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Merck
CN

M5421

Magnesium hydroxide

BioXtra, ≥95%

Synonym(s):

Magnesium dihydroxide, Mg(OH)2

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About This Item

Linear Formula:
Mg(OH)2
CAS Number:
1309-42-8
Molecular Weight:
58.32
NACRES:
NA.21
PubChem Substance ID:
24896999
UNSPSC Code:
12352200
EC Number:
215-170-3
MDL number:
MFCD00011104
Assay:
≥95%
Grade:
BioPerformance Certified

Key Documents

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InChI key

VTHJTEIRLNZDEV-UHFFFAOYSA-L

InChI

1S/Mg.2H2O/h;2*1H2/q+2;;/p-2

SMILES string

O[Mg]O

grade

BioPerformance Certified

product line

BioXtra

assay

≥95%

impurities

≤0.01% Phosphorus (P), ≤0.1% Insoluble matter

mp

350 °C (lit.)

solubility

5 M HCl: 0.1 M, clear, yellow

anion traces

chloride (Cl-): ≤0.5%

cation traces

Al: ≤0.02%, Ca: ≤0.7%, Cu: ≤0.0005%, Fe: ≤0.02%, K: ≤0.005%, NH4+: ≤0.05%, Na: ≤0.05%, Pb: ≤0.001%, Zn: ≤0.002%

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Application

Magnesium hydroxide has been used in the synthesis of brucite.

Biochem/physiol Actions

Magnesium hydroxide is a flame retardant. Magnesium hydroxide is commonly used as an antacid which has a long-lasting effect. The liquid formulation of magnesium hydroxide is called milk of magnesia. It is used as a laxative. It is used in the treatment of diarrhea along with aluminium hydroxide. The naturally occurring form of magnesium hydroxide is brucite.

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SLCF6853
SLCD1137
SLBW9619
SLBW6313
SLBV0158

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Plastics Additives: A Rapra Market Report, 57-57 (2005)
Lehne's Pharmacotherapeutics for Advanced Practice Providers - E-Book, 714-714 (2017)
Kinetics of the chrysotile and brucite dehydroxylation reaction: a combined non-isothermal/isothermal thermogravimetric analysis and high-temperature X-ray powder diffraction study
Trittschack R, et al.
Physics and Chemistry of Minerals, 41(3), 197-214 (2014)
Fire Retardancy of Polymeric Materials, 293-293 (2000)
Andrzej Tarnawski et al.
Current pharmaceutical design, 19(1), 126-132 (2012-09-07)
This article updates current views on gastric mucosal defense, injury, protection and ulcer healing with a focus on mucosal protective and ulcer healing actions of antacids. The gastric mucosa is continuously exposed to a variety of noxious factors, both endogenous
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