LAURYL MERCAPTAN

LAURYL MERCAPTAN = 1-DODECANETHIOL = DODECYL MERCAPTAN

CAS Number: 112-55-0
EC Number: 203-984-1
MDL number: MFCD00004885
Linear Formula: CH3(CH2)11SH / C12H26S

Lauryl Mercaptan is a chemical compound from the group of thiols. 
Lauryl Mercaptan is a colourless liquid with a characteristic odor, which is practically insoluble in water.
Lauryl mercaptan is an oily colorless liquid with a mild skunk odor. 

Lauryl Mercaptan is freezing point 19°F. 
Lauryl Mercaptan is colorless, water-white, or pale-yellow, oily liquid with a mild, skunk-like odor.
Keep the container tightly closed in a dry and well-ventilated place. 

Lauryl Mercaptan is colorless or light yellow liquid.
Lauryl Mercaptan is soluble in methanol, ether, acetone, benzene, ethyl acetate, insoluble in water. 
Lauryl Mercaptan is an alkyl thiol that forms a self-assembled monolayer (SAM) and can be used as an organic source of sulfur with balanced physio-chemical properties.

Immiscible with water.
Lauryl Mercaptan (C12H26S, CAS registry No. 112-55-0) is also called n-dodecyl mercaptan, which is a clear liquid. 
Lauryl Mercaptan's melting point is -7 °C, and flash point is 87 °C. 

Lauryl Mercaptan is stable under normal temperatures and pressures. 
Store in a cool and dry place, and keep container closed when not in use. 
Pale-yellow or water-white liquid with mild odor; insoluble in water, soluble in organic solvents.

Lauryl Mercaptan is a hydrophobic molecule that provides particles with solubility in organic solvents and compatibility with non-polar polymer composite materials as well as promoting dispersion in low surface-energy solvents for coating applications requiring uniform particle deposition. 

The thiol group provides a very strong bond to the gold particle surface, leaving the hydrophobic alkyl chain exposed to solution. 
Lauryl Mercaptan gives steric stability by providing a physical barrier that prevents particle aggregation in the dried state and allows particles to be dried and re-suspended in organic solvents without particle agglomeration. 

USES and APPLICATIONS of LAURYL MERCAPTAN: 
-Lubricants and Metalworking fluid Additives
-Lauryl Mercaptan is mainly used in production of rubber, plastic and drugs industry.
-Lubricant Additive

-Pharmaceutical Additives
-Antioxidant Intermediates
-Polymer Modifiers
-Manufacture of organic products and insecticides

-Incorporation of particles in non-polar solvents and materials
-Biodiagnostic and nanomedicine applications
-Photothermal applications:
-In-vitro and in-vivo toxicology experiments

-Automotive & Transportation
-Strong oxidizers & acids
-Strong bases
-Reducing agents

-Alkali metals
-Water
-Steam.
-Additives

-Antioxidants
-Lubricants
-Polymers
-In manufacture of synthetic rubber

-Plastics
-Pharmaceuticals
-Insecticides
-Fungicides.

-Lauryl Mercaptan is used as synthetic rubber, synthetic fiber,Synthetic resin polymerization regulator.
-Lauryl Mercaptan is used in the production of polyvinyl chloride stabilizers, drugs, insecticides,  fungicides, detergents, etc.
-Lauryl Mercaptan is used as a relative molecular mass regulator of polymer compounds;

-Lauryl Mercaptan is used in rubber, plastics and pharmaceuticals industry.
-Lubricant Additives: 
a variety of chemicals used in lubricant intermediates to produce additives as well as final components to improve lubricant performance in base oils and metal working fluids.

-Polymers and Rubber Applications:
Normal Lauryl Mercaptan (n-dodecyl mercaptan, 1-dodecanethiol, lauryl mercaptan, NDDM, CAS # 112-55-0) is used as reactants in the synthesis of antioxidants, which minimize undesirable effects from processes such as the stabilization of tin.

-Lauryl Mercaptan is used in the preparation of hydrophobic or mixed self-assembled monolayers. 
-Lauryl Mercaptan is also employed as a chain transfer agent for radical polymerization. 
-Further, Lauryl Mercaptan is utilized as a polymerization inhibitor in polyurethane and neoprene adhesives, which finds application in the footwear industry. 

-In addition to this, Lauryl Mercaptan acts as a protein regenerating agent used for the regeneration of native proteins from mercuric benzoate.
-Lauryl Mercaptan is used in lubricant intermediate to produce additives and final components. 
-At the same time is Lauryl Mercaptan also used for polymers and rubber applications.

-Lauryl Mercaptan is used in lubricant intermediates to produce additives as well as final components to improve lubricant performance in base oils and metal working fluids. 
-Moreover Lauryl Mercaptan ( 1-dodecanethiol, lauryl mercaptan, NDDM) is used as reactants in the synthesis of antioxidants, which minimize undesirable effects from processes such as the stabilization of tin.

-Lauryl Mercaptan is used as a relative molecular mass regulator in the polymerization of synthetic rubber, synthetic fiber and synthetic resin.
-Lauryl Mercaptan is also used as a stabilizer for polyvinyl chloride, a raw material for a bactericide, a detergent and the like.

-What are some products that may contain dodecyl mercaptan?
*Carpet
*Paper Products
*Rubber Products
*Styrene

-Lauryl Mercaptan is found in the manufacturing process of styrene/butadiene latex for use in carpet and paper industries.
-Polymerization inhibitor added to polyurethane resins and Neoprene glues for use, e.g., in the shoe industry.
-Lauryl Mercaptan is used in the production of drugs, insecticides, detergents, and synthetic rubber and as a flotation agent for metal refining.

-Lauryl Mercaptan can be used to treat liver cirrhosis.
-Lauryl Mercaptan is used in polymerization of neoprene. 
-Lauryl Mercaptan is used for the production of hydrophobic SAMs. 

-Lauryl Mercaptan can also be used in mixed SAMs to give a hydrophobic background and act as a spacer to move other functional groups or domains farther apart
-Lauryl Mercaptan is found in the manufacturing process of styrene/butadiene latex for use in carpet and paper industries. 
-Lauryl Mercaptan is used to manufacture plastics, pharmaceuticals, insecticides, fungicides, and elastomers.

-Lauryl Mercaptan is used in protein regeneration and self-assembled monolayers (SAMs)
-Also, a useful protein regenerating agent for regenerating native proteins from mercuribenzoate.
-Lauryl Mercaptan, 98% Cas 112-55-0 - used for the preparation of hydrophobic or mixed self-assembled monolayers.

-Lauryl Mercaptan is used for the preparation of hydrophobic or mixed self-assembling monolayers . 
-Furthermore, Lauryl Mercaptan serves as a polymerization inhibitor in polyurethane and neoprene adhesives (e.g. in the shoe industry) and as a very effective.
-Lauryl Mercaptan İS widely used chain transfer agent for radical polymerizations. 

-Lauryl Mercaptan is found in the manufacturing process of styrene/butadiene latex for use in carpet and paper industries.
-Lauryl Mercaptan can be used as a source of sulfur for the synthesis CdS quantum dots (QDs) and lead sulfide nanoparticles (PbS) which find potential applications in energy efficient lighting, solar cells and as ammonium gas sensing agents.

-Lauryl Mercaptan may be used to form a self-assembled monolayer (SAM) on copper surface as a corrosion resistant coating. 
-Functionalization with Lauryl Mercaptan may form SAMs on geranium (Ge) to improve the surface characteristics for futuristic applications in microelectronics.
-Lauryl Mercaptan is used for the production of hydrophobic SAMs. 

-Lauryl Mercaptan can also be used in mixed SAMs to give a hydrophobic background and act as a spacer to move other functional groups or domains farther apart.
-Lauryl Mercaptan can be used as a chain transfer agent in the polymerization of methyl methacrylate. 
For example, the effect of Lauryl Mercaptan as a chain transfer agent on the molecular weight of poly(methyl methacrylate) has been studied. 

-Lauryl Mercaptan, an organic molecular sulfur, has been utilized as the sulfur source for cadmium sulfide (CdS) “magic-sized” quantum dots (MSQDs) production.
For example, CdS quantum dot (QD) nanoparticles have been synthesized using a cadmium salt and Lauryl Mercaptan, organic sulfur, as the cadmium and sulfur sources, respectively, along with a long-chain organic acid (myristic acid, lauric acid, or stearic acid). 

-Lauryl Mercaptan can be used for the synthesis of thiol-stabilized metal nanoparticles (NPs), such as gold nanoparticles and silver nanoparticles, which have been produced for use as catalysts, electronic devices, fillers, sensors and active components in composite materials, and other applications. 
As an example, silver nanoparticles, which were produced by the borohydride reduction of silver nitrate, were stabilized by means of Lauryl Mercaptan providing sulfur atom in two phase system involving water and organic solvent (such as toluene, chloroform and hexane). 

-Lauryl Mercaptan-capped silver nanoparticles were found to serve as effective catalysts to activate the reduction of 4-nitrophenol (4NP) in the presence of NaBH4, where the size of silver nanoparticles played the determining role in catalytic activity.
-Lauryl Mercaptan can also be used for development of the Lauryl Mercaptan-based phase transfer protocol for the highly efficient extraction of noble metal ions from aqueous phase. 

ADVANTAGES of LAURYL MERCAPTAN:
-Disperses in organic solvents
-Can be dried (solvent evaporated at ambient pressure or vacuum assisted) and re-dispersed in organic solvents without agglomeration.

PREPARATION METHOD of LAURYL MERCAPTAN:
The bromododecane, thiourea and 95% ethanol were heated to reflux for reaction, and then sodium hydroxide solution was added and heated. 
After completion of the reaction, cooling and static stratification, the oil layer is the crude thiol. 
The crude product is washed with water, dried, distilled and distilled under reduced pressure, which is the finished product.

PHYSICAL and CHEMICAL PROPERTIES of LAURYL MERCAPTAN:
Molecular weight : 202,39 g/mol
Appearance Form: liquid
Color: colorless
Odor: characteristic
Odor Threshold: No data available
pH: No data available

Melting point/freezing point:
Melting point/range: -9 - -7 °C at 1.013 hPa
Initial boiling point and boiling range: 266 - 283 °C at 1.013 hPa
Flash point: 128 °C - closed cup - Regulation (EC) No. 440/2008, Annex, A.9
Evaporation rate: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available

Vapor pressure: < 1 hPa at 25 °C
Vapor density: 7,0
Density: 0,845 g/cm3 at 20 °C
Relative density No data available
Water solubility: 0,00001 g/l at 20 °C - OECD Test Guideline 105- partly soluble
Partition coefficient: n-octanol/water
log Pow: > 6,5 at 25 °C - Potential bioaccumulation
Autoignition temperature: No data available

Decomposition temperature: 350 °C -
Viscosity 
Viscosity, kinematic: No data available
Viscosity, dynamic: 3,24 mPa.s at 20 °C
Explosive properties: No data available
Oxidizing properties: none
Other safety information:
Relative vapor density: 7,0

Appearance: colorless to yellow clear liquid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity: 0.84200 to 0.85200 @ 20.00 °C.
Pounds per Gallon - (est).: 7.014 to 7.098
Refractive Index: 1.45400 to 1.46400 @ 20.00 °C.
Melting Point: -8.00 to -7.00 °C. @ 760.00 mm Hg
Boiling Point: 273.00 to 274.00 °C. @ 760.00 mm Hg
Boiling Point: 142.00 to 143.00 °C. @ 16.00 mm Hg

Vapor Pressure: 0.009000 mmHg @ 25.00 °C.
Vapor Density: 6.9 ( Air = 1 )
Flash Point: 248.00 °F. TCC ( 120.00 °C. )
logP (o/w): 6.537 (est)
Soluble in:
alcohol
water, 0.2251 mg/L @ 25 °C (est)
Insoluble in:
water

Min. Purity Spec: 98%
Physical Form (at 20°C): Liquid
Melting Point: -7°C(lit.)
Boiling Point: 266-283°C
Flash Point: 128°C(lit.)
Density: 0.845
Refractive Index: 4.459
Long-Term Storage: Store long-term in a cool, dry place

FIRST AID MEASURES of LAURYL MERCAPTAN:
-Description of first-aid measures:
*General advice:
First aiders need to protect themselves. 
Show this material safety data sheet to the doctor in attendance.

*If inhaled:
After inhalation: 
Fresh air. 
Call in physician.

*In case of skin contact: 
Take off immediately all contaminated clothing. 
Rinse skin with water/ shower. 
Call a physician.

*In case of eye contact:
After eye contact: 
Rinse out with plenty of water. 
Immediately call in ophthalmologist.
Remove contact lenses.

*If swallowed:
After swallowing: 
Call a physician immediately. 

-Indication of any immediate medical attention and special treatment needed:
No data available

ACCIDENTAL RELEASE MEASURES of LAURYL MERCAPTAN:
-Environmental precautions:
Do not let product enter drains.

-Methods and materials for containment and cleaning up:
Cover drains. 
Collect, bind, and pump off spills.  
Take up with liquid-absorbent material.
Dispose of properly. 
Clean up affected area.

FIRE FIGHTING MEASURES of LAURYL MERCAPTAN:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2) 
Foam 
Dry powder

*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.

-Further information:
Suppress (knock down) gases/vapors/mists with a water spray jet. 

EXPOSURE CONTROLS/PERSONAL PROTECTION of LAURYL MERCAPTAN:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
-Personal protective equipment:

*Eye/face protection:
Use Tightly fitting safety goggles.

Full contact:
Material: butyl-rubber
Minimum layer thickness: 0,7 mm
Break through time: 480 min

Splash contact:
Material: Nitrile rubber
Minimum layer thickness: 0,4 mm
Break through time: 30 min

*Body Protection:
Protective clothing.

-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of LAURYL MERCAPTAN:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.

STABILITY and REACTIVITY of LAURYL MERCAPTAN:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).

-Possibility of hazardous reactions:
No data available

SYNONYMS:
1-Dodecanethiol
Lauryl mercaptan
Dodecyl mercaptan    
Dodecyl mercaptan
1-Dodecyl mercaptan
n-Dodecyl mercaptan
Lauryl mercaptan
n-Lauryl mercaptan
1-Mercaptododecane
Lauryl mercaptan
n-Dodecyl mercaptan
Lauryl mercaptan
Mercaptan C12
NDM
Dodecyl mercaptan
n-Dodecyl mercaptan
1-DODECANETHIOL
Dodecane-1-thiol
Dodecyl mercaptan
Dodecanethiol
n-Dodecanethiol
Lauryl mercaptan
n-Dodecyl mercaptan
N-Dodecylmercaptan
1-Mercaptododecane
n-Lauryl mercaptan
1-Dodecyl mercaptan
Dodecylmercaptan
Pennfloat M
Pennfloat S
n-Dodecylthiol
1-dodecylthiol
Dodecylthiol
NSC 814
NCI-C60935
UNII-S8ZJB6X253
S8ZJB6X253
MFCD00004885
DSSTox_CID_5220
Lauryl mercaptide
DSSTox_RID_77706
DSSTox_GSID_25220
M-Lauryl mercaptan
M-Dodecyl mercaptan
Tris(dodecylthio)antimony
Stibine, tris(dodecylthio)-
Dodecyl mercaptan (VAN)
CCRIS 743
1-Dodecanethiol, antimony(3+) salt
HSDB 1074
BRN 0969337
dodecanthiol
laurylmercaptan
Thioantimonic acid (H3SbS3), tridodecyl ester
dodecane thiol
1-dodecanthiol
AI3-07577
dodecyl-mercaptan
1-dodecane thiol
1-dodecylmercaptan
n-dodecyl-mercaptan
Dodecanethiol-(1)
normal dodecylmercaptan
normal dodecyl mercaptan
1-Dodecanethiol, >=98%
SCHEMBL15369
NSC814
CHEMBL3185403
DTXSID6025220
NSC-814
NSC11884
Tox21_201758
Tox21_303101
NSC-11884
NSC229570
STL483072
ZINC59144932
WLN: 12S-SB-S12&S12
AKOS015960383
MCULE-8388213802
NSC-229570
NCGC00249113-01
NCGC00257179-01
NCGC00259307-01
BP-10739
LS-14165
1-Dodecanethiol, purum, >=97.0% (GC)
DB-021314
D0970
FT-0607709
FT-0693266
FT-0694976
Q161619
J-504580
n-Dodecyl mercaptan
Dodecyl mercaptan
Lauryl mercaptan
30237-11-7
1-Dodecyl mercaptan
Dodecyl mercaptan
n-Dodecyl mercaptan
Lauryl mercaptan
n-Lauryl mercaptan
1-Mercaptododecane
1-Dodecyl mercaptan
1-Mercaptododecane
Dodecane-1-thiol
Dodecanethiol-(1)
Dodecyl mercaptan
Dodecylthiol
Lauryl mercaptan
Lauryl mercaptide
M-dodecyl mercaptan
M-lauryl mercaptan
n-Dodecanethiol
n-Dodecyl mercaptan
n-Dodecylthiol
n-Lauryl mercaptan
Pennfloat M
Pennfloat S
AI3-07577
BRN 0969337
CCRIS 743
EINECS 203-984-1
HSDB 1074
NCI-C60935
NSC 814