Muriatic acid
Hydrochloric acid
CAS: 7647-01-0
Molecular Formula: HCl
Muriatic acid - Names and Identifiers
Muriatic acid - Physico-chemical Properties
| Molecular Formula | HCl |
| Molar Mass | 36.4609 |
| Melting Point | -35℃ |
| Boling Point | 5.8°C at 760 mmHg |
| Water Solubility | miscible |
| 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. |
Muriatic acid - Risk and Safety
| 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 |
Muriatic acid - Upstream Downstream Industry
| Raw Materials | Potassium chloride Sodium Chloride Chlorine Hydrogen |
| Downstream Products | Phosphorous acid Tungstic acid Chlorosulfonic acid Ferrous chloride Aluminum chloride |
Muriatic acid - Nature
Open Data Verified Data
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.
Last Update：2024-01-02 23:10:35
Muriatic acid - Preparation Method
Open Data Verified Data
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.
Last Update：2022-01-01 08:53:05
Muriatic acid - Standard
Authoritative Data Verified Data
This product containing HC1 should be 36.0% ~ 38.0% (g /g).
Last Update：2024-01-02 23:10:35
Muriatic acid - Trait
Authoritative Data Verified Data
This product is colorless smoke clear liquid; There is a strong stimulation of odor; Strong acid.
Last Update：2022-01-01 11:24:24
Muriatic acid - Use
Open Data Verified Data
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.
Last Update：2022-01-01 08:53:06
Muriatic acid - Differential diagnosis
Authoritative Data Verified Data
- This product is chloride identification reaction (General 0301).
- wet ammonia test solution with glass rod contacts the surface of the product, producing obvious white smoke.
- a solution of hydrochloric acid (1-100) was taken to make the blue litmus paper red.
Last Update：2022-01-01 11:24:24
Muriatic acid - Safety
Open Data Verified Data
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.
Last Update：2022-01-01 08:53:06
Muriatic acid - Exam
Authoritative Data Verified Data
free chlorine or bromine
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.
bromide or iodide
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.
sulfate
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.
sulfite
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.
ignition residue
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%).
Iron Salt
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%).
Heavy metals
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.
arsenic salt
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 ().
Last Update：2022-01-01 11:24:25
Muriatic acid - Content determination
Authoritative Data Verified Data
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.
Last Update：2022-01-01 11:24:25
Muriatic acid - Category
Authoritative Data Verified Data
pharmaceutical excipients, p H value regulator.
Last Update：2022-01-01 11:24:25
Muriatic acid - Storage
Authoritative Data Verified Data
sealed storage.
Last Update：2022-01-01 11:24:26
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