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magnesium bis(hydrogen carbonate)

magnesium bis(hydrogen carbonate)

CAS: 2090-64-4

Molecular Formula: C2H2MgO6

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magnesium bis(hydrogen carbonate) - Names and Identifiers

Name magnesium bis(hydrogen carbonate)
Synonyms MagnesiuM bis
Einecs 218-240-1
MAGNESIUMBICARBONATE
Bis(carboxyoxy)magnesium
Magnesium hydrogen carbonate
magnesium bis(hydrogen carbonate)
Magnesium bis(hydrogen carbonate)
CAS 2090-64-4
EINECS 218-240-1
InChI InChI=1/2CH2O3.Mg/c2*2-1(3)4;/h2*(H2,2,3,4);/q;;+2/p-2

magnesium bis(hydrogen carbonate) - Physico-chemical Properties

Molecular FormulaC2H2MgO6
Molar Mass146.33868
Boling Point333.6°C at 760 mmHg
Flash Point169.8°C
Vapor Presure2.58E-05mmHg at 25°C

magnesium bis(hydrogen carbonate) - Nature

Open Data Verified Data

This product is hydrated basic magnesium carbonate, magnesium oxide content of 40.0% ~ 43.5%, white powder, non-toxic, odorless, almost tasteless. Stable in air, almost insoluble in water or ethanol, but can make water weakly alkaline. Dissolved in dilute acid by the evolution of carbon dioxide. Above 300 deg C decomposition, release water and carbon dioxide, magnesium oxide.

Last Update:2024-01-02 23:10:35

magnesium bis(hydrogen carbonate) - Preparation Method

Open Data Verified Data
  1. brine-soda ash method: first, the bitter brine and sodium carbonate solution are pretreated, and then the precipitation reaction is carried out, and the medicinal magnesium carbonate is prepared by filtration and washing, dehydration, drying, and crushing.
  2. magnesite metathesis method: Using ammonium sulfate solution and magnesite to carry out metathesis reaction to generate magnesium sulfate solution, and then the recovered ammonia is mixed into carbonized ammonia water, and Basic Magnesium carbonate is precipitated with magnesium sulfate solution, which is filtered and washed, dehydration, drying, grinding and other processes to prepare medicinal magnesium carbonate.
Last Update:2022-01-01 11:01:47

magnesium bis(hydrogen carbonate) - Standard

Authoritative Data Verified Data

This product is hydrated basic magnesium carbonate. The content is calculated as magnesium oxide (MgO) and should be 40.0% to 43.5%.

Last Update:2024-01-02 23:10:35

magnesium bis(hydrogen carbonate) - Trait

Authoritative Data Verified Data
  • This product is white granular powder; Odorless.
  • This product is almost insoluble in water or ethanol, but can make water weak alkaline; In dilute acid can bubble boiling solution.
Last Update:2022-01-01 13:42:43

magnesium bis(hydrogen carbonate) - Use

Open Data Verified Data

mainly used in the pharmaceutical industry, for the treatment of gastric and duodenal ulcer and other conditions.

Last Update:2022-01-01 11:01:46

magnesium bis(hydrogen carbonate) - Differential diagnosis

Authoritative Data Verified Data

take this product, add dilute hydrochloric acid to bubble boiling solution; Solution of magnesium salt identification reaction (General rule 0301).

Last Update:2022-01-01 13:42:43

magnesium bis(hydrogen carbonate) - Safety

Open Data Verified Data

with the lining of polyethylene plastic bag, plastic woven bag double layer packaging or plastic bag coated single layer packaging.

Last Update:2022-01-01 11:01:47

magnesium bis(hydrogen carbonate) - Exam

Authoritative Data Verified Data

acidic solution color

take this product l.Og, add glacial acetic acid solution (6-50)20ml, ultrasonic to dissolve, if necessary, filtering, the solution should be colorless; If color, with yellow green 2 = No. Standard Colorimetric solution (General rule 0901 first method) comparison, not deeper.


chloride

Take 5.0g of this product, add 20ml of water and 30ml of acetic acid to dissolve, boil for 2 minutes, let cool, filter, wash the filter residue with dilute acetic acid, combine the wash liquid and filtrate, dilute to 50ml with dilute acetic acid, as a test solution. Take 2ml, add water to make 25ml, check according to law (General rule 0801), compared with the standard sodium chloride solution 7.0ml made of the control solution, not more concentrated (0.035%).


sulfate

take 1 ml of the test solution under the item of chloride precisely, dilute it with water to make it 25ml, take 10ml of the solution, and check it according to law (General rule 0802), not more concentrated (0.5%) than the control solution made of standard potassium sulfate solution.


calcium oxide

take 5ml of the test solution under the item of chloride precisely, add 300ml of water, add 10ml of triethanolamine solution (3-10) and 10ml of 45% potassium hydroxide solution, place it for 5 minutes, add calcium red indicator 0.lg, with ethylenediamine tetraacetic acid disodium titration solution (0.Olmol/L) titration until the solution turned from magenta to blue and the results of the titration were corrected with a blank test. Each lml of ethylenediamine tetraacetic acid disodium titration solution (0.Olmol/L) is equivalent to 0.5608mg of CaO, this product containing calcium oxide shall not exceed 0.60%.


soluble salts

take this product l. After 50ml of water was added, the mixture was boiled for 5 minutes and filtered. The filtrate was evaporated to dryness on a water bath and dried at 105 ° C. For 1 hour.


insolubles in acid

take 5g of this product, add water 75ml, and then add a small amount of hydrochloric acid, with the addition of stirring until no longer dissolved, boiled for 5 minutes, filtered, filter residue washed with water until the washing solution no longer show chloride reaction, the residue should not exceed 2.5mg(0.05%).


Iron Salt

take 0.25g of this product, add 5ml of dilute nitric acid, boil for 1 minute, let it cool, dilute it with water to make 0807, and check it according to law (general rule), it should not be deeper (0.02%) than the control solution made from of standard iron solution.


Mercury

take about lg of this product for precision weighing, put it into 50ml measuring flask respectively, add 8% hydrochloric acid 30ml and 5% potassium permanganate solution 0.5ml in one part, shake well, 5% hydroxylamine hydrochloride solution was added dropwise until the purple color disappeared. The solution was diluted with 8% hydrochloric acid solution until the score was reached, and then the solution was shaken; another precision plus standard mercury solution [precise quantity of mercury single element standard solution appropriate amount, quantitative dilution with water made per 1 ml of mercury (Hg)0.lug solution] 5ml, operated in the same manner, as a control solution. According to Atomic Absorption Spectrophotometry (General rule 0406 second method), measured at the wavelength of 253.6nm, should comply with the regulations (0.00005%).


Heavy metals

take 5ml of the test solution under the chloride item, add 1 drop of phenolphthalein indicator solution and an appropriate amount of ammonia test solution to make the solution light red, and add acetate buffer (pH 3.5) the mixture is mixed with an appropriate amount of 0.5 and water, and then added with 0821g of ascorbic acid. After dissolving, the mixture is checked according to law (General rule method 1) and allowed to stand for 5 minutes for color comparison, and the content of heavy metals shall not exceed 30 parts per million.


arsenic salt

Take 10ml of the test solution under the item of chloride accurately, add 5ml of hydrochloric acid, add water to make 28ml, check according to law (General Principles 0822 first law), should comply with the regulations (0.0002%).

Last Update:2022-01-01 13:42:45

magnesium bis(hydrogen carbonate) - Content determination

Authoritative Data Verified Data

take about lg of this product, weigh it accurately, add 5ml of water to wet it, add 30ml of sulfuric acid titration solution (0.5mol/L) to dissolve it, add 1 drop of methyl orange indicator solution, titrate with sodium hydroxide titration solution (1 mol/L); Subtract the volume (ml) of mixed calcium oxide from the volume (ml) of consumption sulfuric acid titration solution (0.5mol/L), calculation. Each 1 ml of sulfuric acid titration solution (0.5mol/L) corresponds to 20.15mg of MgO or 28.04mg of CaO.

Last Update:2022-01-01 13:42:45

magnesium bis(hydrogen carbonate) - Category

Authoritative Data Verified Data

antacids.

Last Update:2022-01-01 13:42:46

magnesium bis(hydrogen carbonate) - Storage

Authoritative Data Verified Data

sealed storage.

Last Update:2022-01-01 13:42:46

magnesium bis(hydrogen carbonate) - Reference Information

EPA chemical substance information information is provided by: ofmpeb.epa.gov (external link)
Last Update:2024-04-09 20:49:11
magnesium bis(hydrogen carbonate)
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CAS: 2090-64-4
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Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: magnesium bis(hydrogen carbonate) Request for quotation
CAS: 2090-64-4
Tel: 0086-551-65418684
Email: sales@tnjchem.com
     info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Shanghai Liangjiang Titanium White product Co.,Ltd
Product Name: magnesium bis(hydrogen carbonate) Request for quotation
CAS: 2090-64-4
Tel: 021-52210848
Email: king@lj-group.com
Mobile: 13916566563
QQ: 727190627 Click to send a QQ messageSend QQ message
View History
magnesium bis(hydrogen carbonate)
2-CYANOPHENYLZINC BROMIDE
4-AMINO-5-HYDROXY-3-(4-NITROPHENYLAZO)-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
TETRAHYDROLINALOOL
115869-17-5
1-苄基-3-(BOC-氨基)吡咯烷-3-甲酸
(4-氟吡啶-3-基)硼酸
BOC-D-M-TYROSINE(OALLYL)
阿利吉仑中间体SP-4
diethyl 3-cyanobenzylphosphonate
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