Burns frostbite

Aloe Vera 10 49.37 million (7) Burns, frostbite tissue ... 

Cryogenic burn Frostbite damage to tissues as the result of exposure to low temperatures. It may involve only the skin, extend to the tissue immediately beneath it, or lead to gangrene and loss of affected parts. 

Personnel should wear protective gloves to prevent contact with liquids during loading and unloading. Liquefied gases vaporize rapidly upon release at normal temperatures and atmospheric pressure. Contact with such liquids by skin surfaces and subsequent evaporation causes severe burns (frostbite). When large quantities of liquid are involved, deep and severe freezing of the body area in contact with the liquid results. 

On contact with the skin, liquid ammonia produces severe burns compounded by frostbite due to the freezing effect from rapid evaporation from the skin. 

Hazards in addition to those taken for hydrogen gas should be taken when handling or storing LH2. Therefore, any LH2 splashed onto the skin or into the eyes can cause frostbite burns or hypothermia. Vents and valves in storage vessels and dewars may be blocked by accumulation of ice formed from moisture in the air. Excessive pressure may then result in mechanical failure with jet release of hydrogen and potentially in BLEVE. 

Personal Protective Equipment Phosgene is a severe respiratory tract and skin irritant, and contact with the liquid will cause frostbite. Respiratory protection requires positive-pressure-demand, self-contained breathing apparatus (SCBA), while skin protection requires chemical-protective clothing since phosgene gas can cause skin irritation and burns. NIOSH recommends protective suits from Responder (Kappler Co.), Tychem 10000 TM (DuPont Co.) or Teflon (DuPont Co.). 

Contact of solutions of ethylene oxide with the skin of human volunteers caused characteristic burns after a latent period of 1-5 hours, effects were edema and erythema and progression to vesiculation, with a tendency to coalescence into blebs, and desquamation. Complete healing without treatment usually occurred within 21 days with, in some cases, residual brown pigmentation. Application of the liquid to the skin caused frostbite three of the eight volunteers were said to have become sensitized to ethylene oxide solutions. The undiluted liquid or solutions may cause severe eye irritation or damage. 

Direct contact with the liquefied product causes burns and frostbite. ... 

Care should be taken during variable temperature experiments. When using liquid nitrogen for variable temperature work, skin contact should be avoided as severe frostbite or cryogenic burns can result. Also, certain parts of the equipment may become hot during the experiment. 

Frostbite occurs when human skin freezes. It is more likely to happen to the hands, feet, nose and ears, but any bit of skin exposed to severe cold temperatures for long periods of time can suffer from frostbite. The skin gets hard, pale, and cold, but it doesn t hurt once frozen. The pain comes when the skin begins to thaw and feeling returns to the body part. Tingling, burning pains, and red blisters are not uncommon. 

Toxicity and health effects Human exposure to hydrogen bromide causes redness, pain, frostbite, and severe burns and blisters on the skin. Eye contact with the liquid causes redness, pain, severe burns, and possible permanent eye damage. It causes nose and throat irritation, watery eyes, bloody nose, nausea, vomiting, chest pain and/or light-headedness, coughing, shortness of breath, fluid in the lungs or pulmonary edema, unconsciousness, low blood pressure, rapid heartbeat, kidney failure, coma, and death. ... 

Frostnip. Frostnip is the precursor to frostbite. It is a superficial cold injury without ice crystal formation or tissue damage. Clinically, the involved injury is pale from vasoconstriction, and mild burning or stinging is usually felt. Symptoms improve with rewarming, and no long-term tissue damage occurs. 

SAFETY PROFILE Contact with skin or living tissue can cause frostbite-like burns. This material is stable when very cold. Solid CO2 goes directly (sublimes) to gaseous CO2, which is mainly an asphjtxiant. See also CARBON DIOXIDE. 

Liquid chlorine causes burns to skin and eyes and will cause frostbite. It may cause lung injury if... 

At high concentrations, ethylene oxide acts as an eye and respiratory irritant as well as a CNS depressant. Symptoms of overexposure include nausea, vomiting, and neurological effects. Pulmonary edema may result. Contact with liquid ethylene oxide or its solutions may result in irritation and burns as well as frostbite from evaporative cooling. 

Skin Burns, mucous membrane irritation, frostbite (liquid)... 

Chlorine VAPOR Poisonous if inhaled. Will burn eyes. LIQUID Will burn skin and eyes. Will cause frostbite. 25 ppm Not Pertinent Toxic products are generated when combustibles burn in chlorine. OSHA PEL 1 ppm ACGIH TLV 1 ppm... 

Carbon Monoxide Self-contained breathing apparatus safety glasses and safety shoes Type D or Type N canister mask. Remove from exposure give oxygen if available support respiration call a doctor. If burned by liquid, treat as frostbite. ... 

Nitrous Oxide Self-contained breathing apparatus for high vapor concentrations. Remove to fresh air. Treat frostbite burn soak in lukewarm water. Get medical attention for frostbite burn. 

Oxygen, Liquefied Safety goggles or faces shield, insulated gloves, long sleeves, trousers worn outside boots or over high-top shoes to shed spilled liquid. In all but the most severe cases (pneumonia) recovery is rapid after reduction of oxygen pressure. Supportive treatment should include immediate sedation, anticonvulsive therapy if needed and rest. Treat frostbite. Soak in lukewarm water. Treat frostbite burns. 

Vinyl Fluoride Inhibited Protective goggles, safety glasses, self-contained breathing apparatus. Remove victim to fresh air. If frostbite has occurred, flush areas with warm water and treat burn. ... 

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