Inhalation corrosive chemicals

SAFETY PROFILE Poison by ingesdon and subcutaneous routes. Moderately toxic by skin contact and inhalation. Corrosive. A severe skin and eye irritant. Mutation data reported. Flammable liquid when exposed to heat or flame can react with oxidizing materials. To fight fire, use alcohol foam, foam, CO2, dry chemical. Exothermic reaction with cellulose nitrate does not proceed to ignition. When heated to decomposition it emits toxic fumes of NOx. 

Corrosive. A corrosive chemical is one that causes visible destruction of, or irreversible alterations in, respiratory tract tissue upon inhalation of vapors, mists, or fine particulates by chemical action at the site of contact. For most chemicals, corrosivity is a function of concentration. At sufficiently low concentrations, corrosive chemical vapors may act as irritants. Hydrogen chloride, nitrogen dioxide, and sodium hydroxides are examples of chemicals corrosive to the respiratory system. 

Corrosive chemicals such as sodium hydroxide or sulfuric acid that destroy or otherwise damage the skin and mucous membranes on external contact or inhalation. 

Despite this and other successes, envious colleagues refused to accept his discoveries. However, the general public became very enthusiastic about this new wonder chemical , and use of such preparations as the carbolic smoke ball became very popular. The carbolic acid was placed in a heat-proof vessel and this was warmed so that the vapours could be inhaled. Anyone who has encountered carbolic acid (phenol) would doubt that this fairly corrosive chemical could provide the benefits claimed in the advertisement ... 

L/D ratio See screw length-to-diameter ratio, leach To extract a soluble component from a mixture by the process of percolation. See percolation, leachate A contaminated liquid that drains from landfills and must be treated before entering the environment. It can contain decomposed wastes, decomposition byproducts, heavy metals, or bacteria. See geomembrane, lead 1. The distance in an axial direction from the center of an element such as a screw flight at its outside diameter to the center of the same flight. See directional property. 2. A heavy metal, Pb is hazardous to one s health if inhaled or swallowed. Its use is restricted. In plastics it is found in certain products, such as additives. Pb can be used in safe environments since it has excellent performance properties, such as resisting attack by many corrosive chemicals and is impervious to x-ray and gamma radiation. See hazard x-ray. 

Chemical Inhalation of chemical gases Human injury or fatality, equipment damage caused by corrosion... 

Corrosives. Corrosivity is a form of acute toxicity sufficiently common and hazardous to merit separate discussion. Corrosive chemicals include strong acids, strong bases, oxidizing agents, and dehydrating agents. When they come in contact with skin, eyes, or, through inhalation, the surface tissues of the respiratory tract, they react with the tissues they touch and cause local injury. 

Chemical bums result when living tissue makes contact with corrosive chemicals. Though most chemical bums are to the skin, eye contact, ingestion, and inhalation of corrosives also result in numerous chemical bum instances. It is important to differentiate between chemical irritation and burning. Chemical irritants produce reversible reactions that include swelling, itching, and burning sensations. These effects, however. 

Many chemical substances used in a laboratory are toxic to humans when ingested or inhaled. Precautions must be taken with these substances to keep them out of the mouth, nose, eyes, and the skin. It is important to wear protective clothing, gloves, and safety glasses when handling toxic or corrosive chemicals. 

Acids such as sulfuric, hydrochloric, nitric, and especially hydrofluoric as well as strong alkaUes such as caustic soda and caustic potash are extremely corrosive to animal and vegetable tissue. Extreme caution must be taken to prevent skin contact, inhalation, or ingestion. Violent reactions may occur when dissolving or diluting many of these chemicals with water. 

The MSDS (46) for thiophosgene describes it as highly toxic, corrosive lachrymator and moisture sensitive compound. It may be fatal if inhaled, swallowed, or absorbed through the skin. When using this material one should wear the appropriate NIOSH/OSHA-approved respirator, chemical-resistant gloves, safety goggles, and other protective clothing. It should be used only in a chemical fume hood. 

Health Hazards Information - Recommended Personal Protective Equipment Suitable respirator (For dust) rubber gloves chemical goggles or face shield Symptoms Following Exposure Inhalation of dust causes irritation of nose and throat. Ingestion can cause irritation or corrosion of the alimentary tract, circulatory collapse, and toxic nephritis. Contact with eyes or skin causes irritation General Treatment for Exposure INHALATION move to flesh air if exposure has been severe, gel medical attention. 

Nitric oxide (NO) is severely irritating to eyes and respiratory system. Effects may be delayed for several hours following exposure. Corrosive. Inhalation may result in chemical pneumonitis and pulmonary edema. Nonflammable. Oxidizer. This product accelerates the combustion of combustible material. 

Oxidizers will nearly always be identified as such on their MSDSs or International Chemical Safety Cards. They may be identified as DOT/UN Hazard Class 5.1 materials for shipping purposes and labeled as oxidizers. However, some oxidizers are classified otherwise. Chlorine, for example, is DOT/UN Class 2.3 (gases toxic by inhalation) and labeled as POISON GAS for shipping purposes it may also be labeled as a corrosive material. Liquid oxygen is Class 2.2 (nonflammable nontoxic compressed gases) but should be labeled as NONFLAMMABLE GAS and OXIDIZER. 

Diethanolamine is a viscous liquid widely used as a chemical intermediate and as a corrosion inhibitor and surface-active agent in various products including metalworking fluids, oils, fuels, paints, inks, cosmetic formulations and agricultural products. Occupational exposure may occur by inhalation and dermal contact, particularly in metal-machining occupations. No data were available on environmental exposure to... 

Classes of waste should be properly segregated for temporary accumulation and storage as well as for transportation and disposal. Accordingly, all wastes must be labeled properly before being removed. The label should contain sufficient information to ensure safe handling and disposal, including the initial of accumulation and chemical names of the principal components and any minor components that may be hazardous. The label also should indicate whether the waste is toxic, reactive, corrosive, metallic, flammable, an inhalation hazard, or lachrymatory. 

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