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Catalog Number:
35367
CAS Number:
7789-09-5
Ammonium dichromate
Purity:
≥99.99% Metals basis
Synonym(s):
Ammonium bichromate
Hazmat
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Product Information

Ammonium dichromate is a versatile chemical compound widely recognized for its applications in various fields, including analytical chemistry, pyrotechnics, and as a catalyst in organic synthesis. This bright orange crystalline solid is known for its strong oxidizing properties, making it particularly useful in the preparation of chromic acid and in the synthesis of other chromium compounds. Researchers often utilize ammonium dichromate in qualitative analysis to detect the presence of certain metals, as it can form distinct colored complexes. Additionally, it serves as a key ingredient in the production of vibrant pigments and dyes, enhancing the aesthetic quality of materials in the textile and paint industries.

In pyrotechnics, ammonium dichromate is employed in the formulation of colored flames and smoke effects, adding visual appeal to fireworks displays. Its ability to decompose exothermically under heat makes it an essential component in thermite reactions, which are utilized in welding and metal cutting applications. With its unique properties and diverse applications, ammonium dichromate remains a valuable resource for researchers and industry professionals seeking reliable and effective solutions in their respective fields.

Synonyms
Ammonium bichromate
CAS Number
7789-09-5
Purity
≥99.99% Metals basis
Molecular Formula
NH42Cr2O7
Molecular Weight
252.07
PubChem ID
24600
Melting Point
185 ?C (dec.) (Approx.)
Density
2.115
Appearance
Orange to dark orange crystals.
Conditions
Store at RT
General Information
Synonyms
Ammonium bichromate
CAS Number
7789-09-5
Purity
≥99.99% Metals basis
Molecular Formula
NH42Cr2O7
Molecular Weight
252.07
PubChem ID
24600
Melting Point
185 ?C (dec.) (Approx.)
Density
2.115
Appearance
Orange to dark orange crystals.
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
Yes
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Ammonium dichromate is widely utilized in research focused on:

  • Analytical Chemistry: It serves as a reagent in various analytical procedures, particularly in the determination of organic compounds through oxidation reactions.
  • Pyrotechnics: This compound is used in the production of pyrotechnic devices, providing vibrant colors and effects in fireworks and flares.
  • Photography: It plays a role in traditional photography processes, especially in the creation of photographic emulsions and in the development of certain types of film.
  • Laboratory Demonstrations: Ammonium dichromate is often used in educational settings for dramatic chemical demonstrations, such as the "volcano" reaction, showcasing its properties in a visually engaging manner.
  • Environmental Science: It is utilized in studies related to chromium contamination and remediation, helping researchers understand and mitigate environmental impacts.

Citations