Grey, Fast

B (System B) Treatment with IfHGl reagent generates a dark-brown zone of caffeine at R, 0.45 (T2) in extracts (1) and (3), less concentrated in (2) and (4). Theobromine at R, — 0.4 (T3) i.s delected as a grey, fast-fading zone in Mate folium (2), The concentration of theobromine in Cacao semen (4) is low, the amount of theophylline (R, — 0.6) in the extracts 1-4 is not. sufficient for detection. 

Empirical grey models based on non-isothermal experiments and tendency modelling will be discussed in more detail below. Identification of gross kinetics from non-isothermal data started in the 1940-ties and was mainly applied to fast gas-phase catalytic reactions with large heat effects. Reactor models for such reactions are mathematically isomorphical with those for batch reactors commonly used in fine chemicals manufacture. Hopefully, this technique can be successfully applied for fine chemistry processes. Tendency modelling is a modern technique developed at the end of 1980-ties. It has been designed for processing the data from (semi)batch reactors, also those run under non-isothermal conditions. 

Various complex carbazole-acridone dyes have been exploited to obtain brown, khaki, grey and olive hues. The fused carbazole-acridone Cl Vat Brown 55 (6.92), which possesses excellent all-round fastness properties, is currently available. This compound can be obtained from the 6,10,12-trichloro derivative (Cl Vat Violet 14) by condensation with two equivalents of l-amino-5-benzoylaminoanthraquinone, followed by carbazolisation. 

Europium is a soft, malleable, grey metal. It is as soft as lead. It is rapidly attacked by moisture at ordinary temperatures and reacts with cold water as fast as does calcium. A pressure of 18,000 psi is required to extrude it into a wire of xl inch diameter at room temperature. It can be cut with a knife. It has a low tensile strength. It s coefficient of thermal expansion (a)... 

Janus black, diazine black, jute black, methyl ene grey, new fast grey, etc. 

Figure 10-14. Time evolution of the nonadiabatic surface hopping parameter, P10 (Eq. 10-10), for a transition from the 5 excited state to the. V0 ground state for representative 7Me-keto (fast oscillating, small amplitude dark grey curve) and 9Me-keto (fast oscillating, large amplitude light grey curve) G trajectories. The steep increase of P10 at / 10 fs in the case of 9Me-keto coincides with the transition from a quasi-planar to an out-of-plane distorted structure. At / 40 fs the amino group starts rotating...

Fastness ratings, according to the grey scales for staining, range from 1 (poor rating) to 5 (best rating). Parameters of influence include ... 

Fig. 12.6. Twelve hours in vivo monitoring with the GlucoDay on a diabetic patient on day 1. When indicated, the patient assumed some amoimts of insulin, both in regular and fast (NPH) formulation. The grey box highlights a nocturnal episode of hypoglycaemia. The grey dots represent the finger-stick controls, while the black dots correspond to blood meaisurements (with the permission of A. Menarini Diagnostic, Florence, Italy).

The above dyestuff, also known as Fast Grey, is a commereial product prepared by melting various organic substances (sawdust, bran, e.) with sodium sulphide. 

If heat-setting is carried out in the loom state, mineral oils and non-ionic emulsifiers can modify the fibre stmcture and rubbing and perspiration fastness may be reduced due to the solubility of disperse dye in the coning oil [ 1 -4]. PV A size above 135 C looses its Tg which is followed by becoming crystallized and melts. The H-bonds, therefore, can no longer be broken with the result that PVA becomes difficult to remove from the fabric. However, grey heat-setting is useful in the... 

Naphthalene Black D C.I. acid black 7 Coomassie Brilliant Blue R Coomassie Green T Coomassie Fast Grey G Coomassie Navy Blue G Viscolan Black B Sulphonine Red 3B... 

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