Plastic Lined Drums

Health and Safety Factors. Malononiirilc is usually available as a solidified melt in plastic-lined drums. Remclting has to he done carefully because spontaneous decomposition can occur at elevated temperatures, particularly above lOO C. in the presence of impurities such as alkalies, ammonium, and zinc sails. Occupational exposure to malononitrile mainly occurs by inhalation of vapors and absorption through the skin. Malononitrile has a recommended workplace exposure limn of 8 mg/m Uses. Malononitrile is extensively used in the life sciences industry The most important products ate vitamin B (thiamine) and bensulfuron-melhyl. a sulfonyl urea herbicide. Most other product uses fall under the. V-containing heterocycles. 

Plastic lined drums with label on outside... 

Aluminum chloride hexahydrate is available in a 28% by weight (32° Be ) aqueous solution shipped in glass carboys, tank cars, or tmcks. Crystalline hexahydrate is shipped in glass containers or plastic-lined drums. In 1980, 5200 metric tons of aluminum chloride hexahydrate on a 100% AIQ basis was produced in the United States (10). 

The suitability of plastic containers should be considered in the light of possible degradation if exposed to UV radiation. Special care is necessary when filling plastic or plastic-lined drums to conduct away static electricity. 

Sufficient charge must be available to supply the required critical surface charge density. Calculations show that 50-pound plastic bags and plastic lined 55-gallon drums are too small to represent a credible risk. 

Dmms comprise metal, lined metal or plastic containers with capacity up to 60 gallons (227 L) and are the largest containers considered in the following sections. Metal and plastic-lined metal drums can have either fixed or removable heads. It should always be ensured that dmms are sealed prior to... 

In bottles, plastic drums, steel or resin-lined drums (e.g. of 210 litre capacity). 

Up to 0.4 g/L of the iodine stays in solution and the rest precipitates as crystallized iodine, which is removed by flotation (qv). This operation does not require a flotation agent, owing to the hydrophobic character of the crystallized element. From the flotation cell a heavy pulp, which is water-washed and submitted to a second flotation step, is obtained. The washed pulp is introduced into a heat exchanger where it is heated under pressure up to 120°C to melt the iodine that flows into a first reactor for decantation. From there the melt flows into a second reactor for sulfuric acid drying. The refined iodine is either flaked or prilled, and packed in 50- and 25-kg plastic-lined fiber drums. 

For moderate quantities, the UN limitations mean that maximum volumes are only 30 1 for plastic packages [drums] or 40 1 for metal drums [see Table 4]. Metal drums should be stainless steel, or a PTFE lined mild steel drum if used as an inner package. For single packages, e.g. drums, the maximum weight is 400 kg therefore, standard drums can be used, provided they are stainless steel or polypropylene barrels [or lined steel drums] and are filled to less than 90% of maximum capacity. 

Sodium hypochlorite solutions lose their disinfecting (oxidizing) power during storage, and thus should be stored in a cool, dark, dry area. No more than a 1-mo supply of the chemical should be purchased at one time to prevent loss of available chlorine. The material is supplied in glass or plastic bottles, carboys, or lined drums ranging in... 

VINYL NEODECANO ATE (51000-52-3) CijHjjOj Combustible, polymerizable liquid (flash point >175°F/>79°C). Inhibitor (monomethyl ether of hydroquinone or copper is recommended) must be present in adequate concentrations to avoid explosive polymerization. Inconq)atible with acids, 2-aminoethanol, ammonia, aliphatic amines, alkanolamines, ethylene diamine, ethyleneimine, ozone. The monomer is usually supplied in bulk or resin-lined drums and may be stored in tin- or stainless steel-lined dmms. Storage in plastic or other vessels is not recommended. The uninhibited... 

Liquid polyaluminum chloride is acidic and corrosive to common metals. Suitable materials for construction of storage and handling facilities include synthetic rubber-lined steel, corrosion resistant fiber glass reinforced plastics (FRP), ceramics, tetrafluoroethjiene polymer (PTFE), poly(vinylidene fluoride) (PVDF), polyethylene, polypropylene, and poly(vin5i chloride) (PVC). Suitable shipping containers include mbber-lined tank tmcks and rail cars for bulk shipment and plastic-lined or all-plastic drums and tote bins for smaller quantities. Except for aluminum chlorohydrates, PAC products are shipped as hazardous substances because of thek acidity. 

A wide variety of containers of differing capacity and design are used for solids transport, i.e. fibreboard, metal, resin-lined metal, plastic drums plastic, paper or hessian sacks tote bins bulk tanker lorry-load. The material may then be stored in the containers as received, in hoppers or silos, or simply in piles depending upon its properties and value. 

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