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Hostapur OSB is a powdered anionic surfactant based on sodium C14-16 alpha olefin sulfonate (CAS No 68439-57-6) with an active content of about 90 %, used mainly as an air-entraining, wetting and plasticizing agent in cement-, lime- and gypsum-based dry mortars and plasters, and also as a foaming and wetting agent in foamed concrete, detergents, cleaners, textile and leather processing and agrochemical formulations.
The powdered AOS surfactant is valued in building materials because very small additions, typically in the range of a few hundredths of a percent on the dry mix, dissolve quickly in the mixing water, generate a fine and stable micro-foam and give mortars and plasters better workability, pumpability and frost resistance with less shrinkage cracking.
The anionic surfactant powder works at the air–water and solid–water interfaces: its sulfonate head groups and C14-16 hydrocarbon chains lower surface tension, wet cement and filler particles quickly and stabilize small air bubbles that remain trapped as uniformly distributed pores in the hardened mortar.
CAS No: 68439-57-6
EC No: 270-407-8
INCI name: Sodium C14-16 Olefin Sulfonate
Appearance: Fine, white to slightly yellowish powder
Active content: approx. 90 %
Water content: max. approx. 2 %
pH (1 % in water): approx. 10–11
Bulk density: approx. 300 g/L
Ionic character: Anionic
Solubility: Soluble in water
COMMON PRODUCT & CHEMICAL NAMES OF HOSTAPUR OSB:
Hostapur OSB, Hostapur OS Liquid, Sodium C14-16 Olefin Sulfonate, Sodium Alpha Olefin Sulfonate, Sodium α-Olefin Sulfonate, Alpha Olefin Sulfonate, AOS, AOS Powder, Sodium (C14-16) Olefin Sulfonate, Sodium C14-16-Alkane Hydroxy and C14-16-Olefin Sulfonates, Sulfonic Acids, C14-16-Alkane Hydroxy and C14-16-Alkene, Sodium Salts, Alkenes, C14-16 alpha-, Sulfonated, Sodium Salts, Air-Entraining Agent for Dry Mortar, Mortar Foaming Agent
Hostapur OSB and Hostapur OS Liquid are Clariant trade names, the first is the powder grade, the second a liquid form of the same surfactant type. Sodium C14-16 olefin sulfonate is the INCI name, and "sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene, sodium salts" is the chemical (EINECS) description, which reflects that the product is a mixture of alkene sulfonates and hydroxyalkane sulfonates. AOS is the common industry abbreviation.
The air-entraining agent is an olefin sulfonate, not a sulfate. It should not be confused with sodium lauryl sulfate, sodium laureth sulfate or linear alkylbenzene sulfonate, which are different anionic surfactants with different behavior in mortars and detergents. Other Hostapur grades (for example secondary alkane sulfonates) are also chemically different products.
WHAT IS HOSTAPUR OSB?
The air-entraining agent belongs to the group of alpha olefin sulfonates (AOS). These surfactants are produced by sulfonating linear alpha olefins, here with 14 to 16 carbon atoms, with sulfur trioxide, followed by neutralization and hydrolysis with sodium hydroxide. The result is a mixture of sodium alkene sulfonates and sodium hydroxyalkane sulfonates, sometimes with small amounts of disulfonates.
The aqueous AOS solution is then dried to a powder. The powdered AOS surfactant is supplied as a fine, white to slightly yellowish powder with about 90 % active matter. The remainder consists mainly of inorganic salts such as sodium sulfate and sodium carbonate/bicarbonate from the manufacturing process, plus a small amount of water.
Alpha olefin sulfonates combine good foaming, good wetting and good tolerance to hard water. They are more stable to hydrolysis than sulfate surfactants and are readily biodegradable. In construction chemistry, these properties make AOS one of the preferred chemistries for air entrainment in mineral binders.
The anionic surfactant powder is an industrial and technical grade. Its typical specification covers active content, water content, pH of a dilute solution, bulk density and limits for inorganic salts.
In dry mortar production, Hostapur OSB is one of the classic air-entraining agents. Added to factory-made plasters, renders, masonry mortars, adhesives and trowelling compounds, it introduces a controlled amount of air during mixing with water. The fine air bubbles act like tiny ball bearings, making the fresh mortar smoother, lighter, easier to spread and easier to pump. In hardened mortar, the pores interrupt capillaries, relieve internal stresses during drying and give room for ice to expand, which improves frost resistance and reduces cracking.
The powdered AOS surfactant also improves wetting. Dry mixes containing fine fillers or high levels of cellulose ether can be slow to wet and may form lumps or feel sticky. A small amount of Hostapur OSB speeds up wetting, reduces lump formation and lowers tackiness, which is especially useful in machine-applied plasters.
Outside the building industry, Hostapur OSB is a strong foaming and cleaning surfactant. Its powder form and low stickiness make it suitable for detergent powders, carpet and upholstery foam cleaners, and solid formulations such as tablets and agrochemical granules.
For dry mortar producers, Hostapur OSB offers a highly concentrated, easy-to-dose powder that dissolves fast, foams quickly and allows the air content of mortars to be adjusted precisely.
For applicators, mortars and plasters containing Hostapur OSB mix more easily, pump with less resistance, spread more smoothly and show fewer shrinkage cracks.
The anionic surfactant powder can be evaluated in cement and cement-lime plasters and renders, masonry mortars, gypsum plasters, tile and adhesive mortars, skim coats, foamed lightweight concrete, masonry cement, detergent powders, foam cleaners, textile and leather auxiliaries and agrochemical formulations.
CAS NO, EC / EINECS NO AND CHEMICAL IDENTIFICATION OF HOSTAPUR OSB
PRODUCT NAME: HOSTAPUR OSB
Chemical description: Sodium C14-16 alpha olefin sulfonate
INCI name: Sodium C14-16 Olefin Sulfonate
CAS No: 68439-57-6
EC / EINECS No: 270-407-8
Chemical class: Anionic surfactant, alpha olefin sulfonate (AOS)
Main functions: Air-entraining agent, wetting agent, plasticizing aid and foaming agent for mineral building materials, foaming and cleaning surfactant in detergents and cleaners, wetting agent in textile, leather and agrochemical formulations
Because Hostapur OSB is a UVCB substance (a mixture of homologs and isomers), it has no single molecular formula or molecular weight. Its performance depends on the C14/C16 chain distribution, the ratio of alkene to hydroxyalkane sulfonates, the active content and the salt content.
The substance sodium C14-16 olefin sulfonate is listed in the US EPA inert ingredient exemptions for pesticide formulations under 40 CFR 180.920, and the INCI name is used in cosmetics. Hostapur OSB itself is an industrial grade intended for technical applications.
HOW DOES HOSTAPUR OSB WORK IN MORTARS AND PLASTERS?
WETTING
When water is added to a dry mortar, Hostapur OSB dissolves within seconds and lowers the surface tension of the mixing water. The water spreads more quickly over cement, lime, gypsum and filler particles, which reduces mixing time and lump formation.
AIR ENTRAINMENT
During mixing, air is folded into the mortar. Hostapur OSB molecules adsorb at the surface of these air bubbles with their hydrophobic chains in the air and their sulfonate groups in the water. This creates a negatively charged layer that stabilizes the bubbles and prevents them from merging. The result is a large number of small, evenly distributed air pores. Depending on the formulation, air contents in the range of roughly 20–35 % can be achieved in plasters.
PLASTICIZING EFFECT
The air bubbles reduce internal friction between particles. The mortar becomes softer and more plastic at the same water content, which improves spreading, troweling and pumping.
EFFECTS IN THE HARDENED MORTAR
The stable pore system interrupts continuous capillaries, reducing capillary water uptake and the tendency to efflorescence. During drying, the pores relieve stresses, which reduces shrinkage cracking. When water in the mortar freezes, the pores provide space for expansion, improving frost resistance.
REDUCTION OF TACKINESS
High levels of methylcellulose or other cellulose ethers can make plasters sticky. Hostapur OSB reduces this tackiness and makes the fresh mortar easier to work.
MAIN FUNCTIONS OF HOSTAPUR OSB IN BUILDING MATERIALS:
FAST WETTING OF DRY MIXES
Rapid formation of fine, stable micro-foam
Controlled air entrainment
Improved plasticity and workability
Improved pumpability of machine plasters
Lower density of fresh and hardened mortar
Reduced shrinkage and crack formation
Improved frost resistance
Reduced tendency to efflorescence
Reduced tackiness caused by cellulose ethers
Foaming agent for lightweight foamed concrete
DOSAGE OF HOSTAPUR OSB IN DRY MORTARS
Hostapur OSB is extremely efficient, so it is dosed at very low levels.
Typical addition levels: approx. 0.005–0.05 % by weight, calculated on the total dry mortar
Common range for plasters and renders: approx. 0.005–0.025 % by weight on the dry ingredients
At these levels, small weighing errors have a large effect on air content. For consistent production, Hostapur OSB is often pre-blended with a carrier or part of the filler before addition to the main mixer.
The optimum dosage depends on binder type and content, filler grading, cellulose ether type and level, other additives (for example dispersible polymer powders, defoamers, retarders), mixing equipment and mixing time. Too much air entrainment lowers compressive strength and adhesion, so the air content should be checked regularly in production.
IN WHICH SECTORS IS HOSTAPUR OSB USED?
MAIN AREAS OF USE:
FACTORY-MADE CEMENT AND CEMENT-LIME PLASTERS AND RENDERS
Machine-applied plasters
Gypsum plasters and gypsum-based compounds
Masonry mortars and masonry cements
Adhesive mortars and skim coats
Trowelling and putty compounds
Foamed lightweight concrete and foam generator concentrates
Construction chemical admixtures
Detergent powders and laundry tablets
Hand dishwashing and hard surface cleaners
Carpet and upholstery foam cleaners
Vehicle washing and industrial cleaners
Textile and leather wetting, washing and foaming processes
Agrochemical formulations (suspension concentrates, water-dispersible granules)
The building materials industry focuses on air-entraining efficiency, pore stability and consistency between batches. The detergent industry looks at foaming, cleaning power and powder handling, while agrochemical formulators value wetting and dispersing performance in solid and suspension formulations.
IS HOSTAPUR OSB USED IN COSMETIC, FOOD, AND PHARMACEUTICAL APPLICATIONS?
Cosmetics: Sodium C14-16 olefin sulfonate is a well-known cosmetic surfactant in shampoos and body washes. Hostapur OSB, however, is offered as an industrial powder for building materials and technical applications. Cosmetic use requires a cosmetic-grade product with appropriate documentation.
Food: Hostapur OSB is not a food additive and has no E number. It may be used in cleaners for dairy and food processing equipment, where rinsing and the regulations for cleaning agents in food plants must be observed.
Pharmaceuticals: Hostapur OSB is not used as a pharmaceutical ingredient.
INDUSTRIAL APPLICATIONS OF HOSTAPUR OSB
DRY MORTARS AND PLASTERS
Purpose: To control air content, improve workability and reduce cracking.
Role of Hostapur OSB: Air-entraining and wetting agent.
Performance effect: Lighter, more workable mortars with better frost resistance and less shrinkage.
Limitations: Over-dosing reduces strength and adhesion, interactions with defoamers and polymer powders must be checked.
FOAMED LIGHTWEIGHT CONCRETE
Purpose: To produce cellular concrete with low density.
Role of Hostapur OSB: Main foaming component of pre-formed foam or foam concentrates.
Performance effect: Stable foam that survives mixing with cement slurry.
Limitations: Foam stability and compatibility with the cement must be tested, stabilizers may be required.
DETERGENTS AND CLEANERS
Purpose: To provide cleaning and foaming in powders, tablets and foam cleaners.
Role of Hostapur OSB: Primary or co-surfactant.
Performance effect: Strong foaming, good wetting and good hard-water tolerance, low stickiness supports foam cleaners for carpets and upholstery.
TEXTILE AND LEATHER
Purpose: Wetting, washing and foaming in processing steps.
Role of Hostapur OSB: Anionic wetting and cleaning agent.
AGROCHEMICALS
Purpose: To help wet and disperse active ingredients in suspension concentrates and water-dispersible granules.
Role of Hostapur OSB: Wetting agent.
WHICH PROBLEMS CAN HOSTAPUR OSB HELP SOLVE?
MORTARS THAT ARE HEAVY AND DIFFICULT TO APPLY
Air entrainment with Hostapur OSB makes mortars lighter and smoother, so they are easier to spread and trowel.
POOR PUMPABILITY OF MACHINE PLASTERS
Better plasticity and lower internal friction reduce pumping pressure and blockages.
SHRINKAGE CRACKS IN CEMENT AND CEMENT-LIME PLASTERS
The stable pore system reduces drying stresses and the risk of cracking.
FROST DAMAGE
Air pores provide room for ice formation, improving the frost resistance of hardened mortar.
EFFLORESCENCE
By interrupting capillary transport, Hostapur OSB can reduce the tendency of salts to migrate to the surface.
LUMPS AND SLOW WETTING
Fine dry mixes and mixes with high cellulose ether content wet faster and form fewer lumps with Hostapur OSB.
STICKY PLASTERS
Tackiness caused by high methylcellulose levels is reduced.
These benefits must be balanced against strength and adhesion requirements and confirmed in laboratory and site trials.
THINGS TO CONSIDER WHEN USING HOSTAPUR OSB
The most common mistake with Hostapur OSB is over-dosing. Because the product is so effective, a small excess can entrain too much air, reducing compressive strength, bond strength and abrasion resistance.
POINTS TO CONSIDER:
DETERMINE THE DOSAGE IN LABORATORY TRIALS FOR EACH FORMULATION.
Pre-blend with a carrier or filler to ensure uniform distribution.
Measure fresh mortar air content and density regularly.
Check interactions with defoamers, dispersible polymer powders, cellulose ethers and retarders.
Adjust mixing time and mixer type consistently, since air content depends on mixing energy.
Check compressive and flexural strength and adhesion after curing.
Store the powder dry, it is hygroscopic and may cake.
Avoid dust formation and use local exhaust ventilation when handling the powder.
Take precautions against electrostatic charge and dust explosions when handling large quantities.
Concentrated alpha olefin sulfonate powders are irritating, particularly to the eyes. Dust should not be inhaled, and safety goggles, gloves and dust protection should be used during handling. For the hazard classification of Hostapur OSB, please contact Ataman Kimya.
INITIAL FORMULATION APPROACHES FOR HOSTAPUR OSB
The following examples are laboratory starting points for evaluating Hostapur OSB. They are not finished commercial formulations. Raw materials, mixing equipment and test methods can influence the results, so trials should be adapted to the specific product and local standards.
The percentage compositions below are illustrative laboratory starting mixtures, not validated commercial recipes. Each totals 100 % on the stated basis, optimise with the selected raw materials and process.
EXAMPLE 1: HOSTAPUR OSB DOSAGE SCREENING IN A CEMENT-LIME MACHINE PLASTER
Objective: To determine the Hostapur OSB dosage that gives the target air content and workability without unacceptable loss of strength.
INITIAL COMPONENTS (BY WEIGHT OF DRY MORTAR):
Portland cement: approx. 8–12 %
Hydrated lime: approx. 6–10 %
Graded limestone or quartz sand: balance
Cellulose ether (methylcellulose type): approx. 0.05–0.1 %
Hostapur OSB: approx. 0, 0.005, 0.01, 0.02 and 0.03 %
APPLICATION APPROACH:
HOSTAPUR OSB IS PRE-BLENDED WITH A SMALL PORTION OF THE FILLER.
All dry components are mixed until homogeneous.
The dry mortar is mixed with a fixed amount of water using a standard mixer and mixing time.
Fresh mortar consistency, air content and density are measured.
Workability and pumpability are assessed in a small machine trial if available.
Specimens are prepared and tested for compressive and flexural strength, adhesion, shrinkage and capillary water absorption.
The dosage giving the best balance of workability, air content and strength is selected.
ILLUSTRATIVE DRY-MIX COMPONENTS (% W/W)
Portland cement: 10.000 %
Hydrated lime: 8.000 %
Graded limestone or quartz sand: 81.905 %
Cellulose ether: 0.075 %
Hostapur OSB: 0.020 %
Total: 100.000 %
For the 0, 0.005, 0.01 and 0.03 % surfactant trials, use respectively 81.925, 81.920, 81.915 and 81.895 % sand, keep the other ingredients fixed. Mixing water is outside this dry-mix basis.
EXAMPLE 2: REDUCING TACKINESS IN A GYPSUM PLASTER WITH HOSTAPUR OSB
Objective: To evaluate the effect of Hostapur OSB on the stickiness and workability of a gypsum plaster containing a high level of cellulose ether.
INITIAL APPROACH:
GYPSUM PLASTER BASE WITH RETARDER AND PERLITE: CONSTANT
Cellulose ether: constant at the level that causes noticeable tackiness
Hostapur OSB: approx. 0, 0.005, 0.01 and 0.02 %
APPLICATION APPROACH:
PLASTERS ARE MIXED UNDER IDENTICAL CONDITIONS.
Wet density, air content, setting time and water retention are measured.
Tackiness and ease of troweling are evaluated by experienced applicators.
Hardened properties such as density and strength are compared.
ILLUSTRATIVE DRY-MIX COMPONENTS (% W/W)
Gypsum binder: 95.770 %
Perlite: 4.000 %
Cellulose ether: 0.200 %
Retarder: 0.020 %
Hostapur OSB: 0.010 %
Total: 100.000 %
For the 0, 0.005 and 0.02 % surfactant trials, use respectively 95.780, 95.775 and 95.760 % gypsum binder. Confirm the retarder type and level experimentally, mixing water is outside this dry-mix basis.
EXAMPLE 3: FOAMED LIGHTWEIGHT CONCRETE WITH HOSTAPUR OSB FOAM
Objective: To prepare pre-formed foam with Hostapur OSB and evaluate foamed concrete density and stability.
INITIAL APPROACH:
FOAMING SOLUTION: HOSTAPUR OSB DISSOLVED IN WATER AT A FEW PERCENT ACTIVE CONTENT
Optional foam stabilizer: according to formulation strategy
Cement slurry: cement, water and optional fine filler at a fixed water/cement ratio
Target dry density: for example 600, 800 and 1000 kg/m³
APPLICATION APPROACH:
THE FOAMING SOLUTION IS PASSED THROUGH A FOAM GENERATOR TO PRODUCE PRE-FORMED FOAM OF CONTROLLED DENSITY.
Foam is mixed into the cement slurry in calculated quantities to reach the target density.
Fresh density, foam stability and settlement are measured.
Specimens are cured and tested for dry density, compressive strength and thermal conductivity.
Foam concentration and stabilizer level are adjusted to reduce collapse and density deviations.
ILLUSTRATIVE FOAMING-SOLUTION COMPONENTS (% W/W)
Water: 96.667 %
Hostapur OSB (approximately 90 % active): 3.333 %
Total: 100.000 %
This gives approximately 3 % active surfactant. Any optional stabilizer replaces an equal mass of water.
ILLUSTRATIVE CEMENT-SLURRY COMPONENTS BEFORE FOAM ADDITION (% W/W)
Cement: 66.667 %
Water: 33.333 %
Total: 100.000 %
The water/cement mass ratio is approximately 0.50. Foam addition changes the final mass composition, calculate foam volume from measured foam density and the target concrete density. These component lists alone do not establish the stated dry-density targets.
HOSTAPUR OSB SIMILAR PRODUCTS AND ALTERNATIVES
HOSTAPUR OSB AND OTHER AOS PRODUCTS
Other sodium C14-16 alpha olefin sulfonates are available as powders and liquids. Active content, salt content and particle size can differ, which affects dosing and dissolution speed.
HOSTAPUR OSB AND SODIUM LAURYL SULFATE
Sodium lauryl sulfate is also used as an air-entraining and foaming agent. AOS-based Hostapur OSB generally offers better hydrolytic stability and good hard-water tolerance.
HOSTAPUR OSB AND VINSOL RESIN OR ROSIN-BASED AGENTS
Natural resin soaps are traditional air-entraining agents for concrete. They form different pore structures and are typically used in liquid concrete admixtures rather than in dry mortars.
HOSTAPUR OSB AND PROTEIN-BASED OR SYNTHETIC FOAM CONCENTRATES
For foamed concrete, protein-based foaming agents can give very stable foam, while synthetic agents such as AOS are easier to handle and more consistent.
HOSTAPUR OSB AND NON-IONIC WETTING AGENTS
Non-ionic surfactants can improve wetting with less air entrainment and may be preferred where high air content is not desired.
The best choice depends on the binder system, the required air content and the other additives used.
HOW DOES HOSTAPUR OSB WORK AT THE MOLECULAR LEVEL?
Hostapur OSB is a sodium olefin sulfonate, an anionic surfactant of the C14–16 alpha-olefin sulfonate type, supplied as a powder. It is produced by sulfonating linear alpha-olefins and then neutralising and hydrolysing the product, so the active matter is a mixture of two related structures: alkene sulfonates, which keep a double bond in the hydrocarbon chain, and hydroxyalkane sulfonates, which carry a hydroxyl group near the sulfonate head. Both share a C14–16 hydrophobic tail and a negatively charged sulfonate group, and the balance between them shapes how the surfactant behaves.
Adsorption at interfaces: In water, the sodium olefin sulfonate dissociates into sodium ions and surfactant anions. The hydrocarbon tails escape from water and accumulate at air–water and oil–water interfaces, while the charged sulfonate heads stay in the water phase. This orientation lowers surface and interfacial tension, so cleaning solutions wet fabrics, dishes and hard surfaces quickly and penetrate greasy soil.
Micelles and soil removal: Above a certain concentration, the anions assemble into micelles with a hydrophobic core. Oily and fatty soil loosened from a surface is taken up into these cores and held in the wash water. The negative charge on the micelle surface and on soil particles coated with surfactant causes mutual repulsion, which helps prevent redeposition on cleaned surfaces.
Role of the two structural components: The alkene sulfonate fraction is more hydrophobic and contributes strongly to surface activity and detergency. The hydroxyalkane sulfonate fraction, with its additional hydroxyl group, is more hydrophilic; it improves water solubility and tolerance to hardness ions. Together they give alpha-olefin sulfonates a broad, robust performance profile across different water conditions.
Hard water tolerance: Many anionic surfactants lose effectiveness in hard water because calcium and magnesium ions bind to their head groups and form poorly soluble salts. The calcium salts of olefin sulfonates are comparatively soluble, especially because of the hydroxyl-bearing fraction, so a larger share of the surfactant remains active. This helps maintain foam and cleaning power in hard water.
Chemical stability: In olefin sulfonates, the sulfur atom is bonded directly to carbon. This C–S bond does not hydrolyse under normal use, unlike the C–O–S linkage of alkyl sulfates and ether sulfates, which can split in acidic or hot conditions. As a result, Hostapur OSB remains stable over a wide pH range, from acidic toilet cleaners to alkaline hard surface and laundry products.
Foam formation: At bubble surfaces, the anions pack into a charged film. Electrostatic repulsion between the two charged layers of a foam lamella slows thinning and drainage, while the packed tails provide surface elasticity. This produces a rich, stable foam, which is valued in hand dishwashing and other consumer cleaning products.
Low viscosity build-up: Some anionic surfactants form elongated, worm-like micelles when salt is added, which strongly thickens the product. Olefin sulfonates of this type show a low tendency to build viscosity, because the mix of chain structures and hydrophilic groups favours smaller, more spherical micelles. This allows concentrated formulations to remain pourable and makes it easier to formulate clear, low-viscosity cleaners.
Interaction with other surfactants: In blends with non-ionic or amphoteric surfactants, the olefin sulfonate forms mixed micelles. Non-ionic molecules reduce repulsion between neighbouring sulfonate heads, which lowers the concentration needed to form micelles and improves grease removal. Amphoteric surfactants such as betaines can additionally improve mildness and foam quality.
Behaviour in the environment: Linear alpha-olefin sulfonates are built on unbranched chains, which microorganisms can break down through normal oxidation pathways. This linear structure supports good biodegradability.
Cleaning, foaming and viscosity behaviour depend on concentration, water hardness, pH, temperature, electrolyte level and the other surfactants and additives in the formulation. Hostapur OSB dosage and formulation conditions should therefore be confirmed through laboratory trials.
QUALITY CONTROL AND PURCHASING CRITERIA FOR HOSTAPUR OSB
RECOMMENDED INFORMATION TO REVIEW BEFORE PURCHASING:
PRODUCT NAME AND GRADE (POWDER OR LIQUID)
Active content
Water content
pH of a 1 % solution
Bulk density
Sodium sulfate content
Sodium carbonate and bicarbonate content
Particle size and flow behavior
Color and appearance
Technical Data Sheet (TDS)
Safety Data Sheet (SDS)
Certificate of Analysis (COA)
Batch number and production date
Packaging type and net weight
Storage conditions and shelf life
REACH information
Because Hostapur OSB is dosed in very small amounts, consistent active content from batch to batch is essential for stable air content in production.
STORAGE AND HANDLING OF HOSTAPUR OSB
Hostapur OSB should be stored in tightly closed original packaging in a dry, cool and well-ventilated place. The powder is hygroscopic and can cake if it absorbs moisture.
A storage temperature below approx. 40 °C is recommended. The shelf life is given as at least two years when stored in tightly closed containers at about 20–25 °C in a clean, dry place. After this period, the product should be tested before use.
Dust formation should be avoided, and dust deposits should not be allowed to accumulate on surfaces. Equipment should be grounded during loading and unloading to prevent electrostatic charges, and ignition sources should be kept away, because fine organic dust can form explosive mixtures with air.
Transport: For the transport classification of Hostapur OSB, please contact Ataman Kimya.
Spilled powder should be picked up mechanically with minimal dust generation, remaining residues can be rinsed with water, preventing large amounts from entering drains or waterways.
SAFETY INFORMATION OF HOSTAPUR OSB
Hazard classification: For the hazard classification and labeling of Hostapur OSB, please contact Ataman Kimya. Concentrated alpha olefin sulfonate powders are generally irritating and can cause serious eye irritation or damage.
Eye contact: Hold eyelids apart and rinse with plenty of water for at least 15 minutes, seek medical attention.
Skin contact: Remove contaminated clothing and wash thoroughly with soap and water, seek medical attention if irritation occurs.
Inhalation: Move to fresh air, seek medical advice if symptoms occur.
Ingestion: Rinse mouth, do not induce vomiting, call a poison center or doctor.
Fire: Organic powder, dust clouds may be explosive. Use water spray or foam. Combustion produces carbon oxides and sulfur oxides.
Personal protection: Safety goggles, chemical-resistant gloves, protective clothing and dust respirator where dust is generated.
Environment: Hostapur OSB is readily biodegradable, but concentrated product should not enter drains or waterways.
Waste: Dispose of according to local regulations.
WHAT SHOULD BE CONSIDERED WHEN BUYING HOSTAPUR OSB?
BEFORE PURCHASING, THE FOLLOWING INFORMATION SHOULD BE CLARIFIED:
APPLICATION (DRY MORTAR, FOAMED CONCRETE, DETERGENT, TEXTILE, AGROCHEMICAL)
Required form (powder or liquid)
Active content and salt limits
Particle size and flow requirements for dosing systems
Quantity and packaging
Documentation needs (TDS, SDS, COA, REACH)
Current air-entraining agent and dosage if replacing an existing product
The price of Hostapur OSB depends on alpha olefin and energy costs, drying and processing costs, active content, order volume, packaging and logistics.
SUPPLY OF HOSTAPUR OSB FROM ATAMAN KIMYA
The air-entraining agent is a powdered alpha olefin sulfonate widely used as an air-entraining and wetting agent in dry mortars and as a foaming surfactant in detergents and technical applications. Companies planning to purchase it should define the application, form and specification requirements in advance.
Ataman Kimya can provide information on Hostapur OSB availability, specifications, packaging and price quotations.
Current stock, origin and specification details should be confirmed with Ataman Kimya before ordering.
INFORMATION THAT HELPS PREPARE A QUOTATION:
APPLICATION AND TARGET PRODUCT
Required form and specification
Estimated quantity
Packaging preference
Required documents
FREQUENTLY ASKED QUESTIONS ABOUT HOSTAPUR OSB
WHAT IS HOSTAPUR OSB?
The powdered AOS surfactant is a powdered anionic surfactant based on sodium C14-16 alpha olefin sulfonate, used mainly as an air-entraining and wetting agent in dry mortars and plasters.
WHAT IS THE CHEMICAL COMPOSITION OF HOSTAPUR OSB?
It consists of about 90 % sodium C14-16 alpha olefin sulfonate, with small amounts of sodium sulfate, sodium carbonate/bicarbonate and water.
WHAT IS THE CAS NUMBER OF HOSTAPUR OSB?
The CAS number of sodium C14-16 olefin sulfonate is 68439-57-6.
WHAT IS THE EC NUMBER OF HOSTAPUR OSB?
The EC number is 270-407-8.
IS HOSTAPUR OSB A SULFATE OR A SULFONATE?
It is a sulfonate (alpha olefin sulfonate), not a sulfate.
WHAT DOES HOSTAPUR OSB DO IN MORTAR?
It wets the dry mix quickly, entrains fine stable air bubbles, improves workability and pumpability, reduces shrinkage cracking and improves frost resistance.
HOW MUCH HOSTAPUR OSB IS USED IN DRY MORTAR?
Typically about 0.005–0.05 % by weight of the dry mortar, for plasters often about 0.005–0.025 %.
WHAT AIR CONTENT CAN BE ACHIEVED WITH HOSTAPUR OSB?
Depending on the formulation, air contents of roughly 20–35 % can be reached in plasters.
CAN HOSTAPUR OSB BE USED FOR FOAMED CONCRETE?
Yes. It is used as a foaming agent for pre-formed foam and foam concentrates for lightweight foamed concrete.
CAN HOSTAPUR OSB BE USED IN GYPSUM PLASTERS?
Yes. It is used as an air-entraining and wetting agent in cement-, lime- and gypsum-based systems.
IS HOSTAPUR OSB USED IN DETERGENTS?
Yes. It is used in detergent powders, tablets and foam cleaners for carpets and upholstery.
IS HOSTAPUR OSB SOLUBLE IN WATER?
Yes. It dissolves rapidly in water.
WHAT IS THE PH OF HOSTAPUR OSB?
A 1 % aqueous solution has a pH of about 10–11.
IS HOSTAPUR OSB BIODEGRADABLE?
Yes, it is readily biodegradable.
IS HOSTAPUR OSB HAZARDOUS?
Concentrated AOS powders are irritating, especially to the eyes. For the hazard classification of Hostapur OSB, please contact Ataman Kimya.
HOW SHOULD HOSTAPUR OSB BE STORED?
Dry, in tightly closed packaging, below about 40 °C, away from heat and ignition sources.
WHAT IS THE SHELF LIFE OF HOSTAPUR OSB?
At least two years in tightly closed containers at about 20–25 °C.
WHAT ARE ALTERNATIVES TO HOSTAPUR OSB?
Other AOS products, sodium lauryl sulfate, resin-based air entrainers, protein foaming agents and non-ionic wetting agents, depending on the application.
WHAT DOCUMENTS SHOULD BE REQUESTED WHEN BUYING HOSTAPUR OSB?
TDS, SDS, COA and REACH information.
WHICH SPECIFICATIONS ARE IMPORTANT WHEN BUYING HOSTAPUR OSB?
Active content, water content, pH, bulk density and inorganic salt content.
HOSTAPUR OSB – TECHNICAL SUMMARY
The anionic surfactant powder is a powdered sodium C14-16 alpha olefin sulfonate (CAS 68439-57-6, EC 270-407-8) with about 90 % active content, a pH of about 10–11 (1 % solution) and a bulk density of about 300 g/L.
In cement-, lime- and gypsum-based mortars and plasters, Hostapur OSB acts as a highly efficient air-entraining, wetting and plasticizing agent at typical dosages of about 0.005–0.05 % on the dry mix, improving workability, pumpability, frost resistance and crack resistance.
The air-entraining agent is also used as a foaming agent for lightweight foamed concrete and as a surfactant in detergents, cleaners, textile and leather processing and agrochemical formulations.
Dosage must be optimized carefully because excessive air entrainment reduces strength and adhesion. The powder is hygroscopic and should be stored dry, below about 40 °C, with precautions against dust and static charge.
Companies planning to source Hostapur OSB through Ataman Kimya are advised to share their application, required form, specification, quantity and documentation needs to confirm current product, stock, origin, packaging and quotation details.
The powdered AOS surfactant can be sourced from ATAMAN KİMYA. For further information and supply inquiries about Hostapur OSB, please contact ATAMAN KİMYA.
