Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. d�{"��qOƚ���K��H� Learn why and how alchemists attempted to conceal their chemical knowledge. [citation needed] This differs from the method of flotation used by most fish, which involves a gas-filled swim bladder. Wässrige Lösungen reagieren leicht sauer – der pH-Wert einer 1%igen Lösung beträgt etwa 5,5. Solutions of ammonium chloride are mildly acidic. Keep a list of all your medications with you, and share the list with your doctor and pharmacist. [29]) Ammonium chloride was then transported along the Silk Road eastwards to China and westwards to the Muslim lands and Europe. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. Wässrige Lösungen reagieren leicht sauer der pH-Wert einer 1%igen Lösung beträgt etwa 5,5. Ammonium chloride is a white crystalline solid. It works as a flux by cleaning the surface of workpieces by reacting with the metal oxides at the surface to form a volatile metal chloride. endstream endobj 902 0 obj <>stream No, ammonium chloride is not magnetic. If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Ammonium chloride reacts with a strong base, like sodium hydroxide, to release ammonia gas: Similarly, ammonium chloride also reacts with alkali metal carbonates at elevated temperatures, giving ammonia and alkali metal chloride: A 5% by weight solution of ammonium chloride in water has a pH in the range 4.6 to 6.0.[12]. (the time at which the permeation rate is equal to 0.1 µg/cm2/min) The primary hazard is the threat posed to the environment. including trade names and synonyms. Its principal uses are as a nitrogen supply in fertilizers and as an electrolyte in dry cells, and it is also extensively employed as a constituent of galvanizing, tinning, and soldering fluxes to remove oxide coatings from metals and thereby improve the adhesion of the solders. Its expectorant action is caused by irritative action on the bronchial mucosa, which causes the production of excess respiratory tract fluid, which presumably is easier to cough up. It is soluble in water(37%). It is the user's responsibility to Otherwise, call a poison control center right away. The natural, mineralogical form of ammonium chloride is known as sal ammoniac. Ammoniumchlorid ist das Ammoniumsalz der Salzsäure. © 2005 - 2019 WebMD LLC. Ammonium chloride is used in the textile and leather industry, in dyeing, tanning, textile printing and cotton clustering. It is soluble in water(37%). Where did you or where do you plan to purchase? It has very poor cleavage and is brittle to conchoidal fracture. The dominant application of ammonium chloride is as a nitrogen source in fertilizers (corresponding to 90% of the world production of ammonium chloride) such as chloroammonium phosphate. 0R��TΫi�Iy��Y-[ցae�'�Gg���z���C���YFZsJ���uv�(Y c�ު�1 %PDF-1.6 %���� Unless otherwise stated, permeation was measured for single chemicals. Ammonium chloride is used as an expectorant in cough medicine. [8] Auch zum Entrußen von Kaminen, Kachel-, Kohle- und Ölöfen findet es Verwendung. Around the turn of the 20th century, ammonium chloride was used in aqueous solution as the electrolyte in Leclanché cells that found a commercial use as the "local battery" in subscribers' telephone installations. Slowly releases hydrogen chloride (USCG, 1999). equipment needed. [11], Ammonium chloride appears to sublime upon heating but actually decomposes into ammonia and hydrogen chloride gas.[3]. ... in connection with this information. Mustard, Tabun and VX Nerve Agent) have been tested at 22°C and 50% [22] The information set forth herein reflects laboratory Normalized breakthrough times Ammonium chloride is used as a flux in preparing metals to be tin coated, galvanized or soldered. 12 Medicines That Could Help. All chemicals have It is also found around some types of volcanic vents. chemicals, such as strong acids, and should not be worn when National Oceanic and Atmospheric Administration. The newer quaternary ammonium compounds (i.e. CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. Mit Ammoniak versetzte Ammoniumchlorid-Lösungen können auch als chemischer Puffer verwendet werden. Fumes are irritating to eyes. US residents can call their local poison control center at 1-800-222-1222. Ammoniumchlorid ist schlecht in Ethanol löslich und unlöslich in Aceton und Ether. All rights reserved. Much is made of sal ammoniac, the reactive powers of which seem to have given Western alchemy a new lease on life. endstream endobj 903 0 obj <>stream Ammonium chloride is a white crystalline solid. Black Friday Sale! Corrections? Selected from data included with permission and copyrighted by First Databank, Inc. Bei bestehender Leber- oder Nierenerkrankung oder Kaliummangel ist entsprechend Vorsicht geboten. Ammonium chloride is a colourless crystalline substance. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. Office of Response and Restoration, testing laboratories using ASTM F739, EN369, EN 374-3, EN ISO 6529 Inhalation of fumes irritates respiratory passages. Giant squid and some other large squid species maintain neutral buoyancy in seawater through an ammonium chloride solution which is found throughout their bodies and is less dense than seawater. Ammoniumchlorid fällt als Nebenprodukt bei der Gewinnung von Soda nach dem Solvay-Verfahren an: Ammoniumchlorid ist ein farbloses, gut wasserlösliches Salz, welches kubische Kristalle bildet. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use. It also is produced by reaction of ammonium sulfate and sodium chloride solutions. Ammonium chloride has been used historically to produce low temperatures in cooling baths. Around 800 A.D. the Arabs of Egypt discovered ammonium chloride in the soot that resulted from burning camel dung, and this source became an alternative to those in Central Asia. The main crops fertilized this way are rice and wheat in Asia. Acidic salts, such as AMMONIUM CHLORIDE, are generally soluble in water. Ammonium salts are an irritant to the gastric mucosa and may induce nausea and vomiting. Contact with skin may cause irritation. [20], In paleontology, ammonium chloride vapor is deposited on fossils, where the substance forms a brilliant white, easily removed and fairly harmless and inert layer of tiny crystals. Ar-Rāzī and the Jābirian writers were really trying to make gold, through the catalytic action of the elixir. for a particular use and assume no liability in connection with any use of Did you or will you purchase this product in-store or online? are outside our control, we make no warranties, express or implied,