Stock container

Silene EF stocks contain 2.4, 3.8, and 5.0 parts of diethylene glycol, respectively. 

In addition to the 1 part of MBTS shown in recipe, the 20 vol HiSil 233 stock contains 0.25 parts TMTD and 0.5 parts triethan o1 amine the 30 vol stock contains 0.5 parts TMTD and 2 parts triethano1 amine and the 40 vol stock contains 0.5 parts TMTD and 3 parts triethano1 amine. 

The HiSd 233 stocks contain 2.3, 3.5, and 4.8 parts of diethylene glycol, respectively. The 30 vol stock contains 1.2 parts MBTS and 0.15 parts TMTD instead of the combination in the recipe the 20 and 40 vol stocks contain 1.5 parts MBTS and 0.1 parts TMTD. 

If the stock is to receive a second impregnation, it must be rebaked. In the past, stock containing raw impregnating pitch could be graphitized directly. However, the air polluting effect caused by this practice has made rebaking a necessary preliminary step to graphitization in order to achieve effective environmental control. 

In the manufacture of colored papers, it is best to add the dyestuffs before addition of rosin size and alum. This is not always possible in continuous dyeing procedures where dyestuffs must be added to stock containing size and/or alum, and this may cause premature laking of the dyestuffs and subsequent loss of tinctorial strength and/or dullness of shade. The proper selection of dyestuffs can help to reduce these disadvantages. 

Figure SO.3. Variation of internal temperature during cure of ebonite stocks containing 0, 20, 50 and 100 parts of ebonite dust per 100 parts (rubber and sulphur). (After Scott, see bibliography)...

FIGURE 28.11 Storage modulus as a function of temperature for the ENR stocks containing various fillers in 10 h. (From Siby Varghese, J. and Karger-Kocsis, J., J. Appl. Polym. Sci., 91, 813, 2004.)... 

When the feed stock contains constant proportions of reactive impurities, the rate of decline also may depend on the concentration of the main reactant, thus... 

The rather low concentration of the desired p-xylene component in the Parex unit feed means a large fraction of the feed stock contains other A8 components that are competing for adsorption sites in the adsorbent zeoHte cages. Due to this typically lean feed, a significant hike in the Parex unit capacity can be obtained by even a small increase in the composition of the p-xylene. Techniques to increase the p-xylene feed concentration include greater dealkylation of the ethylbenzene in the Isomar unit by converting from an ethylbenzene isomerization catalyst to... 

All catalysts will show abnormal aging if the charge stock contains even minute quantities of heavy metals such as copper, nickel, and vanadium (14). 

Buist and Davies during a study of natural rubber and chloro-prene rubber stocks containing various carbon blacks point out that certain properties are closely related. For example, for natural rubber the following groups are highly correlated. 

Deoxynbonucleoside triphosphates (dNTPs). The stock contains 6 25 mM of each dNTP- The stock contains 6.25 mM of each dNTP. 

The plutonium metal feed stock contained about 5 ppm natural lead which was not removed by the process. Recovery of americium in the finishing process (oxalate precipitation and calcination) averaged 98.5%. Most of the residual chromium contaminant was removed from the oxalate in decanted supernate and washes. The finished oxide product purity exceeded specifications i.e., >95% Am02 By selective blending, impurities in the shipped product, predominantly lead and nickel, were kept below 2%. 

According to the tanks-in-series model of m stages, the concentration profile of the feed stock containing polypeptides and proteins continuously introduced from time t — 0 onward and leaving a column at time t is given by... 

Stocks containing 20-40% of the product range from soft to stiff pastes. Stocks of 10-15% are pourable, pumpable fluids. They are all easily handled and are readily dispersible in warm water. 

Ammonium bicarbonate stock (100 mMl was made and stored at 4° C. Stock solutions of all proteins were prepared in 0.1% TFA, 50% acetonitrile solutions and stored at -20°C until use. Aliquots of the stocks, containing 10 to 100 pg of protein, were dried in a centrifugal dryer prior to digestion. To 5 mg of N,N-diethylaminopropyl-bis-(3-hydroxypropyl) phosphine, 1 ml of 50% isopropyl alcohol/50 mM ammonium bicarbonate was added. The samples were then resuspended in 20 pi reagent solution per 10 pg of protein, heated at 80 C for 2 hours, and dried to remove volatile components. 

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