Butylparaben: An Insider’s Look at Material Safety Data Sheets (MSDS)

Identification

Chemical Name: Butylparaben
CAS Number: 94-26-8
Synonyms: Butyl p-hydroxybenzoate
Common Uses: Preservative in cosmetics, pharmaceuticals, personal care products
Appearance: White crystalline powder, faint odor
Odor Threshold: Not easily perceivable
Common Manufacturing Context: We turn out tons of butylparaben for use in skin creams and shampoos, so clear labeling eliminates confusion and mix-ups on shipping docks and manufacturing floors.

Hazard Identification

GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 3), Not classified as carcinogenic under current IARC evaluation
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation on direct, prolonged contact
Label Elements: Irritant pictogram
Potential Health Effects: Contact can cause itching, stinging, or redness on skin and eyes. Repeated, large exposure may upset routine skin flora in sensitive users.
Environmental Hazards: Moderately hazardous to aquatic organisms over time, so responsible handling keeps run-off out of wastewater streams.
Note on Handling: Spilled powder becomes slippery and tracks through work areas if not contained immediately.

Composition / Information on Ingredients

Substance: Pure butylparaben with minor, tightly controlled residuals from production
Purity: More than 99 percent in most batches
Impurities: Trace solvents from synthesis steps kept at negligible levels, monitored batch-by-batch
Formulation Note: Some end-users blend with propylene glycol or other parabens, but our product leaves the plant as a high-purity raw material.

First Aid Measures

Eye Contact: Rinse with clean, running water for several minutes; avoid rubbing. Medical checkup if symptoms persist.
Skin Contact: Wash thoroughly with soap and water. Remove any contaminated clothing to cut down on skin contact time.
Inhalation: Move affected worker to fresh air if significant dust inhaled, and monitor for irritation or discomfort in nose or throat.
Ingestion: Rinse mouth with water. Assess for irritation or nausea. Seek medical oversight in cases of large or known ingestion.
General Advice: We keep eyewash stations near our blending and packaging lines, as well as gloves and protective clothing for operators.

Fire-Fighting Measures

Suitable Extinguishers: Dry chemical, carbon dioxide, alcohol-resistant foam
Specific Hazards: Fine dust accumulations in air can form explosive mixtures if ignited by spark or flame — same caution as other powdered organics.
Protective Equipment: Firefighters wear self-contained breathing apparatus; chemical-resistant gear kept close at hand by our emergency response crew.
Thermal Decomposition: Releases fumes containing carbon monoxide, carbon dioxide. Working exhaust fans and dust controls minimize build-up of loose powder.

Accidental Release Measures

Personal Precautions: Ventilate area, keep dust to a minimum. Workers use dust masks, gloves, goggles.
Environmental Precautions: Prevent spillage from entering stormwater drains, especially near production outfalls.
Containment: Sweep up material with non-sparking tools, transfer to waste drums for collection. Avoid dry sweeping in confined spaces.
Decontamination: Wet-wipe residues and wash floors after powder removal. Wash thoroughly before breaks or lunch.
Team Response: Our own safety teams drill regularly for spills, especially after bag breaks or transfer mishaps.

Handling and Storage

Handling: Use local exhaust ventilation at conveyor filling points. Avoid generating airborne dust. Operators wear fitted dust masks.
Storage: Store in cool, dry warehouse with controlled humidity. Keep out of direct sunlight. Original packaging resists moisture pick-up.
Incompatibilities: Keep away from strong oxidizers or acids commonly found in cleaning supply areas. Segregate from reactive chemistry zones.
Good Practice: Clean up any spills on loading docks without delay; avoid pile-ups or leaky bags on pallets.
Facility Standards: Storage aisles remain clear for forklift movement; separate “hazardous dry room” for large volume drums.

Exposure Controls and Personal Protection

Engineering Controls: Source capture ventilation and regular air quality monitoring at bulk transfer points.
Personal Protective Equipment: Dust mask, nitrile gloves, goggles for drum dumpers and packagers.
Exposure Limits: No OSHA PEL for butylparaben, but internal hygiene targets support well below nuisance dust levels.
Worker Practice: Regular glove and mask changes required. Protective clothing laundered on-site — no take-home uniforms.
Special Precautions: Medical monitoring offered for sensitive skin or respiratory conditions among plant staff.

Physical and Chemical Properties

Physical State: Solid, crystalline
Odor: Faint, sweet
Melting Point: Near 68 degrees Celsius
Boiling Point: No data at standard pressure (decomposes)
Vapor Pressure: Negligible
Solubility: Slightly soluble in cold water, readily in alcohol
Density: About 1.2 g/cm³
Partition Coefficient: Log Pow estimated around 3.2
Appearance Under Magnification: Crystals clump if exposed to humidity.

Stability and Reactivity

Chemical Stability: Stable under normal warehouse and plant conditions
Hazardous Reactions: Not prone to violent reaction, but melts and fumes if combined with strong oxidizers or heated extremes
Conditions to Avoid: Wet, humid staging areas; uncontrolled heat near processing ovens or dryers
Incompatible Materials: Acid chlorides, nitric acid, strong bases
Decomposition Products: Fumes contain carbon monoxide, carbon dioxide; ventilation keeps operator exposure minimal during cleaning.

Toxicological Information

Acute Toxicity: Low oral toxicity in animals; high doses needed to see significant health effects.
Skin/Eye Irritation: Known mild irritant, mostly with repeated or prolonged contact.
Sensitization: Rare cases of allergic skin reaction, flagged during quality assurance checks for customers with sensitive end-users.
Carcinogenicity: No recognized evidence of cancer risk.
Repeated Dose Effects: Very few documented problems from occupational exposure in our plant, provided hygiene is followed.

Ecological Information

Aquatic Toxicity: Moderately toxic to fish and aquatic insects over longer-term, larger-scale exposure
Persistence: Tends to break down slowly in surface water, faster in sunlight
Bioaccumulation: Some build-up possible in organisms but not persistent in food webs at observed concentrations
Degradation: Environmental breakdown products are well-studied and tracked through routine effluent testing
Sustainable Practice: On-site filtration keeps discharge levels below regulatory thresholds for local water bodies.

Disposal Considerations

Waste Handling: Avoid discharge to sewer; collect spilled or excess powder for incineration or controlled landfill
Container Disposal: Empty bags and drums go to industrial waste after triple rinsing and puncture
Local Rules: All plant waste streams checked quarterly to meet tightening disposal standards in every region we ship
Minimizing Waste: Production batches sized to sold demand; off-grade lots held for internal recycling or disposal according to local laws.

Transport Information

UN Number: Not classified as hazardous for transport
Shipping Name: Butylparaben as formulated
Hazard Class: No transport restrictions for standard ground, air, or sea shipment
Packing Group: Not required
Special Precautions: Packaged drums, bags, or totes sealed against humidity; handled as industrial chemical in bulk with reinforced pallets for export containers.

Regulatory Information

Labeling: Follows GHS and regional right-to-know laws
Inventory Listing: Registered under TSCA (United States), EINECS (European Union), and other major chemical control systems
Restrictions: Concentration limits apply in some finished cosmetic and personal care formulations
Reporting: Facility emission, exposure, and waste volumes documented yearly as part of compliance audits — regulators verify on-site
Continuous Review: Ongoing updates as new international safety data or classification changes arrive, commitments to public and worker safety take precedence in every major decision on plant floor or lab bench.