Hardener
Price:Negotiable
Contact Info
- Add:昆山市千燈化工園佳泰路102號(hào), Zip:
- Contact: 龔建學(xué);姚國(guó)鋒
- Tel:0512-57035258;13806268702(基礎(chǔ)化學(xué)品);13906262877(醫(yī)藥中間體
- Email:sales@ksbxchem.com
Other Products
Description
Additional Information
DDM is also known as MDA
The polyamine DDM product is a mixture containing approximately 75% 4,4'-diaminodiphenylmethane and about 25% polyphenyl polymethylene polyamine. It is a light yellow solid at room temperature and is mainly used to prepare curing agents for epoxy resins. The structural formula of its main component is:
Physicochemical properties of DDM:
Appearance: Light yellow solid
MDA, %: 70-75
Polyphenyl polymethylene polyamine: 25-30
Packaging:
Lined film plastic woven bags, 20kg/bag; 220 kg/iron drum
Storage Precautions:
The storage warehouse should be dry, ventilated, and protected from light. It is strictly prohibited to expose to heat and prevent oxidation. During transportation, avoid breakage, leakage, exposure to sunlight, and rain.
Shelf Life:
Under specified storage conditions, the shelf life is 6 months. If the product exceeds the shelf life but still meets the technical specifications after inspection, it can still be used.
DDM Safety Precautions:
DDM has low toxicity in terms of respiratory inhalation and skin absorption. Its low volatility means that short-term exposure under normal conditions (e.g., minor leaks or spills) poses minimal harm. However, as DDM is an aromatic amine compound, it still has certain toxicity and can cause mild skin irritation and allergies. Handle with care to avoid direct skin contact and splashing into the eyes. Wear necessary protective equipment (gloves, goggles, work clothes, etc.). If it comes into contact with the skin or eyes, rinse immediately with water and wash the skin with soapy water.
The indicators and data provided in this document are for reference only. Specific guaranteed indicators are subject to the quality assurance certificate or contract provisions.
For detailed information, please contact the company's business department. We welcome inquiries by letter or phone. Kunshan Bingxi Fine Pharmaceutical Raw Material Factory Gong Jianxue 13806268702
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