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- Chemical Name: 2-Methylbutanoic acid
- CAS No.: 9003-01-4
- Molecular Fomula: ：C5H10O2
- Molecular weight：102.1317
- Appearance:white powder
- Sample：Available
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Description of Carbopol
- Poly(acrylic acid) (PAA or Carbomer) is generic name for synthetic high molecular weight polymers of acrylic acid. They may be homopolymers of acrylic acid, crosslinked with an allyl ether pentaerythritol, allyl ether of sucrose or allyl ether of propylene. In a water solution at neutral pH, PAA is an anionic polymer, i.e. many of the side chains of PAA will lose their protons and acquire a negative charge. This makes PAAs polyelectrolytes, with the ability to absorb and retain water and swell to many times their original volume. Dry PAAs are found in the market as white and fluffy powders. Carbomer codes (910, 934, 940, 941 and 934P) are an indication of molecular weight and the specific components of the polymer. For many applications PAAs are used in form of alkali metal or ammonium salts, e.g. sodium polyacrylate.
Basic Info of Carbopol
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | Polyacrylic acid |
| Synonyms | 2-Propenoic acid, homopolymer;PAA;poly(acrylic acid) macromolecule;Poly(acrylic acid);Propenoic acid polymer;Expand |
| CAS No. | 9003-01-4 |
| Molecular Formula | C3H4O2 |
| Molecular Weight | 72.06270 |
| PSA | 37.30000 |
| LogP | 0.25700 |
Numbering system
| EINECS number | 618-347-7 |
Properties
| Appearance & Physical State | Colorless viscous liquid. |
| Density | 1.09 (30% aq.) |
| Boiling Point | 116ºC |
| Melting Point | 106ºC |
| Flash Point | 61.6ºC |
| Refractive Index | n20/D 1.442 |
| Stability | Stable under normal temperatures and pressures. |
| Storage Condition | Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. |
Safety Info
| RTECS | AT4680000 |
| Safety Statements | S24/25 |
| HS Code | 3906909090 |
| WGK Germany | 3 |
| RIDADR | UN 3265 8/PG 3 |
| Risk Statements | R45; R46; R34; R36/37/38 |
| Hazard Codes | C; T; Xi |
| Signal Word | Danger |
| Hazard Declaration | H340; H350 |
| Symbol | GHS08 |
| Caution Statement | P201; P308 + P313 |
What is 2-Methylbutanoic acid?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 2-Methylbutanoic acid which has developed particularly rapidly in recent years. Do you know about 2-Methylbutanoic acid?
- The official answer：Because the structure of acrylic resin determines the performance, due to the application of conventional acrylic resin performance on specific occasions there are certain defects, and therefore modifying the structure has become the basic way to broaden the application of acrylic resin in recent years. Among them, epoxy modification has become one of the simplest and most direct methods, in the synthesis of epoxy-modified acrylic resin technology, currently more use of nuclear-shell hybrid structure, interpenetrating polymerization, microemulsion polymerization, etc., modified film resin with excellent kinetic properties, solvent resistance and acid, and alkali resistance.
What’s the application of 2-Methylbutanoic acid?
- In pharmaceutical preparations: acrylic resins are a widely used polymer in pharmaceutical preparations because they are safe, stable, inert, and non-irritating. Acrylic resins can be divided into two categories: methacrylic acid copolymers and methacrylate copolymers, which have various characteristics such as solubility in gastric and intestinal fluids or insolubility in water due to different copolymerization components and ratios. Therefore, they are commonly used in film coatings, solid dispersions, slow-release micro-pills, slow-release skeletal tablets, and other pharmaceutical applications. In addition, acrylic resin as a pharmaceutical excipient performance is more excellent, with a broad space for development. 2. coatings: acrylic resin light color, good transparency, excellent light, and color retention; high temperature does not decompose without discoloration, has good resistance to acid and alkali, salt, and grease detergents and other chemical staining and corrosion performance, as well as excellent construction performance. In particular, it can be extensively modified with various chemical monomers and new materials and endowed with various special properties to prepare new varieties of acrylic resin coatings.
Conclusion
Sincere to the customer and in good faith of quality is our forever followed motto. It’s the basement to be a human and do business. We take all responsibility for our products and service sincerely. We are a company integrating R&D, production, and sales. The design, research, and development of pharmaceutical intermediates including more than 330 kinds of pharmaceutical intermediates such as Anti-infectives, Cardiovascular and Cerebrovascular Systems, Digestive System, Santi-tumor, Nervous System, Geriatric Drugs, and Gynecological Drugs. At the same time, we have more than 4,000 factories in strategic cooperation with nearly 50,000 chemical products, so we can provide you with a one-stop purchasing service, which greatly saves customers’ procurement costs and time.
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