LabChem LC242701 Sodium Hydroxide Solution Review

I've seen other reviews complaining that it's mostly water. This is a 0.1M solution and the pH for NaOH should be around 13 on the pH scale at this concentration. I tested it with my pH probe upon receipt and it was around 12.90.

Appears to be outdated. I use it for acid titration in my home cheese making process and the soda is quite old causing the titration reading to be skewed. I will order more but not from this source. Sodium hydroxide is not all that complicated. I am extremely disappointed.

I bought 0.1 M NaOH for pH adjustment. 1) However, the pH of this product was 2.5! My pH meter worked correctly as it was calibrated at pH 4.01, 6.86 and pH 9.18. I also tested the PBS buffer and this buffer showed a pH of 7.34 on my pH meter. Please check your product. Tomorrow I will post information about the lot here. 2) The black cover was fragile. I was just trying to make sure it was sealed properly and then it ripped.