Cork-wood

Both the dry-box and the dry-bag offer a considerable degree of experimental flexibility and are very suitable for larger scale preparative work in which catalytic amounts of impurities are unimportant. However, in this context it is very important to remember that some materials, and expecially natural products such as cork, wood and paper, have a high water content, however carefully they may have been dried and/or degassed, and that they should therefore never be used inside a dry-bag or dry-box. 

Member State Other Adhesives Ceramics Glass Enamel Metals alloys Cork Wood Textile... 

He an iron needle must In the cork wood firmly thrust. 

Glass is not appreciably attacked by the liquid acid but the part of a glass container in contact with the vapor over the liquid is attacked slowly. The cold anhydrous acid does not attack S, C, Se, Te, Pb, Ag, Cu, Zn, Fe, Cr, or Mn but it slowly dissolves Hg and Sn. At higher temperatures it dissolves S, Pb, Hg, and Sn rather rapidly. Rubber, cork, wood, and sealing wax are attacked 209). 

Electrical conductors (e.g., metals) generally show an increase in emissivity e with an increase of wavelength of the radiation. On the other hand, nonconductors such as asbestos, cork, wood, concrete, etc., show the opposite trend. 

Krahmer R L, Wellons J D 1973 Some anatomical and chemical characteristics of Douglas-fir cork. Wood Sci 6 97-105... 

Electrical conductors (e.g., metals) generally show an increase in emissivity s with an increase of wavelength of the radiation. On the other hand, nonconductors such as asbestos, cork, wood, concrete, etc. show the opposite trend. The emissivity of many bodies also show directional properties but as the data available are scarce, a good approximation is to suppose an average value for s/s =1.2 for polished metallic surfaces and 0.96 for nonmetallic surfaces (Kreith, 1965). 

Ex. 6 Multranil 176 polyurethane elastomer is dissolved at 20% by weight in a mixture of dry ethyl acetate and acetone, and 8.3 phr of Mondur TM (XII) (for natural and synthetic rubber adhesion) or 5 phr of Mondur CB-75 (XXIX) (for non rubber adhesion) is added. These combinations are versatile adhesives for bonding vulcanized rubber (natural and synthetic) to itself, leather, urethane, PVC, cork, wood, etc. Cure occurs at room temperature, and faster at elevated temperatures. At room temperature bond strengths (peel) are (imme-diate/after 3 days) rubber-to-rubber, 5.5—9.0/ 25 rubber-to-shoe sole leather, 5.5—7.3/24 shoe sole leather-to-shoe sole leather, 7.3—9.0/ 24 rubber-to-shoe sole leather, 9.5/24 Ib/in. width. 

Cork / Wood HDPE Extrusion Compression Moulding [82]... 

FIG. 5-12 Variation of absorptivity with temperature of radiation source. (1) Slate composition roofing. (2) Linoleum, red brown. (3) Asbestos slate. (4) Soft rubber, gray. (5) Concrete. (6) Porcelain. (7) Vitreous enamel, white. (8) Red brick. (9) Cork. (10) White dutch tile. (11) White chamotte. (12) MgO, evaporated. (13) Anodized aluminum. (14) Aluminum paint. (15) Polished aluminum. (16) Graphite. The two dashed lines bound the limits of data on gray paving brick, asbestos paper, wood, various cloths, plaster of parts, lithopone, and paper. To convert degrees Ranldne to kelvins, multiply by (5.556)(10 ). 

Fibrous or cellular—organic. Cane, cotton, wood, and wood bark (cork). 

Of the fibrous fillers which greatly reduce the brittleness, blue asbestos fibre is normally used for battery boxes, the principal outlet. Other materials that may be used include cotton fibres, ground wood, slag wool and ground cork. 

Non-metallic Materials Carbides, carbon, ceramic fiber, ceramic, cermet, composite, cork, elastomer, felt, fiber, glass, glycerin, non-metallic bearing material, rubber (natural), rubber (synthetic), silicone, wood, leather. 

One commercial adhesive is marketed with the following claims High Strength Adhesive Durable Bonding Fast Acting Bonds Metals, Rubber, Ceramics, Plastics, Glass, Wood, Veneers, Fabrics, Vinyl, Cardboard, Cork, Leather, Nylon, and Other Similar Surfaces. 1 How can one substance act as a general purpose adhesive with affinity for so many types of surfaces ... 

MATERIALS Small bottle or test tube, dried peas, beans, or grain, small piece of cork or wood, battery, electric wire, electric blasting cap. 

Cut a float from cork or wood to a slightly smaller diameter than the test tube or other container to be used. 

Fit a cork or wood stopper tightly into the dropper. Make two small holes through the stopper... 

Prices for a k-value (thermal transfer coefficient) of 0.2 in /m Mineral wool 5- 17.5 polystyrene 10 polyurethane 15 -20 cork 50 wood wool-lightweight building board 100, cellulose 12.5-20 (loose) or 20 (plates) (ENRW 01). 

It is well known that anhydrous perchloric acid must never be allowed to come into contact with oxidizable organic substances such as alcohols, wood, cotton, paper, cork and most plastics otherwise ignition or explosion will result. 

Among the dopes used may be cited the following combustibles colophony (used by Nobel in his Dynamites of 1869 1873) (Vol 3 of Encycl, p C403R) wood-meal, woodpulp and sawdust in Grisounite and in some Amer Dynamites cork,charcoal (in "Carbodynamite , described in Ref 60, p C52-L) naphthalene (in Rheinischdynamit) and cotton or other forms of cellulose (in "Forcites ). Less frequently have been used peat moss, ivoty nut meal, unbaked com flakes, starch, pulverised peanut hull, pulverized cottonseed hulls and sunflower seed shells... 

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