SKIN SHIELD

Although it cannot stop bullets, rhino hide is incredibly thick and strong and can deflect arrows, so it was used for shields. Being thick and pliable, rhino skin shields could be painted and decorated, as they were in India, or they could be polished and adorned with silver, as was the custom in Abyssinia. 

Dyclonine hydrochloride (dyclone) has a rapid onset of action and duration of effect comparable to that of procaine. It is absorbed through the skin and mucous membranes. Marketing of dyclonine solutions for clinical use has been discontinued in the U.S. Dyclonine is an active ingredient of OTC medications including sore throat lozenges (sucrets, others), a gel for cold sores (tanac), and a 0.75% solution (skin shield) to protect against contact dermatitis. 

When dispersed as a dust, adipic acid is subject to normal dust explosion hazards. See Table 3 for ignition properties of such dust—air mixtures. The material is an irritant, especially upon contact with the mucous membranes. Thus protective goggles or face shields should be worn when handling the material. Prolonged contact with the skin should also be avoided. Eye wash fountains, showers, and washing faciUties should be provided in work areas. However, MSDS Sheet400 (5) reports that no acute or chronic effects have been observed. 

In desert or tropical climates skin dries into a hard mass that does not soften even when soaked in water. By shaping a skin to a desired form and then drying, however, useful articles such as dmm heads and shields can be made. Tanning for useful leather is not a simple skill. 

A mixture of PhenoHc MicrobaUoons and resin binder has a putty-like consistency. It can be molded to shape, troweUed onto surfaces, or pressed into a core. Curing gives a high strength, low density (0.144 g/cm ) foam free of voids and dense areas, and without a brittle skin. Syntactic foams are used in widely diverse appHcations, including boat flotation aids stmctural parts in aircraft, submarines, and missiles stmctural cores for waU panels and ablative heat shields for reentry vehicles and rocket test engines. 

Potassium forms corrosive potassium hydroxide and Hberates explosive hydrogen gas upon reaction with water and moisture. Airborne potassium dusts or potassium combustion products attack mucous membranes and skin causing bums and skin cauterization. Inhalation and skin contact must be avoided. Safety goggles, full face shields, respirators, leather gloves, fire-resistant clothing, and a leather apron are considered minimum safety equipment. 

Alkylamiaes are toxic. Both the Hquids and vapors can cause severe irritations to mucous membranes, eyes, and skin. Protective butyl mbber gloves, aprons, chemical face shields, and self-contained breathing apparatus should be used by aH personnel handling alkylamiaes. Amines are flammable and the lower mol wt alkylamiaes with high vapor pressures at ordiaary temperatures have low flash poiats. Amines should be handled ia weH-veatilated areas only after eliminating potential sources of ignition. 

In view of the above, aniline should be handled in areas with adequate ventilation and skin exposure should be avoided by wearing the proper safety equipment. Recommended personal protective equipment includes hard hat with brim, chemical safety goggles, hiU length face shield, mbber gaundet gloves, mbber apron, and mbber safety shoes or mbber boots worn over leather shoes. 

The potassium hydroxide electrolyte used in alkaline batteries is a corrosive hazardous chemical. It is a poison and if ingested attacks the throat and stomach linings. Immediate medical attention is required. It slowly attacks skin if not rapidly washed away. Extreme care should be taken to avoid eye contact that can result in severe bums and blindness. Protective clothing and face shields or goggles should be worn when filling cells with water or electrolyte and performing other maintenance on vented batteries. 

Consider the need for personal proteetion sueh as skin, eye (goggles/faee shield) and respiratory proteetion ineluding self-eontained breathing apparatus. 

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