Sodium polyacrylate
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| |
| Names | |
|---|---|
| IUPAC name
Poly(sodium prop-2-enoate)
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| Identifiers | |
| ECHA InfoCard | 100.118.171 |
| UNII |
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CompTox Dashboard (EPA)
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| Properties | |
| (C3H3NaO2)n | |
| Molar mass | Variable |
| Density | 1.22 g/cm3 |
| Hazards | |
| Safety data sheet (SDS) | MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium polyacrylate, also known as waterlock, is a sodium salt of polyacrylic acid with the chemical formula [−CH2−CH(CO2Na)−]n and broad application in consumer products.[1] This superabsorbent polymer has the ability to absorb as much as 100 to 1000 times its mass in water. Sodium polyacrylate is an anionic polyelectrolyte with negatively charged carboxylic groups in the main chain. While sodium neutralized polyacrylic acids are the most common form used in industry, there are also other salts available including potassium, lithium and ammonium.
The origins of superabsorbent polymer chemistry trace back to the early 1960s when the U.S. Department of Agriculture developed the first super absorbent polymer materials.[2]
Applications
Sodium polyacrylate and other derivatives of polyacrylic acid have a wide variety of commercial and industrial uses. These include:
- Health Care
- Industry
- Waste liquid control[9]
- Drilling fluid[5]
- Concrete protection[5]
- Environment
- Anti-flood Bag[10]
- Excreta collection[5]
Safety for human
Acrylic acid
As a leftover of producing sodium polyacrylate, acrylic acid would cause a rash when contacts with skin. It should be less than 300 PPM as the absorbent material in paper diaper.[14]
References
- ^ "Water absorbing material – Sodium polyacrylate".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ a b "History of Super Absorbent Polymer Chemistry". M2 Polymer Technologies, Inc. Retrieved 29 April 2009.
- ^ a b c "Superabsorbent polymer (SAP)". Howtor.
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Easy to Get Rid of Horse Manure / Urine Smell". Retrieved 2018-02-02.
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ a b c d e f g h i j k l m n "Sodium polyacrylate uses". Howtor.
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Chemical Name: Sodium Polyacrylate". Household Products Database. U.S. Department of Health and Human Services. August 2015. Retrieved August 29, 2016.
- ^ "What are the components of a typical disposable diaper?". Retrieved January 8, 2015.
- ^ "Sodium polyacrylate for diapers".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Best way for industrial waste liquid management: Sodium Polyacrylate".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Sodium polyacrylate – the absorbent material of Inflatable sandbags".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Sodium polyacrylate in waterproof tape of cables".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ Artificial Snow, M² Polymer Technologies, Inc., retrieved August 29, 2016
- ^ "Sodium Polyacrylate for Hot Cold Therapy Gel Pack".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "The Safety of sodium polyacrylate for human".
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help)