Sodium Propyl Paraben

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Sodium Propyl Paraben is the sodium salt of propylparaben, a white to off-white crystalline powder or granule with the chemical formula C₁₀H₁₂NaO₃. It is a water-soluble antimicrobial preservative used extensively in personal care, pharmaceutical, and food products. Packaged in 25kg containers, it offers excellent stability and effectiveness over a wide pH range. Its antifungal and antibacterial properties make it a reliable choice for preventing microbial contamination and extending shelf life.

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Categories: Analytical Reagents, COSMETIC AND PERSONAL CARE CHEMICALS, Excipients, FOOD AND BEVERAGE CHEMICALS, LABORATORY CHEMICALS, PHARMACEUTICAL CHEMICALS, Preservatives, Preservatives(food) Tags: Food and Beverage Additive, Pharmaceutical formulations, Preservative, Preservative in Cosmetics and Personal Care, Propylparaben Sodium Salt, Sodium Propylparaben

Description

Table of Contents

Sodium Propyl Paraben

Primary Uses

Personal Care & Cosmetics

Preservative in Creams and Lotions: Inhibits microbial growth to maintain product safety.
Shampoos & Conditioners: Prevents spoilage from bacteria and mold in aqueous formulations.
Makeup Products: Used in foundations, mascaras, and lipsticks for shelf-life extension.
Deodorants & Antiperspirants: Maintains microbial integrity in water- and oil-based systems.
Wet Wipes & Facial Cleansers: Ensures hygiene by suppressing bacterial proliferation.

Pharmaceutical Industry

Topical Medications: Preserves ointments, creams, and gels.
Oral Suspensions & Syrups: Ensures microbiological stability in aqueous solutions.
Injectable Solutions (Non-reactive Preservative): Occasionally used where sodium salts are preferred.
Ophthalmic Preparations: Used in combination with other parabens for eye drops and gels.

Food Industry

Preservative in Processed Foods: Used in baked goods, jams, jellies, and sauces (where permitted by regulation).
Beverages: Controls yeast and mold in soft drinks and flavored waters.
Snack Foods & Confectionery: Prevents fungal growth and spoilage in high-moisture environments.

Veterinary Products

Preservative in Animal Health Formulations: Maintains shelf life of topical and oral animal treatments.

Secondary Uses

Industrial Applications

Water-Based Adhesives: Preserves glue and bonding agents from microbial degradation.
Paints & Coatings: Prevents mold formation in water-based interior paints.
Textile Chemicals: Preserves dye pastes and softening agents.

Household Products

Cleaning Solutions: Maintains product integrity in disinfectant wipes and sprays.
Air Fresheners: Prevents degradation in gel- and water-based formulations.

Laboratory & Research

Microbiological Media: Occasionally included in selective culture media as a fungistatic agent.

Pet Care Products

Shampoos & Sprays for Pets: Used in grooming products to prevent microbial spoilage.

PRODUCT KEY FEATURES

Basic Identification Attributes

Chemical Name (IUPAC): Sodium 4-hydroxybenzoate propyl ester
Common/Trade Name: Sodium Propyl Paraben
CAS Number: 35285-69-9
HS Code: 2918.29.00
Synonyms: Propylparaben sodium salt, Sodium propyl-p-hydroxybenzoate

Physical & Chemical Properties

Physical State: Crystalline powder or granules
Color & Odor: White to off-white; faint odor
Solubility: Freely soluble in water and alcohol
Melting Point: Decomposes above 300°C
pH (1% solution): 9.5–10.5
Molecular Weight: 206.19 g/mol

Safety & Hazard Attributes

GHS Classification: Not classified as hazardous under GHS
Toxicity: LD₅₀ (oral, rat) > 5000 mg/kg
Exposure Limits: No established occupational exposure limits
Allergen Status: Generally recognized as non-sensitizing; rare allergic reactions reported

Storage & Handling Attributes

Storage Conditions: Store in a cool, dry place; protect from light and moisture
Container Type: 25kg fiber drums or HDPE-lined bags
Shelf Life: 24 months in original sealed packaging
Handling Precautions: Avoid dust inhalation; use with appropriate PPE

Regulatory & Compliance Attributes

REACH Compliant
FDA Approved (21 CFR 184.1670) – GRAS when used within limits
USP/NF Compliant – Available in pharmaceutical grade
Cosmetic Ingredient Review (CIR) – Assessed as safe when used as directed
E Number: E217 (for food use; subject to regional restrictions)

Environmental & Health Impact

Biodegradability: Readily biodegradable
Ecotoxicity: Low; not expected to bioaccumulate
Bioaccumulation: Not bioaccumulative

Aquatic Impact: Minimal at typical use concentrations

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Gloves, safety glasses, dust mask
Handling Guidelines: Use in well-ventilated areas; avoid creating dust
Storage Measures: Keep containers tightly sealed; segregate from strong oxidizers

First Aid Measures