Name | Sodium salt of polynaphthalene sulphonic acid |
Synonyms | Diffusing agent NNO Dispersing Agent NNO Sodium polynaphthalene sulfonate Sodium methylenedinaphthalene disulphonate Sodium salt of polynaphthalene sulphonic acid disodium 5-[(7-sulfonatonaphthalen-1-yl)methyl]naphthalene-2-sulfonate |
CAS | 36290-04-7 |
InChI | InChI=1/C21H16O6S2.2Na/c22-28(23,24)18-9-10-20-15(4-2-6-17(20)12-18)11-16-5-1-3-14-7-8-19(13-21(14)16)29(25,26)27;;/h1-10,12-13H,11H2,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2 |
Molecular Formula | (C10H8O3S·CH2O)x·xNa |
Molar Mass | 472.442 |
PH | 7~9 |
Storage Condition | RT, dry |
Physical and Chemical Properties | Beige brown powder. It is easily soluble in water of any hardness and is anionic. Acid resistant, alkali resistant, heat resistant, hard water resistant, inorganic salt resistant. It has excellent diffusion and protective colloid properties, but no surface activity such as permeability and foaming. It has affinity for proteins and polyamide fibers, but has no affinity for fibers such as cotton and hemp. |
Use | This product is mainly used as a dispersant for disperse dyes, vat dyes, reactive dyes, and acidic dyes, with excellent grinding efficiency, solubilization, and dispersibility. It can be used as a dispersant in textile printing and dyeing, as well as for dyeing silk/wool interwoven fabrics, to ensure that there is no coloring on the silk. |
Reference Show more | 1. [IF=5.076] Bingna Huang et al."Preparation, Characterization, and Evaluation of Pyraclostrobin Nanocapsules by In Situ Polymerization."Nanomaterials-Basel. 2022 Jan;12(3):549 |
It is prepared by reacting naphthalene sulfonation and sulfonation products with formaldehyde and then neutralizing them.
It should be stored in a cool, dry, and ventilated warehouse, and should be lightly loaded and unloaded.