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DESCRIPTION:
Sodium Allyl Sulfonate is used as a brightener for nickel electroplating, as a dyesite monomer in acrylic fiber, a performance monomer in synthetic polymer applications, and a chemical intermediate.
CAS Number: 22767-50-6
SYNONYMS
SAS;ALS;SodiuM prop-2-ene-1-sulfonate;IPOA;SODIUM 2-PROPENE-1-SULFONATE;ALS1;Homodimer;Sodium aL;ALS liquid;sodiumallysulfonate,
Sodium Allyl Sulfonate (SAS) is used as a brightener for nickel electroplating, as a dyesite monomer in acrylic fiber, a performance monomer in synthetic polymer applications, and a chemical intermediate.
Sodium allyl sulfonate is an organic chemical compound also known as sodium sulfonic acid salt.
Sodium Allyl Sulfonate (SAS) is used in nickel plating as a reducing agent and as an additive in the paint industry to produce acrylic thermostatic resins.
SYNTHESIS AND PRODUCTION OF SODIUM ALLYL SULFONATE:
In short, we need allyl chloride and sodium sulfite to produce the chemical sodium allyl sulfonate.
During the reaction, the reaction temperature is kept around 40-50 ° C.
After the reaction, processes such as hydrolysis are performed and the desired product can be obtained.
SODIUM ALLYL SULFONATE USES:
As mentioned, this organic compound has many applications in various industries, which are described below:
Pharmaceutical:
This salt is also used in the pharmaceutical industry and the production of some most commonly used drugs.
Textile:
This chemical is specifically and accurately used to process acrylic fibers, this organic compound has a very positive and beneficial effect on the dyeing properties of this type of fiber, increases the flexibility of the fibers, and generally increases the quality of the fibers.
Polymerization Processes:
Sodium allyl sulfonate is used in the polymerization processes of acrylamide, acrylic acid, acrylamide, and maleic anhydride.
Sodium Allyl Sulfonate (SAS) is also used in the emulsion polymerization of styrene and polyvinyl alcohol.
Plating Processes:
In metal plating processes, an aqueous solution of this organic compound is used to create transparency. like Sodium saccharin
Paint:
To produce water-soluble paints, this white powder is widely used with the aim of better dispersion of paints in water and production of some thermoset resins.
Sodium allylsulfonate (SAS) is a white powder with the formula C3H5NaO3S.
The electroplated nickel intermediate sodium allylsulfonate (35% aqueous solution) is directly synthesized with allyl chloride and sodium sulfite in the aqueous phase.
Sodium allysulfonate is used as a basic brightener in nickel electroplating baths. it is also used as pharmaceutical intermediates.
Sodium allylsulfonate is a chemical which is used as nickel plating bathadditive.
Chemical Properties
White to Almost white powder to crystal.
Sodium Allylsulfonate is used as a brightener for nickel electroplating as well as in the dyeing of acryilic fibers.
Sodium allylsulfonate ( ALS 25% ) used as one of the primary component in Nickel brightener formulations.
Sodium allylsulfonate ( ALS 25% ) is a co-monomer of the polymers especially for functional acrylic fibers(dying betterment and heat resistance).
It is used in chain transfer agent.
Sodium allylsulfonate 35% is used as a brightener for nickel electroplating, the general dosage is 0.1～0.2g/L.
It can also used as a dyesite monomer in acrylic fiber, and as a performance monomer in synthetic polymer applications.
Sodium allylsulfonate can be used as various reactive emulsifiers, flocculants, water reducers for commercial concrete, and so on.
PREPARATION
At 50 °C, sodium metabisulfite dissolved in deionized water and stirred until sodium metabisulfite is completely dissolved.
Add triethylbenzyl chloride to the sodium metabisulfite solution ammonium and polymerization inhibitor p-tert-butyl catechol.
After stirring and mixing uniformly, a sodium metabisulfite mixture is obtained.
The sodium metabisulfite mixture is passed through three high-precision plungers, sodium hydroxide solution, and allyl chloride.
The metering pump is simultaneously pumped into the microchannel reactor for reaction.
Adjust the reaction temperature in the microchannel reactor to 40 ° C and adjust the back pressure valve to make the pressure of the microchannel reactor 0.3 MP.
The crude product is filtered through a fine filter, and sodium allylsulfonate is collected.
PROPERTIES
Sodium allyl sulfonate with the chemical formula C3H5SO3Na is a clear, colorless, or white shell in standard conditions that is easily soluble in water and is a relatively stable compound chemically;
The most important physical and chemical properties of sodium allyl sulfonate can be summarized in the table below:
Name SAS
Chemical formula
C3H5SO3Na
Molecular weight (g/mol) 144.13
Appearance
Dry powder
Density(g/cm3) 1.206
Melting point (°C) 242
Solubility in water (g/100ml) 4
Melting point 242 °C (decomp)
Density 1.206
vapor pressure 0Pa at 25℃
storage temp. Inert atmosphere,Room Temperature
solubility soluble in Alcohol, Dimethylformamide
form Powder
color White
Specific Gravity 1.25
Water Solubility 4 g/100 mL
Hydrolytic Sensitivity 0: forms stable aqueous solutions
Stability Stable. Incompatible with strong oxidizing agents.
InChIKey DIKJULDDNQFCJG-UHFFFAOYSA-M
LogP -3.5 at 20℃
FORMULA: CH2=CHCH2SO3Na CAS NUMBER: 2495-39-8
TYPICAL ANALYSIS: SAS Content Solution
Density pH 34 – 36% 1.25 kg/l or 10.4 lbs/gal 7.00 – 10.00
APPEARANCE: Clear, colorless to light yellow liquid. Color, APHA 100 Maximum
SAFETY INFORMATION ABOUT SODIUM ALLYL SULFONATE (SAS)
First aid measures:
Description of first aid measures:
General advice:
Consult a physician.
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area:
If inhaled:
If breathed in, move person into fresh air.
If not breathing, give artificial respiration.
Consult a physician.
In case of skin contact:
Take off contaminated clothing and shoes immediately.
Wash off with soap and plenty of water.
Consult a physician.
In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.
If swallowed:
Do NOT induce vomiting.
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
Firefighting measures:
Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas
Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures:
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment.
Avoid breathing vapours, mist or gas.
Evacuate personnel to safe areas.
Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste.
Keep in suitable, closed containers for disposal.
Handling and storage:
Precautions for safe handling:
Avoid inhalation of vapour or mist.
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
Exposure controls/personal protection:
Control parameters:
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
Exposure controls:
Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
Personal protective equipment:
Eye/face protection:
Tightly fitting safety goggles.
Faceshield (8-inch minimum).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection:
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.
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
It should not be construed as offering an approval for any specific use scenario.
Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls.
If the respirator is the sole means of protection, use a full-face supplied air respirator.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Stability and reactivity:
Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:
Strong oxidizing agents:
Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions.
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.
Disposal considerations:
Waste treatment methods:
Product:
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contact a licensed professional waste disposal service to dispose of this material.
Contaminated packaging:
Dispose of as unused product.
