2-Acrylamide-2-methylpropanesulfonic acid

Synonym(s):2-Acrylamido-2-methylpropanesulfonic acid

CAS NO.：15214-89-8
Empirical Formula: C7H13NO4S
Molecular Weight: 207.25
MDL number: MFCD00007522
EINECS: 239-268-0
SAFETY DATA SHEET (SDS)
Update Date: 2025-09-16 17:17:29

2-Acrylamide-2-methylpropanesulfonic acid Structural

What is 2-Acrylamide-2-methylpropanesulfonic acid?

Chemical properties

2-Acrylamide-2-methylpropanesulfonic acid is a white crystals. The melting point is 195°C (decomposition). Soluble in water, the solution is acidic. Soluble in dimethylformamide, partially soluble in methanol, ethanol, insoluble in acetone. Slightly sour.

The Uses of 2-Acrylamide-2-methylpropanesulfonic acid

2-Acrylamide-2-methylpropanesulfonic acid has good complexion, adsorption, biological activity, surface activity, hydrolysis stability and thermal stability. It can be used in oil chemical, water treatment, synthetic fiber, printing and dyeing, plastics, water absorbing coatings, paper, bio-medical, magnetic materials and cosmetics industries.

Preparation

2-Acrylamido-2-methylpropanesulfonic acid(AMPS) can be synthesized by one step and two steps. The one-step method is to react the raw materials acrylonitrile, isobutylene and oleum together. The two-step method is to sulfonate isobutylene in the presence of a reaction solvent to obtain a sulfonated intermediate, and then react with acrylonitrile in the presence of sulfuric acid. One-step method is more economical. Raw material consumption quota: isobutylene 300kg/t, acrylonitrile 290kg/t, oleum 560kg/t.

What are the applications of Application

2-Acrylamide-2-methylpropanesulfonic acid is an important monomer. Its copolymers or homopolymers with different molecular weight can be widely used in textile, oil drilling, water treatment, papermaking, dying, coating, cosmetics, electronics, etc. because of its unique formular structure—containing sulfonic acid group and unsaturated radical, thus showing excellent properties in many aspects.

Definition

ChEBI: 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid is an organosulfonic acid.

Properties of 2-Acrylamide-2-methylpropanesulfonic acid

Melting point:	195 °C (dec.) (lit.)
Density	1.45
vapor pressure	<0.0000004 hPa (25 °C)
refractive index	1.6370 (estimate)
Flash point:	160 °C
storage temp.	Store below +30°C.
solubility	>500g/l soluble
form	solution
pka	1.67±0.50(Predicted)
color	White
Water Solubility	1500 g/L (20 ºC)
Sensitive	Hygroscopic
BRN	1946464
Stability:	Light Sensitive
CAS DataBase Reference	15214-89-8(CAS DataBase Reference)
EPA Substance Registry System	1-Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propenyl)amino]- (15214-89-8)

Safety information for 2-Acrylamide-2-methylpropanesulfonic acid

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.