November 23, 2024, 03:42:08 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Sodium tetraborate pentahydrate vs sodium tetraborate decahydrate  (Read 23429 times)

0 Members and 3 Guests are viewing this topic.

winter

  • Guest
Sodium tetraborate pentahydrate vs sodium tetraborate decahydrate
« on: April 02, 2004, 10:58:00 AM »
Hi, What is the difference between sodium tetraborate pentadrate and sodium tetraborate decahydrate? I am trying to make a product that I use frequently in my work - the formula is Na2B4O7-5H2o    I need to make it as exact as possible.  Thank you for any help that you can offer




Edit: Edited title for Indexing purposes. Mitch
« Last Edit: April 02, 2004, 05:08:00 PM by Mitch »
Logged

Offline Mitch

  • General Chemist
  • Administrator
  • Sr. Member
  • *
  • Posts: 5298
  • Mole Snacks: +376/-3
  • Gender: Male
  • "I bring you peace." -Mr. Burns
    • Chemistry Blog
Re:a formula
« Reply #1 on: April 02, 2004, 05:05:54 PM »
The difference is 5 water molecules. The decahydrate has 10 water molecules.

If its in a solution, you kinda have to expect you'll have an equilibrium mixture of the 2 substances. You could try using molecular sieves so you can push the synthesis towards the petahydrate. But, I would need to know more details of what exactly you are doing.
« Last Edit: April 02, 2004, 05:06:49 PM by Mitch »
Logged
Most Common Suggestions I Make on the Forums.
1. Start by writing a balanced chemical equation.
2. Don't confuse thermodynamic stability with chemical reactivity.
3. Forum Supports LaTex

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re:Sodium tetraborate pentahydrate vs sodium tetraborate decahydrate
« Reply #2 on: April 03, 2004, 06:35:40 AM »
Pentahydrate can be obtained during crystallization of borax (decahydrate) at 80 C.

Logged
AWK
Pages: [1]   Go Up
« previous next »
Sponsored Links