Methylenebisacrylamide

CAS: 110-26-9

Overview

Methylenebisacrylamide (CAS 110-26-9 ), commonly abbreviated as MBA, is a bifunctional crosslinking monomer used to build three-dimensional polymer networks. It links polymer chains during free-radical polymerization.

This chemical controls gel structure, swelling behavior, and network density in the final material. In polyacrylamide gel production, MBA determines crosslink density, making it a critical input for electrophoresis gels.

These gels are used extensively in laboratory and diagnostic manufacturing. Personal care formulators incorporate it into superabsorbent hydrogel systems and crosslinked thickeners where controlled water retention is required.

Polymer manufacturers use MBA to produce ion-exchange resins and water treatment gels. In these applications, network tightness directly affects ion selectivity and capacity for industrial filtration systems.

It also functions as a crosslinker in contact lens materials and drug delivery matrices. Precise swelling ratios are a specification requirement for these high-performance medical and pharmaceutical applications.

MBA is supplied as a white crystalline powder. Technical and high-purity laboratory grades are the most commonly available, with purity levels typically at 99% or above for demanding polymerization.

Packaging ranges from small quantities for laboratory and specialty formulators to bulk bags for industrial polymer producers. This ensures flexibility for both research and large-scale manufacturing needs.

Physical Properties

Melting Point	180.5 °C
Boiling Point	277.52°C (rough estimate)
Density	1.235
Appearance	white crystalline powder
Color	White
Odor	Odorless
Form	powder
Water Solubility	0.01-0.1 g/100 mL at 18 ºC
Vapor Pressure	0-0.073Pa at 20-84.85℃
Refractive Index	1.4880 (estimate)
pH	>=5.0 (25g/l, H2O, 20℃)
Log P	-1.52--0.08 at 24-25℃ and pH4-10

Safety & Handling

Danger GHS08 GHS05 GHS06 GHS07 Hazard Statements H301 Toxic if swallowed H302 Harmful if swallowed H312 Harmful in contact with skin H317 May cause an allergic skin reaction H318 Causes serious eye damage H332 Harmful if inhaled 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 H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure 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. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. 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. P333+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P354+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	29241900
UN Number	2811
Storage Class	6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)	2

Other Names

Industries

Personal Care & Cosmetics Plastics & Polymers