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Magnesium sulfate

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Name

Magnesium sulfate

EINECS 231-298-2
CAS No. 7487-88-9 Density 2.66 g/cm3
PSA 88.64000 LogP -0.25720
Solubility H2O: 1 M at 20 °C Melting Point 1124 °C
Formula MgSO4 Boiling Point 330 °C at 760 mmHg
Molecular Weight 120.369 Flash Point N/A
Transport Information N/A Appearance White crystalline powder
Safety 22-24/25-36-26 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 7487-88-9 (Magnesium sulfate) Hazard Symbols IrritantXi
Synonyms

Arrosalt2327;Epsom salt;Epsom salts;MG-OK 100;MN 30;Magnesium sulfate (1:1);Mg-OK;OT-S;OT-S (drying agent);Sulfuric acid magnesium salt;Sulfuric acid, magnesium salt (1:1);TomixOT;Magnesium sulfate anhydrous;Magnesium sulfate;Magnesium Sulphate;

Article Data 216

Magnesium sulfate Synthetic route

7664-93-9

sulfuric acid

10034-85-2

hydrogen iodide

magnesium oxide

A

7487-88-9

magnesium sulfate

B

magnesium iodide

Conditions
ConditionsYield
70 °C; 1-2. step of Mg-S-I water splitting cycle;A 100%
B 100%

copper(ll) sulfate pentahydrate

magnesium oxide

A

7487-88-9

magnesium sulfate

B

copper(II) oxide

Conditions
ConditionsYield
In solid byproducts: H2O; mixt. heating in derivatograph in Pt crucible at 10 K/min in air up to 850°C; TG, DTG, DTA;A 78.7%
B n/a
In solid byproducts: H2O; mixt. heating in derivatograph in Pt crucible at 10 K/min in air up to 1000°C; TG, DTG, DTA;A 47.2%
B n/a

zinc(II) sulfate heptahydrate

magnesium oxide

A

7487-88-9

magnesium sulfate

B

zinc(II) oxide

Conditions
ConditionsYield
In solid byproducts: H2O; mixt. heating in derivatograph in Pt crucible at 10 K/min in air up to 1000°C; TG, DTG, DTA;A 73.8%
B n/a

dolomite

7446-09-5

sulfur dioxide

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
In water byproducts: CaSO4; aq. suspension of dolomite was treated with SO2-containing gas with formation of sol. sulfites, air was passed through the soln. forming the sulfates, Ca was removed as CaSO4;; MgSO4-soln. obtained;;

dolomite

7446-09-5

sulfur dioxide

A

calcium sulfate

B

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
In solid heating at 600-900 °C; X-ray diffraction;

dolomite

7664-93-9

sulfuric acid

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
In sulfuric acid dolomite was dissolved in H2SO4;; MgSO4 was not isolated;;
In sulfuric acid dolomite was dissolved in H2SO4;; MgSO4 was not isolated;;

dolomite

sodium hydrogensulfite

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
In water byproducts: CaSO4; aq. suspension of dolomite was treated with NaHSO3-soln. at elevated temp., air was passed through the soln.;; MgSO4-soln. obtained;;
7681-38-1

sodium hydrogen sulfate

dolomite

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
In water dolomite was dissolved in NaHSO4-soln.;; MgSO4 was not isolated;;

ammonium sulfate

dolomite

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
In water byproducts: CaSO4; calcined dolomite was heated with (NH4)2SO4-soln., Mg was dissolved as MgSO4 while Ca remained as CaSO4 in the residue;; MgSO4 was not isolated;;
In water byproducts: CaSO4; calcined dolomite was heated with (NH4)2SO4-soln., Mg was dissolved as MgSO4 while Ca remained as CaSO4 in the residue;; MgSO4 was not isolated;;

magnesium sulfate heptahydrate

7487-88-9

magnesium sulfate

Conditions
ConditionsYield
byproducts: H2O; thermal dehydration;
With sulfuric acid In neat (no solvent) byproducts: H2O; heating with H2SO4 to avoid decompn., removal of the excess of H2SO4 at 600 to 700°C;;
With sulfuric acid In neat (no solvent) byproducts: H2O; heating with H2SO4 to avoid decompn.;;

Magnesium sulfate Specification

The IUPAC name of Magnesium sulphate is magnesium sulfate. With the CAS registry number 7487-88-9, it is also named as Sulfuric acid, magnesium salt (1:1). The product's categories are Inorganics; Drying Agents; Analytical Reagents; Special Applications; Essential Chemicals; Reagent Plus; Routine Reagents; BiochemicalsSynthetic Reagents; Magnesium; Molecular Biology; Molecular Biology Reagents; Inorganic Salts; Magnesium Salts; MagnesiumMetal and Ceramic Science; Salts; Synthetic Reagents; Complexometric Concentrates (IDRANAL)Titration; Concentrates; Salt Concentrates; Titration; G - M; Salt Solutions; Volumetric Solutions; BioUltraProtein Structural Analysis; DNA & RNA Purification; etc., and the other registry number is 139939-75-6. Besides, it is white crystalline powder, which should be stored in sealed, cool and dry place. In addition, its molecular formula is MgSO4 and molecular weight is 120.36.

The other characteristics of this product can be summarized as: (1)EINECS: 231-298-2; (2)ACD/LogP: -1.03; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): -5.53; (5)ACD/LogD (pH 7.4): -5.53; (6)ACD/BCF (pH 5.5): 1; (7)ACD/BCF (pH 7.4): 1; (8)#H bond acceptors: 4; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 0; (11)Polar Surface Area: 82.98 Å2; (12)Density: 2.66 g/cm3; (13)Melting Point: 1124 °C; (14)solubility: H2O: 1 M at 20 °C; (15)Enthalpy of Vaporization: 62.94 kJ/mol; (16)Boiling Point: 330 °C at 760 mmHg; (17)Vapour Pressure: 3.35E-05 mmHg at 25 °C.

Preparation of Magnesium sulphate: this chemical can be prepared by the recrystallization of industrial magnesium sulfate.

Uses of Magnesium sulphate: this chemical is used to correct magnesium deficiency in soil in agriculture and gardening. It can also be used in organic synthesis as a desiccant due to its affinity for water. Additionally, it is used in bath salts. And it is also absorbed into the skin, reducing inflammation. It is commonly used as a saline laxative. Furthermore, it can be used to treat eclampsia in pregnant women. It can be used as the electrolyte to prepare copper sulfate:
Cu + MgSO4 + 2 H2O → H2 + CuSO4 + Mg(OH)2

When you are using this chemical, please be cautious about it as the following: it is irritating to eyes, respiratory system and skin. Please do not breathe dust. And in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Moreover, you should wear suitable protective clothing to avoid contact with skin and eyes.

People can use the following data to convert to the molecule structure.
(1)Canonical SMILES: [O-]S(=O)(=O)[O-].[Mg+2]
(2)InChI: InChI=1S/Mg.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
(3)InChIKey: CSNNHWWHGAXBCP-UHFFFAOYSA-L

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LDLo subcutaneous 1gm/kg (1000mg/kg) BEHAVIORAL: GENERAL ANESTHETIC American Journal of Physiology. Vol. 14, Pg. 366, 1905.
dog LDLo intraperitoneal 1200mg/kg (1200mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1364, 1935.
dog LDLo subcutaneous 1500mg/kg (1500mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1364, 1935.
guinea pig LDLo subcutaneous 1800mg/kg (1800mg/kg) BEHAVIORAL: GENERAL ANESTHETIC

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
American Journal of Physiology. Vol. 14, Pg. 366, 1905.
man TDLo oral 428mg/kg (428mg/kg) BEHAVIORAL: MUSCLE WEAKNESS

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Japanese Journal of Toxicology. Vol. 2, Pg. 285, 1989.
mouse LD50 intraperitoneal 1029mg/kg (1029mg/kg)   Farmakologiya i Toksikologiya Vol. 10, Pg. 107, 1975.
mouse LD50 subcutaneous 645mg/kg (645mg/kg)   Zhongguo Yaoli Xuebao. Acta Pharmacologica Sinica. Chinese Journal of Pharmacology. Vol. 7, Pg. 178, 1986.
mouse LDLo intravenous 48mg/kg (48mg/kg)   Toxicology and Applied Pharmacology. Vol. 4, Pg. 492, 1962.
mouse LDLo oral 5gm/kg (5000mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1364, 1935.
rabbit LDLo oral 3gm/kg (3000mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1364, 1935.
rabbit LDLo subcutaneous 1750mg/kg (1750mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
American Journal of Physiology. Vol. 14, Pg. 366, 1905.
rat LD50 subcutaneous 1200mg/kg (1200mg/kg)   Neuroscience Letters. Vol. 117, Pg. 207, 1990.
women LDLo intravenous 80mg/kg/2M-I (80mg/kg) CARDIAC: OTHER CHANGES

LUNGS, THORAX, OR RESPIRATION: CYANOSIS
South African Medical Journal. Vol. 67, Pg. 145, 1985.
women TDLo intraspinal 20mg/kg (20mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITH APPROPRIATE ANESTHESIA South African Medical Journal. Vol. 68, Pg. 367, 1985.
women TDLo oral 351mg/kg (351mg/kg) BEHAVIORAL: MUSCLE WEAKNESS

CARDIAC: ARRHYTHMIAS (INCLUDING CHANGES IN CONDUCTION)

BLOOD: "CHANGES IN SERUM COMPOSITION (E.G., TP, BILIRUBIN, CHOLESTEROL)"
Journal of Toxicology, Clinical Toxicology. Vol. 34, Pg. 735, 1996.

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