Sodium poly[(naphthaleneformaldehyde)sulfonate]

Sodium poly[(naphthaleneformaldehyde)sulfonate] Basic information
Product Name:Sodium poly[(naphthaleneformaldehyde)sulfonate]
Synonyms:atlox4862;barrasuper;bevaloid35;blancol;blancoldispersant;darvan1;darvanno.1;daxad11
CAS:9084-06-4
MF:(C11H7O4SNa)n
MW:0
EINECS:618-665-6
Product Categories:Polymers
Mol File:Mol File
Sodium poly[(naphthaleneformaldehyde)sulfonate] Structure
Sodium poly[(naphthaleneformaldehyde)sulfonate] Chemical Properties
PHpH (20g/l, 25℃) : 6.0~9.0
Hydrolytic Sensitivity0: forms stable aqueous solutions
EPA Substance Registry SystemNaphthalenesulfonic acid formaldehyde polymer sodium salt (9084-06-4)
Safety Information
Hazard Codes Xi;N,N,Xi
Risk Statements 36/38
Safety Statements 26-36
TSCA Yes
ToxicityLD50 oral in rat: 3800mg/kg
MSDS Information
Sodium poly[(naphthaleneformaldehyde)sulfonate] Usage And Synthesis
Chemical PropertiesSodium poly[(naphthaleneformaldehyde)sulfonate] is a brown powde,soluble in water, resistant to acid, alkali and hard water. Annd it has good diffusivity and excelllent resistant to high temperatures than NNO. Sodium poly[(naphthaleneformaldehyde)sulfonate] is commonly used as dispersant and filler of scattered dyes, reactive dyes, pesticides, leather tanning agent, also water reducing agent for construction and oil well.
UsesUsed as a diluent for pulp control in the paper industry, reducing duplexity, improving filler or fines retention, improving sizing, and reducing coating viscosity.
Used as a high-efficiency dispersant for water-based coatings and pigment pastes.
Used as an adhesive, improve water resistance of filler powder andsealing layers.
SynthesisThe solution of naphthalene(550kg)was heated at 50°C for 4h in the reaction kettle. Then cool down and pass water vapor to hydrolyze the by-product to give 1-naphthalenesulfonic acid. After the hydrolysis is completed, formaldehyde (37%) is added under 196kPa. Finally, alkali is added to neutralize to pH 8-10. The mixtrue was cooling and crystallization,and filtered out to give the product, Sodium poly[(naphthaleneformaldehyde)sulfonate] .
Sodium poly[(naphthaleneformaldehyde)sulfonate] Preparation Products And Raw materials
Raw materialsNaphthalene–>formaldehyde–>Methylnaphthalene–>1-Naphthalenesulfonic acid
Preparation ProductsDisperse Orange 29

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