Product Description: Nitrazine yellow (Nitrazine paper; Phenaphthazine) is a pH indicator. The color of Nitrazine yellow changes from yellow to blue in the pH range from 6.0 to 7.0. Poly(acrylic acid) (MW 1250000) is a kind of biological materials or organic compounds that are widely used in life science research[1].
Formula: (C3H4O2)x
References: [1]Hawley WB, et, al. Enabling aqueous processing for LiNi0.80Co0.15Al0.05O2 (NCA)-based lithium-ion battery cathodes using polyacrylic acid. Electrochimica Acta. 2021 Jun 1;380: 138203.