Hr. TWA POTASSIUM PEROXYDISULFATE TLV (ACGIH) : 0.1 mg/m3, 8 Hr. TWA MAGNESIUM CARBONATE PEL (OSHA) : 15 mg/m3, total dust, 8 Hr. TWA 5 mg/m3, respirable dust, 8 Hr. TWA TLV (ACGIH) : 10 mg/m3, total dust, 8 Hr. TWA AEL * (DuPont) : None Established * AEL is DuPont’s Acceptable Exposure Limit. Where governmentally imposed occupational exposure limits which are lower than the AEL are in effect, such limits shall take precedence. 9. Physical and chemical properties: #Physical Data Boiling Point : @ 760 mm Hg Decomposes Vapor Pressure : Nil Vapor Density : Not volatile Melting Point : Decomposes 6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet 54384251.doc 20/04/13 5 / 7 Evaporation Rate : (Butyl acetate = 1) Not volatile Solubility in Water : 25.6 WT% @ 20 C (68 F) Ph : 1% Solution = 2.3; 3% solution = 2.0 10% Solution = 1.6 Odor : Odorless Form : Granular; free flowing solid Color : White Specific Gravity : 1.1-1.4 10. Stability and reactivity Chemical Stability Stable when handled and stored as indicated. # Incompatibility with Other Materials The mixture of Dyna act 500 with compounds containing halides oractive halogens (bromine, chlorine, iodine) can cause the release of the respective halogen gas, if moisture ispresent. Avoid these gases (bromine and chlorine) because they are very irritating to eyes and lungs even at low concentrations. Never mix concentrated Dyna act 500 with dry orconcentrated bromine-containing chemicals, such as bromates, bromides, or any concentrated bromine pool chemicals. Mixing concentrated Dyna act 500 with dry or concentratied chlorine-containing chemicals, such as hypochlorites (\dichloroisocyanurate (dichlor), sodium triisocyanurate (trichlor) or with sodium chloride (salt), may cause the release of chlorine gas. Mixing with cyanides can cause release of hydrogen cyanide gas. Mixing with heavy metal salts such as those of cobalt, nickel, copper, or manganese can cause decomposition with release of oxygen and heat. Decomposition Decomposes when heated or dampened, releasing oxygen and heat of decomposition. Polymerization Polymerization will not occur 11. Toxicological information Animal Data Inhalation 4 hour LC50 : > 5 mg/L in rats Skin absorption LD50 : > 11,000 mg/kg in rabbits Oral LD50 : 200 - 2000 mg/kg in rats Dyna act 500 is a severe skin and eye irritant, but is not a skin sensitizer in animals. Single exposures by inhalation to Dyna act 500 produced nonspecific effects such as weight loss and slight respiratory irritation. Repeated inhalation exposures produced eye irritation and reversible corneal damage.

6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet 54384251.doc 20/04/13 6 / 7 Administration of large single ingestion doses of Dyna act 500 produced nonspecific effects such as weight loss and irritation, as well as gastric ulceration, necrosis and hemorrhage. Repeated administration of Dyna act 500 at a combined dosage of 1000/600 mg/kg for 13 weeks caused pathological changes of the stomach, body weight loss, gasping, noisy respiration, and hunched posture. There were no toxic effects noted at 20 or 200 mg/kg and the no-observed-adverse-effect-level (NOAEL) is considered to be 200 mg/kg. Tests for carcinogenic activity, developmental and reproductive toxicity have not been performed. Dyna act 500 did not produce genetic damage in bacterial cell cultures. Dyna act 500 did produce genetic damage in mammalian cell cultures. It did not produce genetic damage in tests on animals, but showed some evidence of bone marrow cell toxicity in female mice. 12. Ecological information Ecotoxicological Information Aquatic Toxicity 96 hour LC50 - Rainbow trout: 53 mg/L 48 hour EC50 - Daphnia magna: 3.5 mg/L 13. Disposal considerations Waste Disposal Comply with Federal, State, and local regulations. Solutions greater than 3% by weight have a pH < 2.0, and may be a RCRA hazardous waste upon disposal due to the acidic pH characteristic of the solution. If approved, flush to sewer or waste treatment plant. Large quantities should be neutralized with soda ash. 14. Transport information Shipping Information DOT/IMO Proper Shipping Name : CORROSIVE SOLID, ACIDIC, INORGANIC, N.O.S. (MONOPERSULFATE COMPOUND) Hazard Class : 8 UN No. : 3260 DOT/IMO Label : CORROSIVE Packing Group : II Shipping Containers: Multiwall Bags Fiber Pack Drums Bulk Bags 15. Regulatory information 6032 Emmen EU-Material Safety Data Sheet According to 91 / 155 EC File Identification Printing date Page : : : : Data Sheet 54384251.doc 20/04/13 7 / 7 U.S. Federal Regulations TSCA Inventory Status : Reported/Included. TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312 Acute : Yes Chronic : No Fire : No Reactivity : No Pressure : No LISTS: SARA Extremely Hazardous Substance - No CERCLA Hazardous Material - No SARA Toxic Chemical - No CANADA PEST CONTROL PRODUCTS ACT Registration Number 23137 Canadian Regulations CLASS C Oxidizing Material CLASS D Division 2 Subdivision B - Toxic Material. Skin or Eye Irritant. CLASS E Corrosive Material 16. Other information: NFPA, NPCA-HMIS NPCA-HMIS Rating Health : 3 Flammability : 0 Reactivity : 1 Personal Protection rating to be supplied by user depending on use conditions. Additional Information For further information, see \Compound Data Sheet. Environment protection department. Contact: DYNA PLATE AG Tel 0041 41 - 280 06 33

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