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1309-42-8

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1309-42-8 Usage

General Description

Magnesium hydroxide, also known as milk of magnesia, is a compound that consists of magnesium, oxygen, and hydrogen. It is a white, powdery substance that is commonly used as an antacid and laxative to relieve constipation and neutralize stomach acid. When taken orally, it reacts with the hydrochloric acid in the stomach to form magnesium chloride and water, thereby reducing the acidity in the stomach and providing relief from heartburn and indigestion. It is also used as a component in some deodorants and as a flame retardant in various materials. Additionally, magnesium hydroxide has applications in water treatment and as a precursor to other magnesium compounds.

Check Digit Verification of cas no

The CAS Registry Mumber 1309-42-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,0 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1309-42:
(6*1)+(5*3)+(4*0)+(3*9)+(2*4)+(1*2)=58
58 % 10 = 8
So 1309-42-8 is a valid CAS Registry Number.
InChI:InChI=1/Mg.H2O/h;1H2/q+2;

1309-42-8 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (12367)  Magnesium hydroxide, 95-100.5%   

  • 1309-42-8

  • 100g

  • 148.0CNY

  • Detail
  • Alfa Aesar

  • (12367)  Magnesium hydroxide, 95-100.5%   

  • 1309-42-8

  • 500g

  • 331.0CNY

  • Detail
  • Alfa Aesar

  • (12367)  Magnesium hydroxide, 95-100.5%   

  • 1309-42-8

  • 2.5kg

  • 1059.0CNY

  • Detail
  • Sigma-Aldrich

  • (310093)  Magnesiumhydroxide  reagent grade, 95%

  • 1309-42-8

  • 310093-25G

  • 343.98CNY

  • Detail
  • Sigma-Aldrich

  • (310093)  Magnesiumhydroxide  reagent grade, 95%

  • 1309-42-8

  • 310093-500G

  • 606.06CNY

  • Detail
  • Sigma-Aldrich

  • (310093)  Magnesiumhydroxide  reagent grade, 95%

  • 1309-42-8

  • 310093-2KG

  • 1,866.15CNY

  • Detail
  • Vetec

  • (V900204)  Magnesiumhydroxide  Vetec reagent grade

  • 1309-42-8

  • V900204-500G

  • 148.59CNY

  • Detail
  • Aldrich

  • (632309)  Magnesiumhydroxide  nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis

  • 1309-42-8

  • 632309-25G

  • 1,953.90CNY

  • Detail
  • Aldrich

  • (632309)  Magnesiumhydroxide  nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis

  • 1309-42-8

  • 632309-100G

  • 5,914.35CNY

  • Detail
  • USP

  • (1374260)  Magnesiumhydroxide  United States Pharmacopeia (USP) Reference Standard

  • 1309-42-8

  • 1374260-1G

  • 4,588.74CNY

  • Detail
  • Sigma

  • (M5421)  Magnesiumhydroxide  BioXtra, ≥95%

  • 1309-42-8

  • M5421-1KG

  • 1,565.46CNY

  • Detail

1309-42-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name magnesium dihydroxide

1.2 Other means of identification

Product number -
Other names Magnesium Hydroxide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Processing Aids and Additives
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1309-42-8 SDS

1309-42-8Synthetic route

oxygen
80937-33-3

oxygen

magnesium
7439-95-4

magnesium

A

(MgO)2

(MgO)2

B

magnesium dioxide
1309-42-8

magnesium dioxide

Conditions
ConditionsYield
In neat (no solvent) byproducts: MgO3; codeposition of pulsed laser evaporated Mg atoms with O2 in excess Ar on 10 K substrate; mechanism discussed; not isolated, detn. by IR;
oxygen
80937-33-3

oxygen

magnesium
7439-95-4

magnesium

magnesium dioxide
1309-42-8

magnesium dioxide

Conditions
ConditionsYield
With N2 In neat (no solvent, gas phase) Kinetics; reaction over temp. range of 350-624 K in presence of N2 by static-flow reaction; detected by laser pulse / probe technique;
magnesium
7439-95-4

magnesium

dinitrogen monoxide
10024-97-2

dinitrogen monoxide

A

(MgO)2

(MgO)2

B

magnesium dioxide
1309-42-8

magnesium dioxide

Conditions
ConditionsYield
In neat (no solvent) byproducts: (OMgO)(N2), N2; codeposition of pulsed laser evaporated Mg atoms with N2O in excess Ar on 10 K substrate; mechanism discussed; not isolated, detn. by IR;

1309-42-8Downstream Products

1309-42-8Related news

Fire Extinguishing Efficiency of Magnesium hydroxide (cas 1309-42-8) Powders under Different Particle Size08/21/2019

After Montreal protocol, more and more new materials have been applied as the substitutes of Halon. Much attention has been paid to fire extinguishing efficiency of alkali metal salts and ammonium phosphate salts, but the effects of particle sizes have not been studied sufficiently. The fire-ext...detailed

Performance of Freshly Generated Magnesium hydroxide (cas 1309-42-8) (FGMH) for Reactive Dye Removal08/19/2019

Coagulation-flocculation (CF) is an essential process for water and wastewater treatment plants. Whilst compared with the conventional coagulants, the freshly generated magnesium hydroxide (FGMH) is environmental friendly within its coagulative and adsorptive jellied sediment. However, decolorat...detailed

Crystallization of calcium carbonate and Magnesium hydroxide (cas 1309-42-8) in the heat exchangers of once-through Multistage Flash (MSF-OT) desalination process08/18/2019

In this paper, a dynamic model of fouling is presented to predict the crystallization of calcium carbonate and magnesium hydroxide inside the condenser tubes of Once-Through Multistage Flash (MSF-OT) desalination process. The model considers the combination of kinetic and mass diffusion rates ta...detailed

Ultrasound-assisted synthesis of Magnesium hydroxide (cas 1309-42-8) nanoparticles from magnesium08/16/2019

Acoustic cavitation in water provides special kinetic and thermodynamic conditions for chemical synthesis and nanostructuring of solids. Using cavitation phenomenon, we obtained magnesium hydroxide from pure magnesium. This approach allows magnesium hydroxide to be synthesized without the requir...detailed

The study on corrosion resistance of superhydrophobic Magnesium hydroxide (cas 1309-42-8) coating on AZ31B magnesium alloy08/15/2019

Superhydrophobic technology is very practical for anti-corrosion, anti-rust, and anti-fouling in the construction industry, automobile industry and metal industry. Herein, a facile approach was developed to fabricate superhydrophobic and anti-corrosive (SAC) coatings on the surface of magnesium ...detailed

1309-42-8Relevant articles and documents

Unusual Kinetic Behavior of the Reactions Mg + O2 + M and Ca + O2 + M (M = N2, He) over Extended Temperature Ranges

Nien, Chia-Fu,Rajasekhar, B.,Plane, John M. C.

, p. 6449 - 6456 (1993)

The reaction Mg + O2 + N2 was studied by a static-flow technique in which the rate coefficient was determined relative to the diffusion coefficient of Mg(1S) atoms in N2.This yielded k(349K-30exp-1/RT>, where the quoted uncertainty is 2?.This result is in very good accord with the results of a recent flow-tube study which found the rate coefficient to be about 3 times slower when He was the third body.The reaction Ca + O2 + M (M = N2, He) was then studied by the pulsed laser photolysis of a Ca atom precursor, followed by time-resolved laser-induced fluorescence of the resulting Ca(1S) atoms.The reaction with N2 as the third body is between 2 and 3 times faster than the reaction with He, and the rate coefficients for both third bodies increase between 218 and 340 K and then decrease up to 1100 K.Ab initio calculations and RRKM theory are then employed to demonstrate that the unusual temperature dependences of both the Mg and Ca reactions are most probably caused by barriers in the entrance channels of these reactions.The recommended rate coefficients between 120 and 2000 K are then given by log10(k(Mg+O2+N2)) = -392.7 + 439.1x - 203.2x2 + 42.56x3 - 3.413x4, log10(k(Mg+O2+He)) = -394.5 + 442.4x - 205.0x2 + 42.94x3 - 3.436x4, log10(k(Ca+O2+N2)) = -97.75 + 84.66x - 39.85x2 + 8.522x3 - 0.7093x4, and log10(k(Ca+O2+He)) = -93.67 + 78.02x - 35.76x2 + 7.369x3 - 0.5899x4, where k is in units of cm6 molecule-2s-1, x = log10(T), and the uncertainty in k is estimated to be +/-30percent.Finally, the implications of these results for the chemistry of meteor-ablated Mg and Ca in the upper atmosphere are considered.

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