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MONSANTO Material Safety Data <br />ROUNDUP® PRO Herbicide Page 4 of 6 <br />MSDS No: 500012732 5/26/99 <br />AIRBORNE EXPOSURE LIMITS: <br />PRODUCT/COMPONENT OSHA PEL ACGIH TLV <br />ROUNDUP® PRO Herbicide Not established Not established <br />OSHA and ACGIH have not established specific exposure limits for this material. However, OSHA and ACGIH <br />have established limits for particulates not otherwise regulated (PNOR) and particulates not otherwise classified <br />(PNOC) respectively, which are the least stringent exposure limits applicable to dusts. <br />OSHA PEL ACGIH TLV <br />I S mg/m3 (total dust) 8-hr TWA 10 mg/m3 (inhalable) 8-hr TWA <br />5 mg/m3 (respirable) 8-hr TWA 3 mg/m3 (respirable) 8-hr TWA <br />9. PHYSICAL AND CHEMICAL PROPERTIES <br />Appearance: clear, viscous amber-colored solution <br />Odor: practically odorless to slight amine-like odor <br />pH: 4.99 (I % solut ion) <br />Specific Gravity: L17(Water=l) <br />NOTE: These physical data are typical values based on material tested but may vary from sample to sample. Typical values <br />should not be construed as a guaranteed analysis of any specific lot or as specifications (or the product. <br />10. STABILITY AND REACTIVITY <br />STABILITY: Product is stable under normal conditions of storage and handling. Store in a cool, well ventilated <br />place away from foodstuffs, reducing agents and acids. <br />MATERIALS TO AVOID: Spray solutions of [his product should be mixed, stored or applied using only stainless <br />steel, aluminum, fiberglass, plastic or plastic-lined containers. <br />DO NOT MIX, STORE OR APPLY THIS PRODUCT OR SPRAY SOLUTIONS OF THIS PRODUCT IN <br />GALVANIZED OR UNLINED STEEL (EXCEPT STAINLESS STEEL) CONTAINERS OR SPRAY TANKS. <br />This product or spray solutions of this product react with such containers and tanks to produce hydrogen gas which <br />may forth a highly combustible gas mixture. This gas mixture could Flash or explode, causing serious personal <br />injury, if ignited by open flame, spark, welder's torch, lighted cigarette or other ignition source. <br />HAZARDOUS DECOMPOSITION PRODUCTS: None <br />HAZARDOUS POLYMERIZATION: Does not occur. This product can react with caustic (basic) materials to <br />liberate heat. This is not a polymerization but rather a chemical neutralization in an acid base reaction. <br />I I. TOXICOLOGICAL INFORMATION <br />Data from laboratory studies conducted by Monsanto with ROUNDUP®PRO herbicide are summarized below: <br />Single exposure (acute) studies indicate: <br />Oral - FIFRA Category IV <br />Dermal - FIFRA Category IV <br />Inhalation - FIFRA Category IV; Not DOT poisonous <br />Eye Irritation - FIFRA Category 111 <br />