How to Dramatically Demonstrate a Decomposition Reaction

Introduction: How to Dramatically Demonstrate a Decomposition Reaction

This chemical volcano is a result of the decomposition of Ammonium Dichromate.

A decomposition reaction (aka analysis reaction) follows the general formula below

A--> B + C

A compound breaks down into smaller components.

This is the demonstration of the decomposition of Ammonium Dichromate

(NH4)2Cr2O7 ---> N2 + 4H2O + Cr2O3

Cr2O3 -the green solid

Notes

Chromium III and chromium VI, as well at its compounds, including ammonium dichromate, are known carcinogens. Chromium will irritate the mucous membranes. Therefore, take care to perform this demonstration in a well-ventilated area (preferably a ventilation hood) and avoid skin contact or inhalation of the materials. Wear gloves and safety goggles when handling ammonium dichromate.

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    15 Discussions

    0
    antienoob
    antienoob

    10 years ago on Introduction

    were could i find the materials needed for this. cose i so wont to try this at home.

    0
    pwest71
    pwest71

    10 years ago on Introduction

    Any way to make a similar effect, but safe for in a home? Looking to make a "faux" volcano/waterfall.....

    0
    duckman1970
    duckman1970

    11 years ago on Introduction

    yah it worked whoooo BANG! ahhh ahhhhh ahhhhhhh sick volcano man

    0
    szechuan53
    szechuan53

    11 years ago on Introduction

    very nice I also needed a shovel (I just used a little beach shovel though)

    0
    The Fallen
    The Fallen

    11 years ago on Introduction

    this is a decomposition reaction, where is all the energy coming from? breaking bonds requires energy, correct?

    0
    chibiturtleboi
    chibiturtleboi

    Reply 11 years ago on Introduction

    Well, he kinda heated it up with a torch.. =/ If that's not energy, then I don't know what is.

    0
    tubajoey1
    tubajoey1

    11 years ago on Introduction

    where might i get the materials for this? like, somewhere i could go locally, not the internet. thanks!

    0
    GorillazMiko
    GorillazMiko

    12 years ago on Introduction

    Looks awesomely awesome to the most awesomeness of awesome, keep up the great videos!