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Home> Hot Product Listed M   > Magnesium Stearate

Magnesium Stearate

CAS No.:557-04-0
EINECS(EC#):209-150-3
Molecular Weight:591.25
Molecular Formula:2(C18H35O2)?Mg (Products with the same molecular formula)
MOL File:557-04-0.mol
Names and Identifiers
Synonyms

Dolomol MagnesiumstearatemedicinalMagnesium Stearate petracmg20nf stearatedemagnesiumOctadecanoic acid magnesium salt dibasicmagnesiumstearate MAGNESIUM OCTADECANOATE magnesiumdistearate

Inchi
InChI=1/2C18H36O2.Mg/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
Canonical Smiles
CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Mg+2]
Properties
Appearance
White powder
Density
1.07
Melting Point
130-140℃
Boiling Point
359.4°Cat760mmHg
Refractive Index
1.45 (25 C)
Flash Point
162.4°C
Water
Insoluble
Solubilities
Insoluble in water
Color/Form
LUMPS
Fine, bulky, white powder
Soft, white, light powder
Stability
Stable. Incompatible with strong oxidizing agents.
HS Code
29157030
Storage temp
Store at RT.
Safety and Handling
Hazard Codes
Xi:Irritant
Risk Statements
R36/37/38
Safety Statements
S26;S37/39
Transport
20kgs
Formulations/Preparations
MAGNESIUM STEARATE /IS/ COMPD OF MAGNESIUM WITH MIXTURE OF SOLID ORG ACIDS OBTAINED FROM FATS, & CONSISTS CHIEFLY OF VARIABLE PROPORTIONS OF MAGNESIUM STEARATE & MAGNESIUM PALMITATE. IT CONTAINS EQUIVALENT OF 6.8-8.0% OF MAGNESIUM OXIDE (40.30).
GRADES: TECHNICAL, USP FCC.
A TYPICAL DRY COMPRESSED ANTIPERSPIRANT STICK/CONTAINS/0.25 wt% MAGNESIUM STEARATE
Exposure Standards and Regulations
Substance added directly to human food affirmed as generally recognized as safe (GRAS).
An ingredient whose use in food or food packaging is subject to a prior sanction or approval within the meaning of section 201(s)(4) of the Act is exempt from classification as a food additive. ... Substances classified as stabilizers, when migrating from food-packaging material shall include: magnesium stearate.
Specification

The?IUPAC name of?Magnesium stearate is?magnesium octadecanoate. With the?CAS registry number 557-04-0,?it is also named as Octadecanoic acid, magnesium salt.?The product's category is Cosmetic Ingredients & Chemicals. It is?white powder which is soluble?in hot ethanol solution and?insoluble in water.?In addition,?this chemical has?good skin adhesion and?lubricity. Besides,?it should be sealed in the container and stored in the cool and dry place.

The other characteristics of this product can be summarized as:?(1)ACD/LogP: 8.22; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 7.42; (4)ACD/LogD (pH 7.4): 5.63; (5)#H bond acceptors: 2; (6)#H bond donors: 1; (7)#Freely Rotating Bonds: 16; (8)Flash Point: 162.4 °C; (9)Enthalpy of Vaporization: 63.84 kJ/mol; (10)Boiling Point: 359.4 °C at 760 mmHg; (11)Vapour Pressure: 8.58E-06 mmHg at 25°C; (12)Rotatable Bond Count: 30; (13)Exact Mass: 590.512453; (14)MonoIsotopic Mass: 590.512453; (15)Topological Polar Surface Area: 80.3; (16)Heavy Atom Count: 41; (17)Complexity: 196.

Preparation of Magnesium stearate: It can be obtained by?magnesium sulfate and?sodium stearate which is prepared by?sodium hydroxide and?stearic acid.
C17H35COOH+NaOH→C17H35COONa+H2O
2C17H35COONa+MgSO4→Mg[CH3(CH2)16COO)]2+Na2SO4?

Uses of Magnesium stearate:?It often used as a diluent in the manufacture of medical tablets, capsules and powders. It?is?not only?used to bind sugar in hard candies, but also?used as a heat stabilizer?of PVC,?lubricating agent of?ABS, amino resins, phenolic resins and urea formaldehyde resin. In addition, it is a common ingredient in baby formulas.?Besides, tis chemical can used?in the powder products to enhance adhesion and?lubrication.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin.?In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?If you want to contact this product, you must wear suitable gloves and eye/face protection.

People can use the following data to convert to the molecule structure.?
1. SMILES:[Mg+2].[O-]C(=O)CCCCCCCCCCCCCCCCC.[O-]C(=O)CCCCCCCCCCCCCCCCC
2.?InChI:InChI=1/2C18H36O2.Mg/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2

Report

The?IUPAC name of?Magnesium stearate is?magnesium octadecanoate. With the?CAS registry number 557-04-0,?it is also named as Octadecanoic acid, magnesium salt.?The product's category is Cosmetic Ingredients & Chemicals. It is?white powder which is soluble?in hot ethanol solution and?insoluble in water.?In addition,?this chemical has?good skin adhesion and?lubricity. Besides,?it should be sealed in the container and stored in the cool and dry place.

The other characteristics of this product can be summarized as:?(1)ACD/LogP: 8.22; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 7.42; (4)ACD/LogD (pH 7.4): 5.63; (5)#H bond acceptors: 2; (6)#H bond donors: 1; (7)#Freely Rotating Bonds: 16; (8)Flash Point: 162.4 °C; (9)Enthalpy of Vaporization: 63.84 kJ/mol; (10)Boiling Point: 359.4 °C at 760 mmHg; (11)Vapour Pressure: 8.58E-06 mmHg at 25°C; (12)Rotatable Bond Count: 30; (13)Exact Mass: 590.512453; (14)MonoIsotopic Mass: 590.512453; (15)Topological Polar Surface Area: 80.3; (16)Heavy Atom Count: 41; (17)Complexity: 196.

Preparation of Magnesium stearate: It can be obtained by?magnesium sulfate and?sodium stearate which is prepared by?sodium hydroxide and?stearic acid.
C17H35COOH+NaOH→C17H35COONa+H2O
2C17H35COONa+MgSO4→Mg[CH3(CH2)16COO)]2+Na2SO4?

Uses of Magnesium stearate:?It often used as a diluent in the manufacture of medical tablets, capsules and powders. It?is?not only?used to bind sugar in hard candies, but also?used as a heat stabilizer?of PVC,?lubricating agent of?ABS, amino resins, phenolic resins and urea formaldehyde resin. In addition, it is a common ingredient in baby formulas.?Besides, tis chemical can used?in the powder products to enhance adhesion and?lubrication.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin.?In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?If you want to contact this product, you must wear suitable gloves and eye/face protection.

People can use the following data to convert to the molecule structure.?
1. SMILES:[Mg+2].[O-]C(=O)CCCCCCCCCCCCCCCCC.[O-]C(=O)CCCCCCCCCCCCCCCCC
2.?InChI:InChI=1/2C18H36O2.Mg/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2

Disposal Methods
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Reach Info
Globally, no enterprise has officially registered the substance REACH.
Other official information: ·ECHA Information Page for CAS: 557-04-0 EC: 209-150-3 Magnesium Stearate ·ECHA C&L Inventory for CAS: CAS: 557-04-0 EC: 209-150-3 Magnesium Stearate
MSDS

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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 distearate

1.2 Other means of identification

Product number -
Other names MAGNESIUM DISTEARATE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Surfactants
Uses advised against no data available

1.4 Supplier's details

Company WWW.GuideChem.COM
Address 8F, Block C, No.3 Building, Zijin Plaza, No.701, Gudun Road, Hangzhou, Zhejiang 310030, China
Telephone +86-571-89739798
Fax 86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-571-89739798
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word.

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
magnesium distearate magnesium distearate 557-04-0 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Rinse mouth. Rest.

4.2 Most important symptoms/effects, acute and delayed

no data available

4.3 Indication of immediate medical attention and special treatment needed, if necessary

no data available

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

In case of fire in the surroundings, use appropriate extinguishing media.

5.2 Specific hazards arising from the chemical

no data available

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state White powder
Colour LUMPS
Odour Odorless
Melting point/ freezing point 143\u00b0C(lit.)
Boiling point or initial boiling point and boiling range 53\u00b0C/1mmHg(lit.)
Flammability Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit no data available
Flash point 95\u00b0C(lit.)
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility In water:Insoluble
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure no data available
Density and/or relative density 1.07
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

no data available

10.6 Hazardous decomposition products

When heated to decomposition it emits acrid smoke and toxic fumes.

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

A4; Not classifiable as a human carcinogen. /Stearates; does not include stearates of toxic metals/

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

no data available

12.3 Bioaccumulative potential

no data available

12.4 Mobility in soil

no data available

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN2811 IMDG: UN2811 IATA: UN2811

14.2 UN Proper Shipping Name

ADR/RID: TOXIC SOLID, ORGANIC, N.O.S.
IMDG: TOXIC SOLID, ORGANIC, N.O.S.
IATA: TOXIC SOLID, ORGANIC, N.O.S.

14.3 Transport hazard class(es)

ADR/RID: 6.1 IMDG: 6.1 IATA: 6.1

14.4 Packing group, if applicable

ADR/RID: III IMDG: III IATA: III

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
magnesium distearate magnesium distearate 557-04-0 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Not Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 12, 2017
Revision Date Aug 12, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

Synthesis Route
557-04-0Total: 1 Synthesis Route
Precursor and Product
Computational chemical data

Molecular Weight:591.2436 [g/mol]
Molecular Formula:C36H70MgO4
H-Bond Donor:0
H-Bond Acceptor:4
Rotatable Bond Count:30
Exact Mass:590.512453
MonoIsotopic Mass:590.512453
Topological Polar Surface Area:80.3
Heavy Atom Count:41
Formal Charge:0
Complexity:196
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:3

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