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63081

Sigma-Aldrich

Magnesium hydroxide

BioUltra, ≥99.0% (KT)

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Synonym(s):
Magnesium dihydroxide, Mg(OH)2
Linear Formula:
Mg(OH)2
CAS Number:
Molecular Weight:
58.32
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

product line

BioUltra

Quality Level

Assay

≥99.0% (KT)

impurities

Insoluble matter, passes filter test

mp

350 °C (lit.)

solubility

5 M HCl: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤1000 mg/kg

cation traces

As: ≤0.1 mg/kg
Ba: ≤10 mg/kg
Bi: ≤50 mg/kg
Ca: ≤5000 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤100 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mn: ≤10 mg/kg
Mo: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤100 mg/kg
Pb: ≤5 mg/kg
Sr: ≤10 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in 5 M HCl

UV absorption

λ: 260 nm Amax: 0.030
λ: 280 nm Amax: 0.025

SMILES string

O[Mg]O

InChI

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

InChI key

VTHJTEIRLNZDEV-UHFFFAOYSA-L

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1 of 4

This Item
310093137426063089
Magnesium hydroxide BioUltra, ≥99.0% (KT)

Sigma-Aldrich

63081

Magnesium hydroxide

Premium Grade
Magnesium hydroxide reagent grade, 95%

Sigma-Aldrich

310093

Magnesium hydroxide

Essential Grade
Magnesium hydroxide United States Pharmacopeia (USP) Reference Standard

USP

1374260

Magnesium hydroxide

-
Magnesium oxide BioUltra, ≥97.0% (calcined substance, KT)

Sigma-Aldrich

63089

Magnesium oxide

Premium Grade
impurities

Insoluble matter, passes filter test

impurities

-

impurities

-

impurities

insoluble matter, passes filter test, ≤0.002% total nitrogen (N)

mp

350 °C (lit.)

mp

350 °C (lit.)

mp

350 °C (lit.)

mp

2852 °C (lit.)

solubility

5 M HCl: 0.1 M at 20 °C, clear, colorless

solubility

-

solubility

-

solubility

5 M HCl: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤1000 mg/kg

anion traces

-

anion traces

-

anion traces

chloride (Cl-): ≤100 mg/kg, sulfate (SO42-): ≤10 mg/kg

cation traces

As: ≤0.1 mg/kg, Ba: ≤10 mg/kg, Bi: ≤50 mg/kg, Ca: ≤5000 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤100 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mn: ≤10 mg/kg, Mo: ≤5 mg/kg, Na: ≤100 mg/kg, Ni: ≤100 mg/kg, Pb: ≤5 mg/kg, Sr: ≤10 mg/kg, Zn: ≤5 mg/kg

cation traces

-

cation traces

-

cation traces

Al: ≤20 mg/kg, As: ≤0.1 mg/kg, Ba: ≤10 mg/kg, Bi: ≤10 mg/kg, Ca: ≤500 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤50 mg/kg, K: ≤50 mg/kg, Li: ≤50 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤2000 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤20 mg/kg, Zn: ≤5 mg/kg

General description

Magnesium hydroxide is commonly used as a non-systemic antacid for treating acid-peptic disorders. It helps in the treatment kidney stones patients by reducing the recurrence rate.

Application

Magnesium hydroxide is used as a dietary supplement to study its effects on the absorbtion of factors such as folic acid and iron and the release of the peptide hormone cholecystokinin (CCK).

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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R M Russell et al.
The Journal of laboratory and clinical medicine, 112(4), 458-463 (1988-10-01)
Intestinal folic acid transport is a saturable process with a pH optimum of 5.5 to 6.0. Because of the possible effects of antacids and acid-lowering drugs on the pH of the proximal small intestine, the influence of these drugs on
G Johansson et al.
The Journal of urology, 124(6), 770-774 (1980-12-01)
Prophylactic treatment with magnesium hydroxide ws instituted in 56 consecutive cases with renal calcium stones. The patients had been investigated previously with regard to the magnesium metabolism. The urinary magnesium excretion increased promptly and remained on a higher level during
B K Snyder et al.
Annals of emergency medicine, 33(4), 400-405 (1999-03-27)
Animal models have demonstrated that administration of magnesium hydroxide (MgOH) decreases serum iron levels after an iron overdose. We designed this study to determine the effect of MgOH administration on iron absorption and adverse effects after a supratherapeutic dose of
Jia Zhang et al.
Journal of hazardous materials, 239-240, 128-134 (2012-09-19)
This paper describes the enhanced Cr(VI)-contaminated soil remediation via a combination of electrokinetics (EK) with a calcined-hydrotalcite-based permeable reactive barrier (PRB). First, this combination proved to be feasible, and remarkably facilitated Cr(VI) remediation in a column test. Then, lightly-to-severely (0.16-1.65
Mayuko Y Kumasaka et al.
Archives of toxicology, 87(3), 439-447 (2012-10-27)
Various carcinomas including skin cancer are explosively increasing in arsenicosis patients who drink arsenic-polluted well water, especially in Bangladesh. Although well drinking water in the cancer-prone areas contains various elements, very little is known about the effects of elements except

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