Storage nitrogen blanketing

Storage Nitrogen blanket suggested for all storage in case of aeddentai high temp. pronounced discoloration is likely to occur above 140 F Jeffamine D-400 [Huntsman]... 

Toxicology LD50 (oral, rat) 0.22 g/kg, (dermal, rabbit) 0.4 g/kg can cause bums to skin and eyes, toxic effects if absorbed thru skin or swallowed Storage Nitrogen blanket suggested for all storage in case of accidental high temp. pronounced discoloration is likely to occur above 140 F Jeffamine T-5000 [Huntsman]... 

Storage Nitrogen blanketing during storage and transfer is tec. 

The rate of hydrolysis of DMAC is very low, but increases somewhat in the presence of acids or bases. DMAC is a stable compound, but is mildly hygroscopic and desiccation and/or dry nitrogen blanketing of storage vessels are sometimes used to reduce water pick-up. In the absence of water, acids, or bases, DMAC is stable at temperatures up to its hoiling point at atmospheric pressure. Its greater stability enables more economical recovery by distillation relative to that of other similar solvents. 

Liquid cycloahphatic amines and diamines have exacting purity and color standards. Almost all are sold to specification, not performance standards. Use as isocyanate precursors requites low water content criteria for these hygroscopic fluids, hence nitrogen blanketing is often specified for product sampling as well as storage and transport. 

The use of nitrogen blanketing where appropriate on pumps, storage tanks, and other equipment to minimize the release of toxic organics. 

Figure 10-19 shows a storage tank blanketed with nitrogen. This configuration resulted in an explosion and fire because of loss of inert material. Can you explain why ... 

Transfer the filtered drops in storage vessel under nitrogen blanket. 

Use nitrogen blanket in the tank throughout the storage and filling period. 

Transfer the filtered syrup to the storage vessel, flushing with nitrogen gas. Store the syrup under nitrogen blanket not more than 2 days before filling. 

Compounding the margarine oil blend at the refinery final deodorization shipping the melted blend to the margarine plant and storage under a nitrogen blanket. 

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