SLS CAS 151-21-3
CAS:151-21-3;Dodecyl sulfate sodium salt; Lauryl sulfate sodium salt; SDS;K12;Sodium lauryl sulfate; Laurylsulfuric acid sodium salt; Dodecylsulfuric acid sodium salt; Sodium dodecyl sulphate
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ORID products are tested extensively in-house and supplied worldwide to the Life Sciences industries.
SLS (K12) – The “Tough Guy” of Grease Removal
What Is SLS?
SLS stands for Sodium Lauryl Sulfate.
In China, people call it “K12.” Same thing, different name.
It’s a white powder or crystal. Sometimes it looks like tiny needles.
Its job? Remove oil and grease. Fast and hard.
Why Do People Love It?
Strong cleaning power.
SLS attacks oil like a hungry wolf.
If you have heavy grease or stubborn dirt, SLS gets the job done.
Cheap.
Compared to other surfactants, it won’t hurt your wallet.
For industrial cleaning, this matters a lot.
Great foam.
It makes big, rich bubbles.
Customers love to see foam. It makes them feel the product is working.
The Downside: It’s a Bit Rough
Here’s the truth.
SLS is strong. Maybe too strong.
It can irritate skin.
Think of it like scrubbing a pan with steel wool.
Yes, it gets clean. But it’s not gentle.
If you’re making products for face or baby skin, be careful.
It can dry things out.
SLS strips oil very well. That includes natural oils on skin.
Result? Dry, tight feeling after washing.
Why Do People Love It?
Strong cleaning power.
SLS attacks oil like a hungry wolf.
If you have heavy grease or stubborn dirt, SLS gets the job done.
Cheap.
Compared to other surfactants, it won’t hurt your wallet.
For industrial cleaning, this matters a lot.
Great foam.
It makes big, rich bubbles.
Customers love to see foam. It makes them feel the product is working.
The Downside: It’s a Bit Rough
Here’s the truth.
SLS is strong. Maybe too strong.
It can irritate skin.
Think of it like scrubbing a pan with steel wool.
Yes, it gets clean. But it’s not gentle.
If you’re making products for face or baby skin, be careful.
It can dry things out.
SLS strips oil very well. That includes natural oils on skin.
Result? Dry, tight feeling after washing.
Where Is SLS Used?
Industrial cleaners.
Factory floors. Engine parts. Heavy machinery.
When gentleness doesn’t matter, SLS shines.
Toothpaste.
Surprised? Yes, SLS makes toothpaste foam up.
The amount used is very small, so irritation is low.
Construction materials.
This one shocks most people.
SLS is used to make foam concrete and gypsum boards.
It creates tiny air bubbles inside the material.
Laboratory and research.
Scientists use high-purity SLS for experiments.
It’s a standard ingredient in biology labs.
Powder vs. Needle: What’s the Difference?
SLS comes in two main forms.
Powder form.
Cheaper. Dissolves a bit slower.
Big problem: It flies everywhere. Workers hate the dust.
Needle form.
Looks like short white noodles.
Costs a bit more. But no dust. Dissolves faster.
If your workers complain about powder flying, switch to needles.
Quick Buying Tips
Check the active matter content.
Good SLS should be 92-95% active.
If a supplier says “95%” but the price is too low, ask questions.
Watch the color.
Pure SLS is white. Slightly off-white is okay.
If it’s yellow or gray, the quality is poor.
Smell it.
Good SLS has almost no smell, or a very faint fatty odor.
Strong bad smell = bad raw materials or poor processing.
The Bottom Line
SLS is the muscle of the surfactant world.
Use it when you need power, not gentleness.
It’s cheap, effective, and proven over decades.
Just remember: it’s not for sensitive applications.
Save it for tough jobs.
Performance and Applications
Sodium Lauryl Sulfate (SLS) liquid of this product is a white or light yellow transparent micro sticky, the solid is white or light yellow powder or column (needle).The liquid of this product is a white or light yellow transparent micro sticky, the solid is white or light yellow powder or column (needle).It is commonly used in the industrial detergent and textile industries It is an anionic surfactant. It is easy to dissolve in water, and has good compatibility with anionic and non-ionic compounds, and has good emulsification, foaming, penetration, decontamination and dispersion properties. It is widely used in toothpaste, shampoo, laundry powder, liquid washing, cosmetics and plastic mold release, lubrication and pharmaceutical, paper making, building materials, chemical industry.
(Use 1) Used as detergent and textile additives, but also used as toothpaste foaming agent, mine fire extinguishing agent, emulsion polymerization emulsifier, wool cleaning agent, etc.
(Use 2) Used as anionic surface activator, emulsifier and blowing agent.
(Use 3) Specified as aprocessing aid for the food industry. Foaming agent; Emulsifier; Anionic surfactant. Used in cake, beverage, protein, fresh fruit, juice beverage, edible oil and so on.
(Use 4) Used as washing and textile auxiliaries, also used as toothpaste foaming agent, fire extinguishing foam liquid, emulsion polymerization emulsifier, pharmaceutical emulsifying dispersant, shampoo and other cosmetic products, wool cleaning agentUsed as an emulsifier for drugs, cosmetics and synthetic resins. Toothpaste, blowing agent for fire extinguishers. Used as a detergent for silk and wool fine fabrics. Flotation agent for metal beneficiation.
Storage and transportation package
SLS92% SLS93% SLS94% SLS95% of the product specifications using 20 kg, 25 kg lined plastic kraft paper bag packaging;
SLS30%specifications using 200 kg, ton of plastic bucket packaging. Store in a cool, dry place to avoid the sun and rain.
SLS30%specifications using 1.2ton of plastic bucket packaging. Store in a cool, dry place to avoid the sun and rain.
Company Profile
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