How to prepare 40 ppb chloride solution from Sodium chloride

Chemistry and homework help forum.

Organic Chemistry, Analytical Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Theoretical Chemistry, High School Chemistry, Colledge Chemistry and University Chemistry Forum.

Share your chemistry ideas, discuss chemical problems, ask for help with scientific chemistry questions, inspire others by your chemistry vision!

Please feel free to start a scientific chemistry discussion here!

Discuss chemistry homework problems with experts!

Ask for help with chemical questions and help others with your chemistry knowledge!

Moderators: expert, ChenBeier, Xen

Post Reply
kamran_chemist
Newbie
Newbie
Posts: 2
Joined: Tue Apr 06, 2021 1:11 am

How to prepare 40 ppb chloride solution from Sodium chloride

Post by kamran_chemist »

I want to prepare 40 ppb chloride solution from solid sodium chloride. from where to start and how many dilutions I have to make to get 40ppb chloride.

I have lab grade dried NaCl salt and demineralized water
User avatar
ChenBeier
Distinguished Member
Distinguished Member
Posts: 798
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

Re: How to prepare 40 ppb chloride solution from Sodium chloride

Post by ChenBeier »

1 ppb = 1 part per billion. = 1 μg per kg ~ 1 μg per Liter
40 ppb Cl- = 66 ppb NaCl = 66 × 10^-6 g / Liter

Dissolve 6,6 g NaCl in 100 ml, Take 1 ml and add it again in 1 l water. The Concentration is now 66 mg/l. Take again 1 ml and add it in 1 l gives the final result of 66 μg/ l.

If you have smaller Pipette. Let say 100 μl or 250 μl then you can do 0,1 ml in 100 ml or 0,25 ml in 250 ml
Post Reply