17
Code 1:
(Acids): Small volumes may be flushed down the drain with plenty of water. Larger volumes or
concentrated solutions should be neutralized first by pouring slowly into a large volume of an agitated
solution of Soda Ash and Slaked Lime or Sodium Bicarbonate before flushing down the drain. Spills should
be covered with Sodium Bicarbonate. Add water to form a slurry. Scoop up, wash down into drain with
plenty of excess water.
Code 2:
(Bases): Small volumes may be flushed down the drain with plenty of water. Larger volumes or
strong solutions should be poured slowly into a large container of water and neutralized with 1:1
Hydrochloric Acid (use No. 1073 Litmus Paper to check if neutral). Spills should be flushed with plenty of
water, mopped up, and neutralized with 6 Molar Hydrochloric Acid before flushing down the drain with
plenty of water.
Code 3:
(Chloroform): Do NOT flush down drain. Store large volumes for disposal by authorized salvager.
Absorb small volumes or spills in vermiculite. Add Soda Ash and Slaked Lime. When saturated, burn in a
safe area as solid waste.
Code 4:
(Compounds Containing MERCURY SALTS): Do NOT flush down drain. Store for disposal by autho-
rized salvager. Mop up spills completely using plenty of water. May be converted to the soluble nitrate.
Adjust acidity and precipitate as mercuric sulfide. Wash and dry the precipitate. Ship back to supplier.
Code 5:
(All other Reagents): Small volumes may be flushed down the drain with plenty of water in accor-
dance with local regulations. Spill should be flushed with plenty of water, mopped up and flushed down the
drain.
Содержание 942-095
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