⚗️ Sinolook Chemical · Electronic Chemicals

1,2-Diaminocyclohexane Hazards, SDS & Safe Handling Guide

⚠️ GHS · PPE · storage · spill response · UN 2735

1,2-Diaminocyclohexane (DACH) is a genuinely useful diamine - but it is also corrosive and must be handled with respect. This guide gives a clear, honest summary of the hazards, safety data, and handling practices for CAS 694-83-7, so buyers and EHS teams know what to expect before the drum arrives. ⚠️

📌 Important: This article is an orientation summary, not a substitute for the official Safety Data Sheet. Always read the supplier's current, batch-specific SDS and follow local regulations before handling DACH.

🏷️ GHS Classification & Hazard Statements

Under the Globally Harmonized System, 1,2-diaminocyclohexane carries the signal word Danger. The commonly reported hazard statements include: 🔬

Code	Hazard statement
H302	Harmful if swallowed
H312	Harmful in contact with skin
H314	Causes severe skin burns and eye damage
H317	May cause an allergic skin reaction
H332	Harmful if inhaled
H335	May cause respiratory irritation

The corrosivity (H314) and skin-sensitization (H317) hazards are the ones to plan around most carefully. Authoritative classification data is published on the ECHA and PubChem databases.

🧤 Recommended Personal Protective Equipment

🧤 Hands: chemical-resistant gloves (check breakthrough time for amines)

🥽 Eyes/face: chemical safety goggles; face shield for splashing risk

🥼 Body: impervious apron / chemical-resistant clothing

😷 Respiratory: ventilation or approved respirator where vapor/mist may form

🚿 Facilities: eyewash station and safety shower within immediate reach

📦 Safe Storage

As a corrosive, hygroscopic base, DACH stores best under controlled conditions: 💡

✅ Keep tightly closed in original corrosion-resistant containers, away from moisture and CO₂.

✅ Store cool, dry, and well-ventilated; protect from heat and ignition sources (flash point ~69 °C).

✅ Segregate from acids, oxidizers, isocyanates, epoxides, anhydrides, and acid halides - DACH reacts with all of these.

✅ Note that the trans isomer can solidify below ~14 °C; condition to liquid before dispensing.

For the underlying property values (flash point, melting point), see 1,2-Diaminocyclohexane Properties.

🧯 Spill Response & First-Aid Basics

🧯 Spill: Evacuate non-essential personnel, ventilate, wear full PPE, contain and absorb with inert material, and collect for disposal per regulations. Avoid washing large quantities to drain.

👁️ Eye contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy; get medical attention.

🤚 Skin contact: Remove contaminated clothing; wash with plenty of water; seek medical advice for burns.

🫁 Inhalation: Move to fresh air; get medical attention if symptoms persist.

💡 These are general orientation points only. Follow the precise first-aid and emergency measures in the official SDS and consult emergency services / a physician as needed.

🚢 Transport & Regulatory

1,2-Diaminocyclohexane is commonly shipped under UN 2735 (amines/polyamines, liquid, corrosive). Always confirm the exact proper shipping name, packing group, and labeling on the current SDS and with your carrier, since classification can depend on concentration and isomer. Trans-specific material follows the same corrosive-amine handling principles as the mixed isomer. 🚢

📄 Need the Official SDS & COA?

Sinolook Chemical provides the current Safety Data Sheet and batch COA for 1,2-diaminocyclohexane (CAS 694-83-7), with compliant, export-ready corrosive packaging.

👉 Request DACH SDS & Product Specifications

❓ Frequently Asked Questions

🔹 Is 1,2-diaminocyclohexane dangerous?

Yes. It is classified as corrosive (signal word: Danger) - it can cause severe skin burns and eye damage, may cause skin sensitization, and is harmful if swallowed, inhaled, or in skin contact. Proper PPE and ventilation are essential.

🔹 Where can I get the DACH SDS / MSDS?

Request the current Safety Data Sheet directly from your supplier; it should be batch-relevant. Authoritative hazard data is also published on ECHA and PubChem.

🔹 What PPE is needed for handling 1,2-diaminocyclohexane?

Chemical-resistant gloves, safety goggles (and face shield if splashing is possible), impervious clothing, and adequate ventilation or respiratory protection, with eyewash and safety shower nearby.

🔹 What UN number is used to ship DACH?

It is commonly transported under UN 2735 as a corrosive amine, but confirm the exact classification, packing group, and labeling on the current SDS for your specific material.