Turn on thread page Beta
    • Thread Starter
    Offline

    12
    ReputationRep:
    Why is sodium not suitable for the use of sacrificial protection even though it is more reactive than iron?

    Explain the suitability of sodium for the sacrificial protection of an offshore oil rig...

    Edit: two separate questions
    Posted on the TSR App. Download from Apple or Google Play
    • Political Ambassador
    Online

    16
    ReputationRep:
    Political Ambassador
    (Original post by Purplebottle)
    Why is sodium not suitable for the use of sacrificial protection even though it is more reactive than iron?

    Explain the suitability of sodium for the sacrificial protection of an offshore oil rig...
    Think about the circumstances... what would sodium be in contact with and therefore react with? what are the products of the reaction? link to oil rig.
    • Thread Starter
    Offline

    12
    ReputationRep:
    (Original post by ns_2)
    Think about the circumstances... what would sodium be in contact with and therefore react with? what are the products of the reaction? link to oil rig.
    I have no idea haha, im really bad at chemistry
    Posted on the TSR App. Download from Apple or Google Play
    • Political Ambassador
    Online

    16
    ReputationRep:
    Political Ambassador
    (Original post by Purplebottle)
    I have no idea haha, im really bad at chemistry
    Sodium + water --> ??
    • Thread Starter
    Offline

    12
    ReputationRep:
    (Original post by ns_2)
    Sodium + water --> ??
    Sodium hydroxide?
    Posted on the TSR App. Download from Apple or Google Play
    • Political Ambassador
    Online

    16
    ReputationRep:
    Political Ambassador
    (Original post by Purplebottle)
    Sodium hydroxide?
    And hydrogen.

    However, what is special about this reaction? i.e. is it exothermic or endothermic? is it fast or slow? violent or calm?
    • Thread Starter
    Offline

    12
    ReputationRep:
    (Original post by ns_2)
    And hydrogen.

    However, what is special about this reaction? i.e. is it exothermic or endothermic? is it fast or slow? violent or calm?
    Im doing gcse what is exothermic and stuff haha
    Posted on the TSR App. Download from Apple or Google Play
    Offline

    14
    ReputationRep:
    (Original post by Purplebottle)
    Why is sodium not suitable for the use of sacrificial protection even though it is more reactive than iron?

    Explain the suitability of sodium for the sacrificial protection of an offshore oil rig...

    Edit: two separate questions
    Sodium is very reactive, and readily reacts with oxygen, and explosively with water, so wouldn't be suitable for sacrificial protection.

    To protect iron, you would galvanise it by coating in zinc.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: March 11, 2018

1,951

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should predicted grades be removed from the uni application process

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.