폴리아크릴산소다

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H319：눈에 심한 자극을 일으킴

• 예방조치문구

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

  P337+P313：눈에 대한 자극이 지속되면 의학적인 조치· 조언를 구하시오.

폴리아크릴산소다 MSDS

• PAAS

폴리아크릴산소다 화학적 특성, 용도, 생산

• 개요

  Sodium polyacrylate, also known as waterlock, is a sodium salt of poly acrylic acid with the chemical formula [-CH₂-CH(COONa)-]_n and broad application in consumer products. It has the ability to absorb as much as 200 to 300 times its mass in water. Sodium polyacrylate is anionic polyelectrolytes with negatively charged carboxylic groups in the main chain. While sodium neutralized poly acrylic acids are the most common form used in industry, there are also other salts available including potassium, lithium and ammonium.

• 화학적 성질

  faintly grey crystalline solid

• 용도

  sodium polyacrylate is a suspending agent, stabilizer, and emulsifier.

• 주요 응용

  Sodium poly acrylate and other derivatives of polyacrylic acid have a wide variety of commercial and industrial uses that include:
  Sequestering agents in detergents. ( By binding hard water elements such as calcium and magnesium, the surfactants in detergents work more efficiently.).

• 정의

  ChEBI: An organic sodium salt which is a macromolecule composed of repeating sodium acrylate units.

• 일반 설명

  Poly(acrylic acid sodium salt) is a hydrophilic polymer, which can find wide applications in the production of consumer productslike diapers, because of its ability to absorb many more times its mass in water.

• Safety Profile

  An eye irritant. When heated to decomposition it emits toxic fumes of Na2O.

• Purification Methods

  Commercial polyacrylamide is first neutralised with an aqueous solution of NaOH, and the polymer is precipitated with acetone. The precipitate is redissolved in a small amount of water and freeze-dried. The polymer is then repeatedly washed with EtOH and water to remove traces of low-molecular-weight material, and finally dried in vacuum at 60o [Vink J Chem Soc, Faraday Trans 1 75 1207 1979]. It has also been dialysed overnight against distilled water, then freeze-dried. Sodium poly( -L-glutamate). Wash it with acetone, dry it in a vacuum, dissolve it in water and precipitate it with isopropanol at 5o. Impurities and low-molecular-weight fractions are removed by dialysis of the aqueous solution for 50hours, followed by ultrafiltration

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