Overview
Adipic dihydrazide (CAS 1071-93-8 ), commonly abbreviated as ADH, is a bifunctional hydrazide used as a crosslinker and curing agent across coatings, adhesives, and polymer systems.
It reacts with carbonyl-functional resins at ambient or low temperatures, enabling formulations to cure without elevated heat. In waterborne coatings, ADH crosslinks ketone-functional acrylic dispersions.
This process improves hardness, water resistance, and film durability in architectural and industrial finishes. Adhesive and sealant formulators use it to build cohesive strength in emulsion-based systems.
It is particularly effective where thermal curing is impractical. In polymer chemistry, ADH acts as a chain extender and building block for polyurethanes, polyamides, and hydrogel networks.
These applications require controlled crosslink density for optimal performance. Personal care applications include its use as a stabilizer in formulations where carbonyl-reactive chemistry helps protect ingredients.
This specific chemistry helps protect active ingredients from degradation over time. Adipic dihydrazide is supplied as a white crystalline powder available in technical and high-purity grades.
Specifications are typically defined by assay content, moisture levels, and melting point range. Packaging ranges from kilogram-scale bags to bulk quantities suitable for industrial procurement.
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Physical Properties
| Melting Point | 180-181 °C |
| Boiling Point | 305.18°C (rough estimate) |
| Density | 1.2297 (rough estimate) |
| Flash Point | 150 °C |
| Appearance | white to slightly yellow crystalline powder |
| Color | White to slightly yellow |
| Form | Crystalline Powder |
| Water Solubility | soluble |
| Vapor Pressure | 0Pa at 25℃ |
| Refractive Index | 1.6700 (estimate) |
| Log P | -2.7 at 20℃ |
Safety & Handling
Warning GHS07 GHS09 GHS08 Hazard Statements H317 May cause an allergic skin reaction H320 Causes eye irritation H361 Suspected of damaging fertility or the unborn child H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H411 Toxic to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P318 IF exposed or concerned, get medical advice. P321 Specific treatment (see … on this label). P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29280090 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 1071-93-8
- EC Number
- 213-999-5
- Mol. Weight
- 174.20
- HS Code
- 29280090
- Category
- Flavors & Fragrances