Synthetic Services

Positions in profiling impurities and elucidating their structures can be hard to identify from job titles alone. Frequently these posts go unnamed in the help wanted ads that describe them, or they bear nonspecific names like research investigators in technical registration resources. Other advertisements caU for degradation chemists or reference chemists. Understanding job descriptions is essential to finding one of these positions titles can differ from one company to another. 

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Synthetic services kilo laboratory re-synthesis group... 

An organic chemist characterizes the pure compounds she makes, often identifies samples of them with one another, and sometimes deduces their structures. These are recurring tasks that demand skill and judgment and are commonplace throughout discovery and development research. The chemists who do them work in medicinal or process chemistry, drug metabolism, radiochemistry, pharmaceutical analysis, and synthetic services. These tasks occupy much of the working life of any chemist who remains an experimentalist and reward sometimes protracted efforts to purify samples. A chemist who likes these aspects of her job, which this section introduces, enjoys her career. 

The manufacturers of synthetic fluids offer technical service and consultation, and fluid reprocessing service can be arranged between the suppHer and the user. Complete physical properties and detailed information concerning synthetic fluids are reported in the manufacturers product Hterature (13—36). The physical characteristics of the synthetic fluids can be found in Table 1. 

Fig. 2. Comparative temperature limits of mineral od and synthetic lubricant, where D represents continuous service U service dependent on starting...

The level of technical service support provided for a given product generally tracks in large part where the suppHer considers thek product to be located within the spectmm of commodity to specialty chemicals. Technical service support levels for pure chemicals usually provided in large quantities for specific synthetic or processing needs, eg, ammonia (qv), sulfuric acid (see SuLFURic ACID AND SULFURTRIOXIDe), formaldehyde (qv), oxygen (qv), and so forth, are considerably less than for more complex materials or blends of materials provided for multistep downstream processes. Examples of the latter are many polymers, colorants, flocculants, impact modifiers, associative thickeners, etc. For the former materials, providing specifications of purity and physical properties often comprises the full extent of technical service requked or expected by customers. These materials are termed undifferentiated chemicals (9),... 

Fluoiocaibon elastomeis aie synthetic, noncrystaUine polymers that exhibit elastomeric properties when cross-linked. They are designed for demanding service appHcations in hostile environments characterized by broad temperature ranges and/or contact with chemicals, oils, or fuels. 

Depending on the product and sales arrangement, the revenues calculation can take from a few man-hours to many man-months of effort. For instance, determining the price for a synthetic fuel from coal can be done in a very short time, based on the cost of service. However, if the price is tied to the price of natural gas or oil, the task becomes very difficult, if not impossible. On the other hand, determining the sales growth and selling price for a new product requires a great deal of analysis, speculation, market research, and luck, but projections can be made. 

Some of the problems can be solved with specially selected oil grades. Another solution is synthetic oils, but cost is a problem particularly with silicone oils. Alternatives must be reviewed to match service life of the lubricant with lubrication requirements in the compressor. 

Face-seal materials can be chosen from filled, molded or reinforced resins with which water, hydraulic fluids, mineral oils or synthetic oils are all compatible. Their maximum temperature in service depends on the brittle point of the resin but, generally, the range is from —50°C to 100°C (122°F to 212°F). Abrasion resistance is generally good but, as far as possible, resins are not used in the presence of foreign solids. 

Bachem produces biochemical and pharmaceutical compounds, and offers complementary services on a proprietary technology platform. Although, oriented to the Health Sector, it supports synthetic methods from customers for defined target structures up to the registration of new compounds. Consequently, R D activities are also a strong part of Bachem business that encourages collaborations with technology partners to produce new active substances. 

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