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Zip and Tray Developer SDS page 3 of 4 rev. May 1, 2015 Engineering Controls Control airborne concentrations below the exposure limits. Use only with adequate ventilation. Local exhaust ventilation may be necessary. Respiratory Protection When respiratory protection is required, use a NIOSH approved air-purifying respirator equipped with a combination high efficiency filter and organic vapors canister. For emergency and other conditions where exposure limits may be greatly exceeded, use an approved positive-pressure, self-contained breathing apparatus or positive-pressure air line with auxiliary self-contained air supply. Skin Protection For brief contact, no precautions other than clean body-covering clothing should be needed. Use chemical resistant gloves, such as nitrile or polychloroprene. Eye Protection Use safety glasses with side shields or, preferably, chemical goggles. 9. Physical and Chemical Properties Boiling Point >100ºC Specific Gravity 1.15 1.20 % Volatiles 78% (water) Solubility in Water Soluble in all proportions pH 11.3 11.7 Odor Odorless Form Liquid Color Pale amber VOC 60g/L 10. Stability and Reactivity Chemical Stability Stable under normal storage conditions Conditions to Avoid Do not mix with strong acids Incompatibility Strong acids Hazardous Decomposition Products None Hazardous Polymerization Will not occur 11. Toxicological Information Results of component toxicity test performed: Data for Sodium hydroxide (CAS 1310-73-2) Acute Toxicity Data: Oral LD50: >500 mg/kg (rabbit). Dermal LD50: >2 g/kg (rabbit). Inhalation LC50: >40 mg/cubic meter/1 hour (rat). Skin irritation: Causes burns to eyes and skin. Data for Sodium sulphite (CAS 7757-83-7) Acute Toxicity Data: Oral (Rat) LD50: >1600 mg/Kg. Skin irritation: none. Eye irritation: slight; washing palliative. Can cause allergic reactions (headaches, difficulty in breathing, rapid heart rate and anaphylaxis) to susceptible individuals. Data for hydroquinone (CAS 123-31-9) Acute Toxicity Data: Oral LD50 (rat): 400 mg/kg. Oral LD50 (male rat): 400 mg/kg. Oral LD50 (male mouse): 100 - 200 mg/kg. Dermal LD50 (guinea pig): > 1,000 mg/kg. Dermal absorption rate: 1.1 micrograms (s) / cm 2 / hour. Skin irritation: slight. Skin Sensitization: positive. Eye irritation: moderate. Mutagenicity/Genotoxicity Data: Salmonella typhimurium assay (Ames test): negative (in presence and absence of Chromosomal aberration assay: negative (in absence of activation) Chromosomal aberration assay: positive (in presence of activation) Sister chromatid exchange (SCE) assay: positive (in presence and absence of activation) Definitions for the following section(s): LOEL =lowest-observed-effect level, LOAEL = lowest observed-adverse-effect, NOAEL = no observed-adverse-effect level, NOEL =no-observed- effect level. Repeated dose toxicity: Dermal (17-day, rat): NOEL; 3800 mg/kg/day. Dermal (17-day): LOEL (Lowest observable effect level); 4800 mg/kg/day. Developmental Toxicity Data: Oral (female rabbit): NOEL for developmental toxicity; 25mg/kg/day. There is insufficient evidence for classifying hydroquinone as a suspected carcinogenic or mutagenic substance in humans. No increases in cancer rates were observed in an epidemiology study which looked at mortality among more than 800 persons employed primarily in the manufacture of hydroquinone. Carcinogenicity studies in animals were inconclusive. Rats and mice were given hydroquinone by stomach tube or at high concentrations in the diet. Responses were not consistent across route of exposure, species or sex. The International Agency for Research on Cancer (IARC) has classified hydroquinone in Group 3, i.e., "not classifiable" as a carcinogen. Hydroquinone is generally negative in bacterial mutagenicity tests; there is evidence for the clastogenicity (chromosome breakage) of hydroquinone in vivo and in vitro. The relevance of chromosomal effects in test animals in predicting human risk is unclear. Human experience: See listed components above. This product does not contain any compounds listed by NTP or IARC or regulated by OSHA as a carcinogen.