Understanding MSDS Information for Sodium Methylparaben: A Manufacturer’s Perspective

Identification

Name: Sodium Methylparaben Chemical Formula: C8H7NaO3 CAS Number: 5026-62-0 Appearance: White, free-flowing, crystalline powder. Characteristic odor is faint and non-lingering. Soluble in water, less so in alcohol. Applications reach far, from personal care products to pharmaceuticals as a preservative due to its reliable antimicrobial effect.

Hazard Identification

Hazard Class: Not classified as hazardous under GHS. Routes of Exposure: Inhalation, skin contact, eye contact, ingestion. Main Risks: Mild irritation to eyes and skin can occur from dust contact. Inhalation of dust may bother sensitive individuals causing cough or minor throat discomfort. Not combustible, but fine particulates may enhance fire risk with strong oxidizers.

Composition / Information on Ingredients

Main Component: Sodium methylparaben, purity consistently above 99% when produced properly using industrial reaction between methylparaben and sodium hydroxide. No significant secondary ingredients or hazardous additives are found in reputable material.

First Aid Measures

Skin Contact: Wash area with water and remove contaminated clothing. Eye Contact: Flush eyes thoroughly with clean water for several minutes. Inhalation: Move to fresh air if irritation arises. Ingestion: Rinse mouth; for large accidental intake, seek medical advice. In decades of batch handling, adverse incidents rarely require more than these basic actions.

Fire-Fighting Measures

Extinguishing Media: Use foam, dry chemical, or CO2 extinguishers. Fire Hazards: Product itself doesn’t burn easily, but dust buildup in the air presents a risk if combined with an ignition source and oxidizer. Protective Gear: Standard firefighting gear is sufficient—no exotic protocols. We train teams to handle fine powder fires like any combustible organic dust material; local ventilation and careful housekeeping can keep this risk low.

Accidental Release Measures

Containment: Scoop or vacuum up the powder, minimize dust creation. Cleanup: Use damp cloth or approved industrial vacuums. Sweep up residues, bag securely for disposal. Environmental Precautions: Avoid allowing large amounts to enter drains or water sources. Use absorbent material for spills, especially near processing equipment or loading areas.

Handling and Storage

Handling: Handle in well-ventilated areas, wear basic dust masks and safety goggles. Avoid open bags or unnecessary transfer to keep airborne particles low. Storage: Store tightly sealed in a dry, cool place away from sunlight and incompatible substances like strong acids or oxidizers. Dedicated storage containers preserve quality, and regular rotation prevents caking common in older stocks.

Exposure Controls and Personal Protection

Engineering Controls: Local exhaust or dust extraction systems recommended at material transfer points. Personal Protective Equipment: Lightweight gloves, goggles, and disposable masks for powder exposure—nothing complicated, but we always enforce their use in production and packing zones. Exposure Limits: No specific regulatory exposure limit. Internal benchmarks follow common-sense occupational hygiene guidelines for nuisance dust, keeping total inhalation below recommended thresholds for particulates.

Physical and Chemical Properties

Physical State: Solid Appearance: White crystalline powder Odor: Slight, non-persistent pH (1% aqueous solution): Around 9-10 Solubility: Easily dissolves in water in normal use concentrations. Melting Point: Decomposes above 250°C Bulk Density: Consistent performance at 0.4–0.5 g/cm³, but small variations depend on particle size.

Stability and Reactivity

Stability: Stable in storage for at least two years when properly sealed and kept dry. Incompatibilities: Avoid mixing with strong acids, oxidizers. Decomposition: Upon strong heating, may generate trace formaldehyde, sodium compounds, and methyl derivatives. Day-to-day processing never reaches these conditions, but periodic maintenance reduces any remote risk from accidental overheating of lines or dryers.

Toxicological Information

Acute Toxicity: Oral LD50 in rats is several grams per kilogram, reflecting low toxicity. Skin/Eye Effects: Occasional mild irritation, especially in individuals with sensitive skin types, is manageable with simple precautions. Chronic exposure on production lines rarely produces symptoms when PPE is followed. Allergenic Potential: Documented allergic reactions occur extremely rarely; awareness campaigns help laboratory and packing staff recognize early symptoms.

Ecological Information

Aquatic Toxicity: Low environmental hazard in typical applications; high concentrations in water can cause mild toxicity to aquatic micro-fauna, which routine effluent checks prevent. Biodegradation: Product breaks down slowly under environmental conditions, which makes spill containment essential in upstream stages of manufacture. Our in-house audits focus on minimizing wash-down losses and controlling all batch effluent streams.

Disposal Considerations

Disposal Method: Dispose through chemical waste streams in line with local regulations on organic solids. As sodium methylparaben has low toxicity and no heavy metals, incineration or controlled landfill disposal is often practical, but we always advise partners to route waste via licensed handlers.

Transport Information

UN Number: Not regulated as a hazardous material for road, rail, air, or sea. Transport Conditions: Ship in sealed containers protecting from moisture and heat, away from incompatible substances. Good labeling keeps downstream errors rare. Special Precautions: Avoid packaging with oxidizers or corrosives; use tamper-proof seals where high purity is critical for end users.

Regulatory Information

Classification: Not classified as a dangerous substance under global GHS/EU CLP/US OSHA standards. Inventories: Listed in key regulatory and chemical inventories (e.g., EINECS, TSCA). Worker Protections: Observe good manufacturing practice and occupational hygiene laws—regular training, PPE, and monitoring controls risks in our facilities. Updates from regional agencies help us keep documentation current.