Hydrogen chloride (acid)
HYDROGEN CHLORIDE GAS ONLY
Industrial Synthetic Hydrochloric Acid
Food Additives Hydrochloric Acid
H-36% Industrial Hydrochloric Acid
|Molar Mass||36.4609 g/mol|
|Boling Point||5.8°C at 760 mmHg|
|Vapor Presure||1560mmHg at 25°C|
|Physical and Chemical Properties|
appearance and properties: colorless or yellowish fuming liquid, with a pungent sour taste.
|Use||Basic chemical raw materials, used in petroleum, chemical, metallurgy, printing and dyeing, food and other industrial sectors.|
|Hazard Symbols||C - Corrosive|
|Risk Codes||R34 - Causes burns|
R37 - Irritating to the respiratory system
|Safety Description||S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.|
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
|UN IDs||UN 1789|
|Raw Materials||Potassium chloride|
|Downstream Products||Phosphorous acid|
This product is a colorless irritating aqueous solution, volatile, irritating odor. Because it contains trace iron (iron oxide), free chlorine or organic matter, it is light yellow. Strong acid, can be mixed with water and ethanol in any ratio. Strong corrosive, and alkali neutralization, and phosphorus, sulfur and other non-metallic substances have no effect.
This product containing HC1 should be 36.0% ~ 38.0% (g /g).
hydrogen gas and chlorine gas generated in the process of producing caustic soda by salt electrolysis in the chlor-alkali industry are passed into a synthesis furnace for combustion to generate hydrogen chloride gas, which is cooled and absorbed with water to prepare hydrochloric acid. Alternatively, HCI may be obtained by reacting salt with H2S04 and absorbed with water.
This product is colorless smoke clear liquid; There is a strong stimulation of odor; Strong acid.
chemical cleaning with hydrochloric acid as the main agent has the advantages of strong function, fast speed, obvious effect, convenient use, low cost, suitable for carbon steel, copper, but not for austenitic stainless steel, chemical cleaning of titanium and other materials.
hydrochloric acid is toxic and corrosive. Exposure to concentrated hydrochloric acid can lead to severe burns and can cause permanent blindness by splash into the eye. Contact with the skin will produce dermatitis and photosensitization. Inhalation of hydrochloric acid vapor can cause Cough, dysphagia, Nausea, Vomit, extreme thirst, Diarrhea, and circulatory collapse and even death. When contacting and using hydrochloric acid, especially concentrated hydrochloric acid, the prescribed protective equipment should be worn to protect the eyes and skin. Measures should be taken to prevent the escape of hydrogen chloride gas from contaminating the atmosphere and entering the body. Do not mix with sulfuric acid, nitric acid; Do not mix with alkali, metal powder, oxidant, cyanide and water combustion products. Transport shall be carried out in accordance with the requirements of the relevant rules for the transport of dangerous goods.
take 5.4g of this product, dilute to 20ml with water, cool down, add 0.2m l of starch indicator solution containing zinc and potassium iodide, and the solution should not show blue within 10 minutes.
take 3ml of this product, dilute to 10ml with water, cool, add 1 drop of chloroform lm l and 0.002mol/L potassium permanganate solution, shake, chloroform layer should be colorless.
take 25g of this product, add 2 drops of sodium carbonate test solution, and put it on a water bath to evaporate; Add 20ml of water to dissolve the residue, check according to law (General rule 0802), not more concentrated (0.0005%) than the control solution made from of standard potassium sulfate solution.
take fresh boiling cold water 5 0mu plus lg of potassium iodide, 0.005mol/L iodine solution 0 .1 5ml and 1.5 of starch indicator solution, shake well; Another 5ml of this product, add 50ml of New boiling supercooled water to dilute, add to the above solution, shake, the blue color of the solution should not disappear completely.
take 0841g of this product, add 2 drops of sulfuric acid, steam dry, check according to law (general rule), residue shall not pass 2mg(0. 002%).
Take 30g of this product, put it on a water bath and evaporate it to dryness. Add 25ml of water to the residue and check it according to law (General rule 0807). Compared with the control solution made of 0M l, it should not be deeper (0.0001%).
Take 10g of this product, put it on a water bath to dry, add 2M l of acetate buffer (pH 0821) and an appropriate amount of water to make it U for inspection according to law (General rule first method), heavy metals should not be more than 2 parts per million.
take this product 0822G, add water 22ml after dilution, add hydrochloric acid 5ml, according to the law (General Principles 0.0001% first law>, should comply with the provisions ().
take about 3ml of this product, put it in a plug Erlenmeyer flask with about 20ml of stored water and precise weighing, add 25ml of water and 2 drops of Methyl red indicator solution, titration with sodium hydroxide titrant (lm o l/L). Each lm l sodium hydroxide titration solution (lm o l/L) corresponds to 36.46 mg of hc1.
pharmaceutical excipients, p H value regulator.