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ChemicalBook
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Magnesium sulfate

Magnesium sulfate
Magnesium sulfate
CAS No.
7487-88-9
Chemical Name:
Magnesium sulfate
Synonyms
DBO2;MgSO4;Salts;Dried;Nsc146179;Hair salt;Sal amarum;salangalis;TBS TABLETS;Wln: mg S-o4
CBNumber:
CB9122608
Molecular Formula:
MgO4S
Formula Weight:
120.37
MOL File:
7487-88-9.mol

Magnesium sulfate Properties

Melting point:
1124 °C
Density 
1.07 g/mL at 20 °C
vapor density 
<0.01 (vs air)
vapor pressure 
<0.1 mm Hg ( 20 °C)
storage temp. 
Store at room temperature.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
powder (very fine)
color 
slightly gray
Specific Gravity
2.66
PH
7.9 (50g/l, H2O, 25℃)
Water Solubility 
Soluble in water. Slightly soluble in alcohol, glycerol. Insoluble in acetone.
λmax
λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.02
Sensitive 
Hygroscopic
Merck 
14,5691
Stability:
Stable. Hygroscopic.
CAS DataBase Reference
7487-88-9(CAS DataBase Reference)
NIST Chemistry Reference
Magnesium sulfate(7487-88-9)
EPA Substance Registry System
Sulfuric acid magnesium salt (1:1)(7487-88-9)

SAFETY

Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  22-24/25-36-26
WGK Germany  1
RTECS  OM4500000
3
TSCA  Yes
HS Code  28332100
Hazardous Substances Data 7487-88-9(Hazardous Substances Data)

Magnesium sulfate price More Price(44)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 203726 Magnesium sulfate ≥99.99% trace metals basis 7487-88-9 25g $207 2018-11-13 Buy
Sigma-Aldrich 203726 Magnesium sulfate ≥99.99% trace metals basis 7487-88-9 125g $829 2018-11-13 Buy
TCI Chemical M1890 Magnesium Sulfate Anhydrous >98.0%(T) 7487-88-9 300g $19 2018-11-22 Buy
Alfa Aesar 033337 Magnesium sulfate, anhydrous, 99.5% min 7487-88-9 2kg $99.9 2018-11-16 Buy
Alfa Aesar 033337 Magnesium sulfate, anhydrous, 99.5% min 7487-88-9 10kg $423 2018-11-16 Buy

Magnesium sulfate Chemical Properties,Uses,Production

Description

Magnesium sulfate is an inorganic salt (chemical compound) containing magnesium, sulfur and oxygen, with the formula MgSO4. It is strongly hygroscopic and often encountered as the heptahydrate sulfate mineral epsomite (MgSO4•7H2O), commonly called Epsom salt. And the monohydrate, MgSO4•H2O, is found as the mineral kieserite. In gardening and other agriculture, magnesium sulfate is used to correct a magnesium or sulfur deficiency in soil. In food preparation, magnesium sulfate is used as a brewing salt in beer production or used as a coagulant for making tofu. In chemistry, anhydrous magnesium sulfate is commonly used as a desiccant in organic synthesis due to its affinity for water. For Marine use, magnesium sulfate heptahydrate is used to maintain the magnesium concentration in marine aquaria which contain large amounts of stony corals. For medicine use, it is used in pregnant women to control seizures due to certain complications of pregnancy (eg, severe toxemia) and to control high blood pressure, severe brain function problems (encephalopathy), and seizures in children who have sudden, severe inflammation of the kidneys (acute nephritis). Besides, magnesium sulfate is also used as a laxative to relieve occasional constipation.

Chemical Properties

Magnesium sulfate (MgS04) is a colorless crystal with a bitter, saline taste. It is soluble in glycerol and used in fireproofing, textile processes, ceramics, cosmetics, and fertilizers.

Uses

Used for immediate control of life-threatening convulsions in the treatment of severe toxemias (pre-eclampsia and eclampsia) of pregnancy and in the treatment of acute nephritis in children. Also indicated for replacement therapy in magnesium deficiency,

Uses

magnesium sulfate is an inorganic salt used as a bulking agent in cosmetic preparations.

Uses

Magnesium sulfate, a mild central nervous system (CNS) depressant and vasodilator, is used for eclamptic seizures. An initial intravenous loading dose is 2 to 4 g administered over 15 minutes, followed by a continuous infusion of 1 to 3 g/hour. The therapeutic serum level is 4 to 8 mEq/L.

Uses

Magnesium sulfate has been used for decades as a tocolytic; however recently it has been noted that given its lack of benefit, possible harms, and expense, magnesium sulfate should not be used for tocolysis.

Uses

Magnesium sulfate is used widely in several industries including fertilizer, cement, textile, chemicals, and medicine. In the cement industry, it is used in manufacturing oxysulfate cement. In medicine, it is an analgesic and cathartic. An important application of anhydrous magnesium sulfate in the laboratory involves drying organic solvents required for syntheses and GC analysis.
In the textile industry, magnesium sulfate is used in finishing composition for dressing cotton; for weighting and sizing silk; as a mordant for fixing basic dyestuffs on wool; and in fireproofing fabrics. It also is a component of certain types of electrolytic plating baths; of various photographic solutions; of cosmetic lotions. It is a catalyst carrier; a dietary supplement in cattle feed; a coagulant for rubber and plastic; and is used in making citric acid and several magnesium salts, such as magnesium stearate.

Preparation

Hydrated magnesium sulfate occurs in nature as the minerals kieserite and epsomite. The salt is mined in large scale from these and other naturally occurring minerals. The salt also is prepared in the laboratory by the action of sulfuric acid on magnesium oxide, hydroxide, or carbonate followed by evaporation and crystallization:
MgO + H2SO4 → MgSO4 + H2O
Mg(OH)2 + H2SO4 → MgSO4 + 2H2O
MgCO3 + H2SO4 → MgSO4 + CO2 + H2O
Crystallization at temperatures between 1.8 and 48°C yields heptahydrate, MgSO4•7H2O. Below 1.8°C, a dodecahydrate , MgSO4•12H2O crystallizes out. Above 48°C crystals of lower hydrates form. The anhydrous salt is obtained by heating the heptahydrate at about 500°C in a rotary drum; or dehydrating above 150°C in the presence of sulfuric acid.

Application

Magnesium sulfate is utilized in the potassium chemicals industry for the manufacture of potassium sulfate (from potassium chloride), sodium sulfate and potash magnesia (potassium magnesium sulfate). Magnesium sulfate, particularly as kieserite, is used as a fertilizer (ca. 80% of total consumption). It is also used in the textile industry, in the manufacture of building and refractory materials, in the pulp industry and in the production of animal feedstuffs and motor oil additives.

Production Methods

Magnesium sulfate is widely distributed in nature, e.g. in salt deposits as kieserite, as Epsom salt MgSO4 . 7H20, in the form of double salts such as kainite 4KCl . 4MgSO4 . 11H20 and langbeinite K2SO4 . 2MgSO4, and in brines. Large quantities of kieserite, Epsom salt and anhydrous magnesium sulfate are produced in the processing of potassium salts. Magnesium sulfate is also produced by reacting magnesium carbonate or seawatermagnesium hydroxide with sulfuric acid.

Definition

ChEBI: A magnesium salt having sulfate as the counterion.

Agricultural Uses

Magnesium sulphate is a white compound existing both in anhydrous (rhombic) and hydrated crystalline forms. The monohydrate MgSO4·H2O (monoclinic) occurs in nature as kieserite. It is a greyish-white crystalline powder which contains about 16 % magnesium and is used as a fertilizer. It is regarded as a concentrated form of epsom salt, having less water of crystallization. The commonest hydrate is heptahydrate MgSO4·7H2O(also called rhombic or epsom salt) which occurs naturally as the mineral epsomite. It is a white powder with a bitter, saline taste. The salt in the monocliic form loses its structural water at 150°C, while the rhombic form loses water at 200°C.
Magnesium sulphate is used in sizing and freproofng cotton and silk, in tanning leather, in the manufacture of fertilizers, in explosives and matches, in medicines as a laxative, and as a veterinary medicine for the treatment of inflammations and infected wounds.

Side effects

The side effects of magnesium sulfate administration are dose dependent. As magnesium levels increase, skeletal muscle weakness increases and CNS depression and vascular dilation occur. Magnesium sulfate infusion commonly results in a slight decrease in blood pressure during epidural anesthesia.
Cardiac muscle is not affected to a clinically evident degree when magnesium is administered at therapeutic levels, although magnesium can have profound myocardial effects during a gross overdose.
Magnesium antagonizes the vasoconstrictive effect of α-agonists, so ephedrine and phenylephrine are likely to less effectively increase maternal blood pressure when administered concomitantly with magnesium.
Magnesium is eliminated unchanged by the kidneys. In a patient who is receiving a maintenance infusion of magnesium and who has decreasing urine output, blood levels of magnesium quickly increase, as do related side effects.
Other side effects of magnesium sulfate include the following: (1) Cutaneous vasodilation with flushing (2) Headache and dizziness (3) Nausea (4) Skeletal muscle weakness (5) Depression of deep tendon reflexes (6) Respiratory depression (7) ECG changes

Safety Profile

A poison by intravenous route. Moderately toxic by ingestion, intraperitoneal, and subcutaneous routes. Human systemic effects: heart changes, cyanosis, flaccid paralysis with appropriate anesthesia. An experimental teratogen. Mutation data reported. Potentially explosive reaction when heated with ethoxyethynyl alcohols (e.g., l-ethoxy 3-methyl-1-butyn-3-01). When heated to decomposition it emits toxic fumes of SOx. See also SULFATES.

Purification Methods

Crystallise it from warm H2O (1g/mL) by cooling. Dry the heptahydrate (Epsom salt) at ~250o until it loses 25% of its weight. Its solubility in H2O is 36% at 20o, 55% at 60o and 74% at 100o; above 110o the solubility decreases with rise of temperature. Store it in a sealed container.

Precautions

Magnesium sulfate is not for use in patients with heart block or extensive myocardial damage. Use it with caution in patients with impaired renal function, in digitalized patients, and with concomitant use of other central nervous system depressants or neuromuscular blocking agents. Intravenous administration is contraindicated during the 2 hours preceding delivery. Oral administration is contraindicated in patients with abdominal pain, nausea, vomiting, fecal impaction, or intestinal irritation, obstruction, or perforation.

References

1. https://en.wikipedia.org/wiki/Magnesium_sulfate
2. https://www.drugs.com/cdi/magnesium-sulfate.html
3. https://pubchem.ncbi.nlm.nih.gov/compound/magnesium_sulfate
4. http://www.emedicinehealth.com/drug-magnesium_sulfate/article_em.htm

Magnesium sulfate Preparation Products And Raw materials

Raw materials

Preparation Products


Magnesium sulfate Suppliers

Global( 315)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 [email protected] CHINA 100 60
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 [email protected] China 19953 60
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 [email protected] CHINA 3217 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
[email protected] CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 [email protected] CHINA 20786 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 [email protected] CHINA 32651 55
Hubei Jusheng Technology Co.,Ltd.
86-155-27864001
[email protected] CHINA 18004 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 [email protected] CHINA 4529 58
career henan chemical co
+86-371-86658258
[email protected] CHINA 19990 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
[email protected] CHINA 3624 58

View Lastest Price from Magnesium sulfate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-17 Magnesium sulfate
7487-88-9
US $7.00 / kg 1kg 99% 100kg career henan chemical co
2017-08-31 Magnesium Sulfate
7487-88-9
US $10.00 / KG 25KG 99.5% 200tons Jiangsu Kolod Food Ingredients Co.,Ltd.

Magnesium sulfate Spectrum


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