Stove casing

During stoving in convection-type box ovens, drying can be delayed (as it can on air drying when the ventilation is insufficient, e.g. in a ship s hold) if the vents are closed too far, or if the coated articles are too closely packed. In the latter case there may even be trouble caused by solvent wash, i.e. redissolution of the uncured film by stagnant solvent vapours, which occurs mostly on surfaces near the top of the oven. This can lead to the establishment of practically unprotected areas. 

These intermediates are too small to be used alone, but need to be enlarged and modified to obtain compatibility with other resins. In the case of the phenol formaldehyde resins this is achieved by either using para-substituted phenols where the substituent contains at least four carbon atoms or by reacting the intermediate with the natural resin, rosin, and then esterifying with glycerol or pentaerythritol. These resins have a limited use in stoved epoxy finishes where colour is not an important factor. 

If you feel the need of a hot cup of coffee, you are going to need to boil some water. Even though there are no obvious physical forces to overcome in this case, you still need a source of energy in order to increase the kinetic energy of the molecules of water. Temperature is a measure of molecular kinetic energy. So you turn on your electric kettle or light your stove burner or whatever to provide the necessary energy. 

There are limited epidemiological data regarding carcinogenicity in humans following chronic inhalation exposure to kerosene. In one case-control study, there was no association between the use of kerosene stoves for cooking and bronchial cancer in nonsmoking women (Chan et al. 1979). In another case-control study, there was no association between renal cell cancer and occupational exposure to fuel oils. 

Limited epidemiological information exists for carcinogenicity in humans following inhalation exposure to kerosene (vapor) (Chan et al. 1979) and other fuel oils such as diesel fuel (vapor) (Partanen et al. 1991). These studies either test kerosene exposure by use of kerosene stoves, and so are limited for the same reasons as the respiratory studies described above, or measure fuel oil exposures according to occupation. In the latter case, confounding from exposure to other chemicals, such as gasoline, exists. Both studies are limited since the duration and level of fuel oil exposure were not identified. Other available data are also reported to be inadequate to assess the carcinogenic potential of fuel oils (lARC 1989 Lam and Du 1988). 

Kerosene heaters can be significant sources of particles under some circumstances. For example, kerosene heaters were reported to contribute to indoor PM2 5 in homes in Suffolk County, New York, but not Onondaga County wood stoves and fireplaces and gas stoves did not contribute in either case (Koutrakis et al., 1992 Wallace, 1996). A similar conclusion was reached in a study of eight mobile homes in North Carolina (Mum-ford et al., 1991). 

Once the energy - in many cases, heat - is generated, it must be transmitted to the fuel (the "touching" of the fuel and energy legs). This process is accomplished in three ways conduction (die transfer of heat through a medium, such as a pan on a stove s heating element), convection (the transfer of heat with a medium, such as the heated air in a hot-air furnace), and radiation (the transfer of heat which is not dependent on any medium). 

Carbon monoxide is produced when carbon and carbon compounds undergo incomplete combustion. The inefficient combustion of carbon fuels for heating results in the production of carbon monoxide, which may result in high CO concentrations in indoor environments. The use of carbon fuel heaters without adequate ventilation can result in deadly conditions. Each year several hundred people in the United States die from CO poisoning, and 10,000 patients are treated in hospitals for CO exposure. Most of these cases result from faulty heating systems, but barbeques, water heaters, and camping equipment (stoves, lanterns) are also sources of CO. 

Add the acetone dropwise to the flask from the dropping funnel. Carefully heat the flask on an enclosed electric stove. If the reaction proceeds too violently, the reaction mixture may be thrown from the flask into the receiver. In this case, stop heating and cool the flask in a bath with cold water. Add the following portions of acetone as the formed chloroform is distilled off. 

The following description is taken from Marshall (Ref 1) As the cords, strips, tubes, etc of a single-base proplnt emerge from the die-press, they are usually wound on frames provided with springs which allow the cords, etc to contract as the solvent evaporates. In case of cords, etc of large diam, they are nailed to the frames. The frames are then placed in a "stove (similar to that briefly described under Dehydration and Drying of Nitrocelluloses) where the air, heated not above 40°, is circulated from top to bottom until the bulk of the solvent is removed. The spent air is passed thru an apparatus for solvent recovery and the incompletely dried proplnt cords, etc are removed from the stove. 

As to the types of houses that burned, generally fires in homes and houses combined with shops were more frequent Among 20 fires from oil stoves, four resulted in complete destruction, three in half destruction, and thirteen in small, partial burning, the majority of fires having been extinguished immediately after they broke out As can be seen in the table, 12 cases of fires from oil stoves were caused by the stoves tipping over cases of simple tipping (by earthquake vibration) were only two, and... 

In both cases the liquor must be cooled, coloured and flavoured then deposited, as in more traditional processes. While it is relatively easy to carry out all of the processes up to depositing on a continuous basis, continuous stoving is difficult - most factories operate stoving as a batch process. It is, however, possible to operate a stove in the form of a tunnel where moulds are fed in at one end and move continuously through the tunnel to emerge with the final solids content at the other end. 

The most common cause of accidental poisoning with carbon monoxide is a fire, stove, or boiler that is inadequately ventilated. When it is lit, it produces the toxic gas which accumulates in the house, especially in modern homes which are often double-glazed and have little ventilation, and especially in the winter. One reason for poor ventilation may be birds nesting in the chimney, which decreases the availability of air. In a recent case a family lit a fire in a rented holiday cottage, but unbeknown to them the chimney had become blocked with a bird s nest, and all of them died of carbon monoxide poisoning. 

Fig, 5 and Fig. 6 show the heat output curves of the appliances and the weighted surface temperature curves. A very good conformity of these curves can be observed in case of the soapstone stove. Also the curves of the tiled stove are quite conform, although the start peak could not be reproduced with the surface temperature measurements. The heat output peak is a result from convection phenomena at the non-insulated flue duct, which is not detected by the surface temperature method. 

This is the only case where you should distill over a stove. A stove is harder to control than an alcohol lamp. It is also harder to clean up than a table in case of an accident. 

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