Factsheet

• Word Type: Noun
• Field: Chemistry
• Pronunciation:
  • British English: /ˌæmɪˈdjuːlɪn/
  • U.S. English: /ˌæmɪˈduːlɪn/
  • Rhyming Words: mandolin, insulin, disciplin
• First Known Use: 1848

Etymology

The term amidulin is derived from the German word Amidulin, itself rooted in amido- (related to amide groups) and ulin, a suffix commonly used in chemistry to denote a substance. The word reflects its role as a chemical derivative of starch.

Meaning & Use

Definition

1. A Soluble Form of Starch:
   Amidulin is a form of starch created by partial hydrolysis, typically using acid. It serves as an intermediate compound between true starch and other derivatives like dextrin or inulin.
   • Example: “Amidulin plays a role in various chemical and industrial processes due to its solubility and reactive properties.”

Chemical Characteristics

• Formation: Produced when starch undergoes controlled hydrolysis.
• Properties: Soluble in water and reacts with iodine, often coloring blue.

Quotations in Context

1. 1848:
   “Notice respecting Amiduline… I have applied the above name to a modification of starch which forms the transition between true starch and inuline or dextrine.”
   — Translation of F. Schulze, Chemical Gazette
2. 1917:
   “Hale found that ordinary starch contains as impurities, erythrodextrin, coloring red with iodine, and amidulin, coloring blue.”
   — Journal of Industrial & Engineering Chemistry
3. 2018:
   “Sodium sulfide (4 g), amidulin (3.5 g), sucrose (2 g), sodium tetraborate (0.5 g), and glycerin (2.5 g) were carefully weighed and dissolved in 50 mL of water.”
   — Molecular Pharmaceutics

Pronunciation

• Phonetic:
  • British: /ˌæmɪˈdjuːlɪn/
  • American: /ˌæmɪˈduːlɪn/
• Rhyming Words: mandolin, insulin, disciplin

The stress falls on the second syllable (-du- or -dju-), and the word ends with a soft -lin.

Examples in Everyday Use

1. Scientific Research:
   • “The team used amidulin as a reactive agent in their polymer experiments.”
2. Industrial Chemistry:
   • “Amidulin’s solubility makes it a key component in adhesives and coatings.”
3. Biochemical Studies:
   • “The study analyzed the effects of iodine on amidulin and other starch derivatives.”

Synonyms

• Soluble starch derivative
• Hydrolyzed starch
• Starch intermediate

Applications and Importance

1. Chemical Research:
   Amidulin is studied in the context of starch derivatives and their transformations, particularly in processes involving hydrolysis.
2. Industrial Uses:
   Its properties make it suitable for use in adhesives, coatings, and as a precursor in manufacturing other compounds.
3. Pharmaceuticals:
   Amidulin can appear in formulations where modified starch derivatives are required for binding or reactivity.

Conclusion

Amidulin is a specialized term in chemistry, representing a soluble starch derivative formed by partial hydrolysis. With its roots in 19th-century scientific research, it continues to be relevant in industrial applications and biochemical studies. Its versatility and reactivity highlight its significance in advancing our understanding and utilization of starch-based compounds.