SODIUM LAURYL SULFATE(NEEDLE)

Hydroxypropyl Methylcellulose (HPMC), also known as Hypromellose, is a non-ionic, water-soluble polymer derived from natural cellulose. It is chemically modified by introducing hydroxypropyl and methyl functional groups, giving it unique properties and versatility across various industries.

Key Properties:

• Appearance: White to off-white, odorless powder or granules.
• Solubility: Soluble in cold water, forming a clear or slightly turbid solution; insoluble in hot water and most organic solvents.
• pH Range: Stable between pH 3 to 11.
• Thermal Gelation: Forms a gel when heated and dissolves upon cooling.
• Viscosity: Available in a wide range of grades, offering varying viscosities.
• Biocompatibility: Non-toxic, inert, and safe for pharmaceutical and food applications.

Applications:

1. Pharmaceutical Industry:

   • Tablet Coatings: Acts as a film-forming agent to improve appearance, control release, and protect from environmental factors.
   • Controlled-Release Formulations: Used in extended-release tablets for consistent drug delivery.
   • Excipient: Functions as a binder, stabilizer, and thickener in oral and topical formulations.

2. Construction Industry:

   • Cement and Mortar: Enhances workability, water retention, and adhesion.
   • Tile Adhesives: Improves open time and bonding strength.
   • Gypsum Products: Increases consistency and reduces cracking.

3. Food Industry:

   • Functions as a stabilizer, emulsifier, and thickener.
   • Commonly used in gluten-free products for texture improvement.
   • Found in sauces, dressings, and low-fat formulations.

4. Cosmetics and Personal Care:

   • Acts as a thickener and film-former in lotions, shampoos, and toothpaste.
   • Provides texture and stability to creams and gels.

5. Industrial Applications:

   • Paints and Coatings: Improves viscosity and stability.
   • Adhesives: Used in glues and binders for its thickening properties.

Sodium Lauryl Sulfate (SLS) Needle refers to the solid, needle-like crystalline form of Sodium Lauryl Sulfate, an anionic surfactant commonly used in detergents, personal care products, and industrial applications. Its needle-shaped form is a result of specific manufacturing processes to optimize handling, solubility, and performance.

Chemical Identity:

• Chemical Name: Sodium dodecyl sulfate
• Formula: C₁₂H₂₅NaO₄S
• Molecular Weight: 288.38 g/mol
• CAS Number: 151-21-3

Key Properties:

• Appearance: White to off-white, needle-shaped crystalline powder.
• Solubility: Highly soluble in water, forming a foamy solution.
• Odor: Faint characteristic odor.
• pH: Neutral to slightly alkaline in aqueous solution (typically pH 7-9).
• Surface Activity: Excellent foaming, emulsifying, and detergent properties.

Applications:

1. Personal Care Products:

   • Commonly used as a surfactant in shampoos, toothpastes, body washes, and facial cleansers.
   • Provides excellent lathering and cleansing properties.

2. Household Cleaning:

   • Used in dishwashing liquids, laundry detergents, and all-purpose cleaners.
   • Removes grease and oils effectively.

3. Industrial Applications:

   • Found in car wash solutions, floor cleaners, and degreasers.
   • Utilized in textile and leather processing for its wetting and emulsifying abilities.

4. Cosmetics:

   • Functions as a foaming agent and emulsifier in creams, lotions, and makeup removers.

5. Pharmaceuticals:

   • Employed in oral hygiene products (toothpastes and mouthwashes) for its foaming action.
   • Sometimes used in topical formulations as a wetting agent.

Advantages of Needle Form:

• Easier to handle and transport compared to powdered forms.
• Reduced dust generation during manufacturing processes.
• Enhanced solubility and dissolution rate in water.

Safety and Handling:

• Safety: SLS can cause irritation to the skin and eyes in concentrated forms. It is generally safe when used in diluted formulations.
• Precautions: Avoid inhalation of dust and direct contact with concentrated material.
• Storage: Store in a cool, dry place away from moisture and heat sources.

Environmental Considerations:

• Biodegradability: SLS is biodegradable but can have moderate aquatic toxicity. Proper wastewater treatment is necessary to minimize environmental impact.

SLS needles are a versatile and effective form of this widely used surfactant, designed for convenience in industrial and consumer product formulations.