Overview
N-Methylolacrylamide (CAS 924-42-5 ), commonly abbreviated as NMA, is a reactive acrylamide monomer used to introduce crosslinking functionality into polymer systems. It enables covalent bonding between polymer chains or between polymers and substrates.
This chemical improves durability and wash resistance in finished products across various industries. In textile finishing, NMA is incorporated into binder systems and crease-resist treatments where it crosslinks with cellulosic fibers.
This process delivers dimensional stability and wrinkle recovery to fabrics. Paper and nonwoven manufacturers use it to improve wet strength by anchoring polymer networks within the fiber matrix during the production process.
In emulsion polymerization, NMA acts as a reactive comonomer that builds in latent crosslink sites. These sites are activated during film formation or heat curing, which is a critical performance factor for pressure-sensitive adhesives.
The monomer is also essential for high-performance coatings and leather finishing formulations. These applications rely on NMA-modified binders to improve the adhesion and abrasion resistance of topcoats on various leather goods.
N-Methylolacrylamide is supplied as an aqueous solution, with 48% and 60% concentrations being the most commercially standard. Technical grade is the predominant specification across these diverse industrial applications.
Packaging typically ranges from drums to IBC totes, with bulk options available for high-volume polymer and textile chemical producers. Proper storage and handling are required to maintain the stability of the aqueous solution.
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Physical Properties
| Melting Point | 74.5 °C |
| Boiling Point | 277°C(lit.) |
| Density | 1.082 g/mL at 20 °C |
| Flash Point | 100°C |
| Color | White to Off-White |
| Form | Solid |
| Water Solubility | <0.1 g/100 mL at 20.5 ºC |
| Vapor Pressure | 31 hPa (25 °C) |
| Refractive Index | n 20/D 1.413 |
| pH | 6.0-7.0 (H2O, 20°C) |
| Log P | -1.81 at 20℃ and pH7 |
Safety & Handling
Danger GHS08 GHS06 GHS07 Hazard Statements H301 Toxic if swallowed H302 Harmful if swallowed H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H335 May cause respiratory irritation H340 May cause genetic defects H350 May cause cancer H351 Suspected of causing cancer H360 May damage fertility or the unborn child H361 Suspected of damaging fertility or the unborn child H371 May cause damage to organs H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H413 May cause long lasting harmful effects to aquatic life Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. 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. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P332+P317 Get emergency medical help. 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. P403+P233 Store in a well-ventilated place. Keep container tightly closed. 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 | 29241990 |
| Storage Class | 6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 924-42-5
- EC Number
- 213-103-2
- Mol. Weight
- 101.10
- HS Code
- 29241990
- Category
- Polymers & Resins