Bennett united states department of the interior james g. This pungent liquid is a strong, highly corrosive acid, and it presents serious storage challenges. If a skin or mucous membrane is exposed to hydrochloric acid, the site. Neutralizing hydrochloric acid with limestone caco3 produces calcium chloride.
Hydrochloric acid, 100% d hydrochloric acid, dry gas. Page 2 chemical resistance chart aluminum chloride beer 302 stainless steel 304stainless steel 316 stainless steel 440 stainless steel um anium y c e ass cast iron carbon steel kynar ype 1 ygon e3606 eflon yl acetal nylon cycolac abs ylene opylene n carbon ceramic gnet a on una n nitrile silicon neoprene ylene epm al xy. Plastics chemical resistance chart curbell plastics. Check the chemical compatibility of nylon with various chemicals, solvents, alcohols and other products. Metals and corrosion resistance engineering toolbox. The corrosion tables provide an initial guide to the selection of materials and are intended to facilitate understanding of the different types of corrosion damage that can arise due to poor material selection.
Hydrochloric acid is classed as reducing acid and lacks the oxidising properties that stainless steel need to maintain their passive corrosion resistant surface layer the acid is formed as a product of the pitting crevice corrosion mechanisms in stainless steel and so when hydrochloric acid is present in any. Need to find a conductive metal resistant to concentrated hydrochloric acid 2007 this entry appended to this thread by editor in lieu of spawning a duplicative thread. Hydrocyanic acid prussic acid b hydrofluoric acid, 10%. Alloy selection for service in chlorine, hydrogen chloride.
Hydrochloric acid is an oxidizing acid and highly aggressive as it has low ph and high levels of chloride. Polypropylene chemical resistance guide hmc polymers. Hydrochloric acid is also consumed in the production of artificial sweeteners and in the production of lysine, choline chloride both used primarily as animal feed additives and citric acid. In contrast, hastelloy c22 screws is slightly less corrosion resistant thanhastelloy b3 fasteners, but are excellent in strong oxidizing environments and can perform well in the presence of ferric chlorides, cupric chlorides and nitric acid. When loading and unloading using a tank truck, make sure that the manual. Hydrochloric acid hcl is a clear colorless liquid that is highly corrosive, and considered a strong mineral acid. Hydrochloric acid hydrochloric acid hcl is a clear colorless liquid that is highly corrosive, and considered a strong mineral acid. Ep621bf is a two part epoxy featuring the ability to withstand exposure. Some concentrations are expressed in per cent by weight of phosphorus pentoxide p 2 o 5 equivalent to the phosphoric acid contained. No wetted parts shall contain metals such as carbon steel, stainless steel, brass or aluminum. Hcl must also be constructed of acid resistant materials such as pvc, rubber, teflon, ceramic and hastalloy c. F a acetaldehyde n n acetaldehyde, aq 40% c n acetamide acetic acid, vapor r r acetic acid, glacial r n acetic acid, 25% r r acetic acid, 60% r n acetic acid. Temperature pressure concentration impurities phvalue materials and surfaces characteristics joinings e.
Hydrochloric acid or muriatic acid is a colorless inorganic chemical system with the formula hcl. Usually, a more resistant alloy such as alloy 400 or alloy c 276. Why is hydrochloric acid kept in plastic or glass bottles. The information in this chart has been supplied by reputable sources and is to be used only as a guide in selecting equipment for. Chemical resistance chart acetaldehyde alcohols propyl chemical resistance data these recommendations are based upon information from material suppliers and careful examination of available published information and are believed to be accurate. Hydrochloric acid hcl is an important mineral acid with many uses, including the pickling of steel, acid treatment of oil wells and chemical cleaning and processing. Oct 16, 2017 basically excuse the pun, anything thats not a base. Hydrochloric acid 10% l a a a a a hydrochloric acid 20% l a x a x a a l a a x x x x x x a x l a a suitable l limited x unsuitable blank insufficient data. Once it is dissolved in water hydrochloric acid is formed and this is corrosive to many metals and alloys. Due to elevated temperatures, fluctuating concentrations and permeation of its vapors, utilizing the correct material for your fasteners is key to withstanding this potent acid.
Materials selection for use in concentrated hydrochloric acid. While hydrochloric acid hcl is a common and critical industrial chemical, it often causes significant maintenance issues for fasteners. Electroless nickel a nickel coating containing 510% phosphorous applied by chemical reduction. Horton, director research at the fliscaoosa research centef is carried alit under a memorandum of agrbblltmt between the. Polypropylene, pvc, ptfe, fep, pfa, ectfe, pvdf, and frp can be used as long as long as recommended temperature limits are followed.
In general, stainless steels cannot tolerate aggressive hcl solutions, hence the need to use corrosionresistant nickelbased alloys. Corrosion and degradation depend on many parameters. Added consideration must be given to pump selections when the chemical is abrasive, viscous in nature, or has a specific gravity greater than 1. This acidis extremely corrosive and its aggressiveness can change drastically depending on its concentration, the temperature and contamination by oxidizing impurities.
The corrosion data in this section is mainly based on the results of general corrosion laboratory tests, which are not strictly comparable with actual service conditions. The ratings for these materials are based upon the chemical resistance only. Rubberlined vessels are commonly used for hydrochloric acid storage. Corrosion resistance of stainless steel the isocorrosion diagram 0. Ratings of chemical behavior listed in this chart apply at a 48hr exposure period. If a material is chemically resistant to the concentrated form of a specific chemical, it should be resistant to the diluted form of that same chemical. Hydrochloric acid polyethylene plastic storage tanks. Information regarding the chemical resistance of the unlisted materials is available on request. Also known as muriatic acid, hydrochloric acid is used to acidize petroleum wells, remove scales from boilers, aid in ore reduction and serve as a chemical intermediate, among other applications.
Major applications include acid pickling of steel, acid treatment of oil wells, chemical cleaning and processing, ore reduction, production of chlorine and chlorides and food 1 paper no. Corrosion tables the corrosion data in this section is mainly based on the results of general corrosion laboratory tests, which are not strictly comparable with actual service conditions. Some metals, like platinum, are acid resistant, but many arent. Selection stainless steel for handling hydrochloric acid hcl. Hydrochloric acid, aqueous solution 2% hydrochloric acid, aqueous solution 36% hydrofluoric acid, 40%. The corrosion tables provide an initial guide to the selection of materials and are intended to facilitate understanding of the different types of corrosion. Examples of materials resistant to corrosion by hydrochloric acid include acid. Materials selection for use in concentrated hydrochloric acid ajit mishra, dave shoesmith, and paul manning abstract hydrochloric acid hcl is an important mineral acid with many uses, including the pickling of steel, acid treatment of oil wells, and chemical cleaning and processing. Hydrochloric acid hcl is an important mineral acid, second only to sulfuric acid h 2so 4 in its uses in industry.
Handle in accordance with good industrial hygiene and safety practice. The main applications of hcl are for pickling steel, acid treatment for oil wells, chemical cleaning, and chemical processing for large scale production of vinyl chloride. Store in a cool, dry, ventilated storage area with acid resistant floors and good drainage. In general, nonmetalic materials have better resistance to hydrochloric acid than metallic materials. Each of these three substances, chlorine, hydrogen chloride and hydrochloric acid. Hydrochloric acid an overview sciencedirect topics. Each of these three substances, chlorine, hydrogen chloride and hydrochloric acid is discussed under various conditions. Acetic acid 20% ba a cd c acetic acid 80% ba ac db c acetic acid b aa cdb c acetic anhydride b aa cd d acetone6 a ba d. Acid, hydrochloric hydrogen chloride nr nr a nr q a nr nr nr nr a a a acid, hydrocyanic prussic a a a a a a.
Chemical resistance chart acetaldehyde alcohols propyl. What ferrous material is fully resistant to hydrochloric acid. Master bond ep621 is a two part, high performance epoxy resin system features long pot life at ambient temperatures and cures at moderately elevated temperatures. The silicon carbide, the silica, and one of the fire clay bricks also had excellent acidresistant properties. Incompatibility of common laboratory chemicals when certain hazardous chemicals are stored or mixed together, violent reactions may occur because the chemicals are unsuitable for mixing, or are incompatible. The carbon brick sample had the best acid resistant properties with a maximum total leached ion weight loss of 0. Formaldehye, aqueous solution 30% formic acid, aqueous solution 10% freon, frigen, liquid. F c f x c f acetone c f a alboloy process a alodine 200f. There are many forms of nylon, so this is just a broad overview of general compatibility. It is classified as strongly acidic and can attack the skin over a wide composition range, since the hydrogen chloride completely dissociates in an aqueous solution hydrochloric acid is the simplest chlorinebased acid. Hello i am trying to find a metal alloy that will conduct electricity but at the same time not corrode when exposed to concentrated hydrochloric acid. Steel pickling hydrochloric acid is used in pickling operations for carbon, alloy and stainless steels.
Hydrochloric acid hcl is an important mineral acid with many uses, including the pickling of steel, acid treatment of oil wells, and chemical cleaning and processing. Hydrochloric acid is an important and widely used chemical. Hydrochloric acid, or muriatic acid by its historical but still occasionally used name, has been an important and frequently used chemical from early history and was discovered by the alchemist jabir ibn hayyan around the year 800. However, since the resistance of metals, plastics and elastomers. All chemical resistance data for ethylene propylene epdm and fluorocarbon fkm contained within this manual has been provided, with written consent, by parker hannifin corporation. Corrosion resistant materials stainless steel hastelloy inconel elgiloy carbon steel aluminum titanium brass aluminum bronze chemical 302 304 316 316l 316lvm c276 x750 12614. Chemical compatibility chart metallic materials used in bal. In fact, for hot hydrochloric acid containing ferric ions as impurity, there are no suitable materials for use.
Keep away from incompatible materials see section 10. Examples of materials resistant to corrosion by hydrochloric acid include acidresistant glass, acidresistant ceramics, acidresistant rubber linings, rigid vinyl chloride, polyethylene, and acidresistant frp. This information, based on experience to date, is believed to be reliable. Titanium is resistant to dilute sulfuric and hydrochloric acid. So glass, being silicon dioxide, which is actually acidic, is a good example. Safety data sheet according to 29cfr19101200 and ghs rev. It is produced in several concentrations with the max. Coating systems pty ltd cannot anticipate all the conditions and situations under. Exposure controlspersonal protection control parameters. Containers of this material may be hazardous when empty, as they retain product residues vapors, liquids. Classes of incompatible chemicals should be segregated from each other during storage, according to hazard class. Sulfuric acid and hydrochloric acid dewpoint corrosionresistant. May decompose upon heating to product corrosive andor. Frp fiberglass reinforced plastic piping systems used in hydrochloric acid service are constructed of chemically resistant resins polyesters and epoxy based.
For slightly more moderate hydrochloric acid environments, inconel alloys are an excellent choice. Hcl solutions, hence the need to use corrosion resistant nickelbased alloys. Basically excuse the pun, anything thats not a base. Materials selection for use in hydrochloric acid surface science.
Hydrochloric acid these corrosion data are mainly based on results of general corrosion laboratory tests, carried out with pure chemicals and water solutions nearly saturated with air the corrosion rate can be quite different if the solution is free from oxygen. Hydrochloric acid hcl product material safety data sheet msds. Aqua regia 80%, hcl, 20%, hno d d d a d d c d d a d d d d c d. Once it is dissolved in water hydrochloric acid is formed and this is corrosive to many. The common stainless steel types, 304 and 316 should be considered non resistant to hydrochloric acid at any concentration and temperature.
The largest end uses for hydrochloric acid are steel pickling, oil well acidizing, food manufacturing, producing calcium chloride, and ore processing. High thermal stability and exceptional chemical resistant properties. Similarly, dry hydrogen chloride hcl is not corrosive to most metals. Corrosion resistance of ceramic materials to hydrochloric acid.
Acetic acid pure means for example a 98% acetic acid. Corrosion resistance of different materials compound iron and steel cast iron ni resist 300 series stainless monel inconel incoloy copper lead aluminum nickel acetic acid, crude x c f f c f x f f pure x a c f f a f vapors x f c f x c f 150 psi. Hardide is particularly effective at protecting against mineral acids, including hcl, nitric acid and h2so4. Request pdf materials selection for use in concentrated hydrochloric acid. Chemical resistance chart introduction corrosion and degradation depend on many parameters. It is classified as strongly acidic and can attack the skin over a wide composition range, since the hydrogen chloride completely dissociates in an aqueous solution. Hydrochloric acid must be handled with appropriate safety precautions because it is a highly corrosive liquid. Coleparmer does not warrant neither express nor implied that the information in this chart is accurate or complete or that any material is suitable for any purpose. Has exceptional corrosion resistance in sulfuric acid environments, and is used in a range of applications involving this acid including mixing tanks, heat exchangers, process piping, pickling equipment, pumps, valves, fasteners and fittings. Plastic is the cheapest possible container material.
578 544 1184 725 1329 114 1174 405 406 815 1434 453 1527 396 515 135 1177 98 387 95 501 1534 717 358 1472 218 903 798 867 130 892 77 489 384 1040 545 984 469 9 725 682