Safety & Handling

Comprehensive safety guidance for the responsible handling, storage, transportation, and emergency management of organic peroxides, azo initiators, metal alkyls, and other reactive chemical products.

Emergency Procedures ➡

Our Commitment to Safety

At Shandong Do Sender Chemicals, safety is not just a policy — it is the foundation of everything we do. From production to delivery, we ensure that every product meets the highest international safety standards.

Our products — including organic peroxides, azo initiators, metal alkyls, and polymer additives — are classified as hazardous materials under international regulations. They require specialized knowledge for safe handling throughout the supply chain.

We provide comprehensive Safety Data Sheets (SDS), technical training, and 24/7 emergency support to all our customers worldwide. Our HSE management system is fully integrated and ISO-certified, covering hazard identification, risk assessment, and continuous improvement programs.

This page consolidates essential safety information across our product categories. Always consult the product-specific SDS before handling any chemical. When in doubt, contact our technical team.

Hazard Identification

Clear classification of chemical hazards using GHS pictograms, signal words, and hazard statements for every product.

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Safe Storage

Temperature-controlled storage, segregation protocols, and shelf-life management to prevent decomposition.

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Compliant Transport

UN-certified packaging, IMDG/IATA/ADR compliance, and temperature-monitored logistics for global shipments.

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Emergency Response

24/7 emergency hotline, first-aid procedures, spill containment, and fire-fighting guidance for all product categories.

Organic Peroxides Safety

Organic peroxides are thermally unstable substances that can undergo exothermic self-accelerating decomposition. Proper handling and storage are critical to prevent uncontrolled reactions.

Key Hazards

Primary risk factors for organic peroxides

Self-Accelerating Decomposition (SADT): Organic peroxides can decompose exothermically if their temperature exceeds the Self-Accelerating Decomposition Temperature. This can lead to thermal runaway, fire, or explosion.
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Fire & Explosion Risk: Decomposition produces flammable gases and heat. In confined spaces, pressure buildup can cause explosion. Some peroxides are shock-sensitive.
Skin & Eye Irritation: Many organic peroxides (e.g., MEKP, BPO) are strong skin and eye irritants. Direct contact can cause chemical burns or sensitization.
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Environmental Hazard: Decomposition by-products may be toxic to aquatic life. Spills must be contained immediately to prevent environmental contamination.
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Storage & Handling Rules

Mandatory precautions for organic peroxides

Temperature Control: Always store below the recommended maximum temperature (SADT minus 10–20°C). Use temperature-monitored storage for sensitive products like EHP and TBPP. Never exceed the SADT.
Segregation: Keep away from heat sources, open flames, acids, bases, reducing agents, and heavy metals. Store in dedicated peroxide storage areas with proper ventilation.
Quantity Limits: Observe maximum allowable quantities per storage location as defined by local regulations and fire codes. Maintain proper spacing between containers.
PPE Requirements: Wear chemical-resistant gloves, safety goggles, face shield, and protective clothing. Use in well-ventilated areas or under local exhaust ventilation.

Critical Warning — MEKP (Methyl Ethyl Ketone Peroxide): Perodox MEKP must be stored below 25°C and never mixed with accelerators (cobalt naphthenate/dimethyl aniline) directly. Direct mixing can cause violent, instantaneous decomposition. Always add peroxide to resin — never the reverse.

Critical Warning — EHP (2-Ethylhexyl Peroxydicarbonate): Perodox EHP has a very low SADT and must be stored at or below −10°C. It must be kept refrigerated during storage and transport. Decomposition above SADT can be violent and explosive.

AZO Initiators Safety

AZO initiators (AIBN, ABVN, AIBME) are thermally sensitive free-radical sources. While generally more stable than organic peroxides, they still require careful handling to prevent unintended decomposition.

Key Hazards

Primary risk factors for azo initiators

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Thermal Decomposition: AIBN decomposes at ~65°C (10h half-life). ABVN decomposes at ~51°C. Uncontrolled heating produces nitrogen gas and organic radicals, causing pressure buildup in sealed containers.
Dust Explosion Hazard: AIBN and ABVN are fine powders that can form explosive dust clouds in air. All handling operations must include dust control measures and explosion-proof equipment.
Toxic Decomposition Products: AIBN and ABVN release tetramethylsuccinonitrile (TMSN) upon decomposition — a highly toxic compound (LC50 in rats ~270 mg/m³). Ensure adequate ventilation.
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Skin Sensitization: AIBN may cause skin sensitization with repeated exposure. Always wear appropriate PPE and avoid skin contact.
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Storage & Handling Rules

Mandatory precautions for azo initiators

Cool Storage: Store AIBN and AIBME below 25°C in a dry, dark location. Store ABVN below 10°C (refrigeration recommended). Never store in direct sunlight or near heat sources.
Segregation: Keep away from acids, bases, oxidizing agents, and metal salts. Do not store near peroxides or other reactive chemicals. Avoid contact with copper and its alloys.
Containment: Store in original containers with intact labels. Never transfer to sealed glass containers — decomposition generates gas pressure. Use vented caps where appropriate.
Dust Control: When weighing or transferring powder forms (AIBN, ABVN), use local exhaust ventilation, anti-static equipment, and avoid creating dust clouds. Ground all equipment.

Critical Warning — ABVN (Azobisisovaleronitrile): ABVN has a significantly lower decomposition temperature than AIBN (~51°C vs. ~65°C). It must be stored below 10°C at all times. Even brief exposure to elevated temperatures can trigger self-accelerating decomposition. Transport under refrigeration is mandatory.

Other Products Safety

Beyond organic peroxides and azo initiators, our portfolio includes metal alkyls, polymer additives, and PVC reactor additives — each with unique safety considerations.

Metal Alkyls

Triethylaluminum (TEA), Diethylaluminum Chloride, etc.

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Pyrophoric Nature: Metal alkyls ignite spontaneously upon contact with air (oxygen) or moisture. Even trace exposure to humid air causes immediate ignition. All handling must be under inert atmosphere (nitrogen or argon).
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Violent Water Reaction: Contact with water produces flammable gases (ethane, ethylene) and intense heat. Fires involving metal alkyls must never be extinguished with water — use dry sand, dry chemical powder, or Class D extinguishers only.
Severe Burns: Liquid metal alkyls cause deep thermal and chemical burns. Full PPE is mandatory: flame-resistant clothing, face shield, chemical goggles, and heat-resistant gloves.
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Transport & Storage: Shipped in UN-certified pressure vessels under nitrogen blanket. Store in cool, dry, well-ventilated areas. Maintain inert gas pad at all times. Never open containers to atmosphere.
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Polymer & PVC Additives

Antistatic agents, release agents, suspending agents, etc.

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Lower Hazard Profile: Polymer additives generally present lower acute hazards compared to peroxides and metal alkyls. However, each product has specific handling requirements detailed in its SDS.
Skin & Eye Contact: Some additives may cause irritation or sensitization with prolonged exposure. Always use appropriate PPE (gloves, goggles, protective clothing) when handling.
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Environmental Precautions: Prevent release to waterways. Some additives are harmful to aquatic organisms. Follow local regulations for disposal and waste management.
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Dust Hazards: Powder-form additives (e.g., some suspending agents) may present dust inhalation risks. Use local exhaust ventilation and wear dust masks during transfer operations.

Handling & Storage Guidelines

General best practices that apply across all our reactive chemical product categories. Product-specific requirements always take precedence.

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Storage Best Practices

  • Maintain storage temperatures per SDS specifications
  • Monitor temperature continuously with alarm systems
  • Store in original, clearly labeled containers
  • Observe maximum stack heights and quantity limits
  • Separate incompatible chemicals (acids, bases, reducers)
  • Ensure adequate ventilation in all storage areas
  • Rotate stock using FIFO (First In, First Out) principle
  • Keep fire-fighting equipment accessible and inspected
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Safe Handling Procedures

  • Always read the SDS before handling any product
  • Wear appropriate PPE: gloves, goggles, face shield, apron
  • Use in well-ventilated areas or under fume hoods
  • Never eat, drink, or smoke in chemical handling areas
  • Ground and bond containers when transferring flammables
  • Use non-sparking tools in hazardous atmospheres
  • Keep containers tightly closed when not in use
  • Wash hands thoroughly after handling
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Transport Compliance

  • Use UN-certified packaging for all hazardous materials
  • Comply with IMDG Code for sea freight shipments
  • Follow IATA-DGR for air transport (where permitted)
  • Comply with ADR/RID for European road/rail transport
  • Ensure proper labeling: GHS labels, UN numbers, proper shipping names
  • Maintain temperature control during transit for sensitive products
  • Include safety documentation with every shipment
  • Train personnel in hazardous materials handling regulations

GHS Classification Overview

Key hazard classifications for our major product categories under the Globally Harmonized System (GHS) of Classification and Labelling of Chemicals.

⚠ Hazard Class by Product Category

Product UN Class GHS Category Signal Word
Organic Peroxides Class 5.2 Type B–F Danger
AZO Initiators Class 4.1 Self-reactive Danger
Metal Alkyls Class 4.2 Pyrophoric Danger
Polymer Additives Varies Low hazard Warning
PVC Additives Varies Low–moderate Warning

🌡 Critical SADT / Decomposition Values

Product SADT / 10h t½ Max Storage Temp
Perodox B (DTBP) SADT 100°C ≤ 35°C
Perodox MEKP SADT 55°C ≤ 25°C
Perodox EHP SADT −5°C ≤ −10°C
Perodox DCP SADT 90°C ≤ 35°C
AIBN 10h t½ ~65°C < 25°C
ABVN 10h t½ ~51°C < 10°C
AIBME 10h t½ ~66°C < 25°C

Emergency Response Procedures

If an incident occurs involving any of our products, follow these procedures immediately. Always prioritize personal safety and evacuate the area if necessary.

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Fire

If a fire involves organic peroxides or azo initiators:

  • Evacuate the area immediately — do not attempt to fight large peroxide fires
  • For small fires, use water spray, foam, or dry chemical
  • Never use water on metal alkyl fires — use dry sand or Class D extinguishers
  • Cool surrounding containers with water spray to prevent thermal runaway
  • Call emergency services and provide SDS information
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Spill / Leak

If a spill or leak occurs:

  • Isolate the area and restrict access
  • Wear full PPE before approaching the spill
  • For metal alkyls: never use water — cover with dry sand or inert absorbent
  • For peroxides/azo: absorb with inert material, avoid contamination
  • Collect residue in appropriate containers for disposal
  • Ventilate the area thoroughly after cleanup
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First Aid

Immediate first aid measures:

  • Skin contact: Remove contaminated clothing, wash skin with soap and water for 15+ minutes
  • Eye contact: Rinse with water for 15+ minutes, seek immediate medical attention
  • Inhalation: Move to fresh air, keep warm and at rest, seek medical help
  • Ingestion: Do NOT induce vomiting, rinse mouth, seek immediate medical help
  • Always provide the SDS to medical personnel

24/7 Emergency Hotline

+86 533 629 2888

Available around the clock for any safety-related emergency

Download Safety Documents

Access safety data sheets, technical bulletins, and emergency response guides for our complete product portfolio.

Safety of Organic Peroxides — Comprehensive Guide

Complete handling, storage, transport, and emergency response guidelines for all organic peroxide products in the Perodox portfolio.

Type: Brochure Language: English Format: PDF | 1.2 MB
Safety of AZO Initiators — Handling & Emergency Guide

Detailed safety instructions for AIBN, ABVN, and AIBME, including dust explosion prevention and TMSN exposure management.

Type: Brochure Language: English Format: PDF | 980 KB
Metal Alkyls — Safe Handling & Emergency Procedures

Critical safety guide for pyrophoric metal alkyls including TEA and DEAC. Covers inert atmosphere handling, fire suppression, and PPE.

Type: Brochure Language: English Format: PDF | 1.5 MB
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GHS Classification Reference Card

Quick-reference card summarizing hazard classes, pictograms, signal words, and UN numbers for all Do Sender chemical products.

Type: Reference Card Language: English Format: PDF | 420 KB
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Emergency Response Wall Poster

Printable A2 wall poster for laboratory and warehouse areas, summarizing fire, spill, and first-aid procedures for all product categories.

Type: Poster Language: English Format: PDF | 3.2 MB

Need Safety Assistance?

Our HSE team provides technical training, on-site safety audits, and 24/7 emergency support. Contact us for product-specific safety guidance or to request SDS documentation.

Contact Our Experts

For more information about our products and solutions, please contact our experts. We look forward to hearing from you.

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