Sodium poly[(naphthaleneformaldehyde)sulfonate]
Sodium poly[(naphthaleneformaldehyde)sulfonate]
CAS: 9084-06-4
Molecular Formula: (C11H7O4SNa)n
Sodium poly[(naphthaleneformaldehyde)sulfonate] - Names and Identifiers
| Name | Sodium poly[(naphthaleneformaldehyde)sulfonate] |
| Synonyms | daxad11 blancol darvan1 atlox4862 bevaloid35 barrasuper darvanno.1 blancoldispersant Diffusing agent (MF) Sodium poly[(naphthaleneformaldehyde)sulfonate] Sodium poly(naphthaleneformaldehyde) sulfonate disodium 5,5'-methanediyldinaphthalene-2-sulfonate Naphthalenesulfonic acid, polymer with formaldehyde, sodium saltDispersant MF Dispersant MF |
| CAS | 9084-06-4 |
| EINECS | 618-665-6 |
| InChI | InChI=1/C21H16O6S2.2Na/c22-28(23,24)18-7-9-20-14(3-1-5-16(20)12-18)11-15-4-2-6-17-13-19(29(25,26)27)8-10-21(15)17;;/h1-10,12-13H,11H2,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2 |
Sodium poly[(naphthaleneformaldehyde)sulfonate] - Physico-chemical Properties
| Molecular Formula | (C11H7O4SNa)n |
| Molar Mass | 472.442 |
| PH | pH (20g/l, 25℃) : 6.0～9.0 |
| Storage Condition | 2-8℃ |
| Sensitive | 0: forms stable aqueous solutions |
| Physical and Chemical Properties | This product is brown or dark brown powder. Soluble in water. Acid resistance, alkali resistance, hard water resistance. It has good diffusivity and is more resistant to high temperature than diffusing agent NNO. Prevent moisture absorption during storage. |
| Use | This product is used as a dispersant and leveling agent for disperse dyes, reactive dyes, and vat dyes. |
Sodium poly[(naphthaleneformaldehyde)sulfonate] - Risk and Safety
| Risk Codes | 36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| TSCA | Yes |
| Toxicity | LD50 oral in rat: 3800mg/kg |
Sodium poly[(naphthaleneformaldehyde)sulfonate] - Preparation method
Open Data Verified Data
The preparation process includes three major steps: sulfonation of methyl naphthalene, condensation of sulfonated products with formaldehyde, and neutralization. Put 500kg of methylnaphthalene into a sulfonation kettle, heat and melt, start stirring, and raise the temperature to 130-140 ℃ for reaction for 2 hours. Then add 210L of water under rapid stirring and stir for another half hour. Take a sample and measure the acidity. If the total acidity is 25%~27%, it is considered qualified. Cool to 90~100 ℃. Add 300kg of 37% formaldehyde aqueous solution at once. Natural temperature rise and pressure rise, control the reaction temperature between 130~140 ℃, and pressure between 0.15~0.20MPa. React for 2 hours and allow it to fully condense. After condensation, add 30% alkaline solution for neutralization until the pH value is around 7. Finally, cool and crystallize, filter, and dry the crystals to obtain the finished product.
Last Update：2024-01-02 23:10:35
Sodium poly[(naphthaleneformaldehyde)sulfonate] - safety
Open Data Verified Data
The oral LD50 of rats is 3800mg/kg, while the oral LD50 of mice is 3400mg/kg. When storing, it is necessary to prevent rain and moisture. If there are clumps, please mix them into a solution or crush them to use without affecting the effect.
Last Update：2023-10-17 08:18:08
Sodium poly[(naphthaleneformaldehyde)sulfonate] - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | the sodium salt of poly (naphthalene formaldehyde sulfonate) is a brown or dark brown powder. Commonly used in Disperse dyes, reactive dyes, pesticide diffusion agent, filler, leather tanning agent, building cement concrete water reducing agent, used as oil well cement water reducing agent. This product is used as dispersing agent and levelling agent for disperse dyes, reactive dyes and vat dyes. Pesticide dispersant, water-reducing agent for cement concrete. used as pesticide diffusing agent, filler, dye dispersant, leather tanning agent, building water reducing agent used as oil well cement water reducing agent. This product is a diluent for Pulp Pulp control in the paper industry, reducing the two sides, improving the retention rate of fillers or fine fibers, improving sizing and reducing the viscosity of the coating. It is used as a high efficient dispersant for water-based coatings and pigment pastes. It is used as a color paste dispersant in acrylic acid series, aldehyde C Series, chlorine partial series latex paint. It can also be used as an adhesive, filler powder of a polymer and in a sealing layer to improve water resistance. |
| production method | preparation process of this product: sulfonation of acenaphthalene, condensation of sulfonated product with formaldehyde, neutralization and three steps. 550kg of refined naphthalene was put into the reaction vessel, and the temperature was raised to 50 ° C. For 4H. Then, the temperature is lowered and water vapor is passed through, and the by-product of hydrolysis is obtained as 1-Naphthalene sulfonic acid. After completion of the hydrolysis, the material was driven into a polycondensation kettle, and 37% aqueous formaldehyde solution was added to react at a pressure of 196 kPa. Finally, neutralization to pH 8-10 was carried out by addition of alkali. The reaction was completed. Cooling crystallization, filtering out the crude product after drying for the finished product. The preparation process includes three steps: sulfonation of methyl naphthalene, condensation and neutralization of sulfonated product with formaldehyde. 130 of methylnaphthalene was put into a sulfonation kettle, heated and melted, stirred, and heated to 140-° C. For reaction 2. Then, 210L of water was added under rapid stirring, and the acidity was measured by sampling after stirring for half an hour. If the total acidity was 25%-27%, it was qualified. Cool to 90-100 °c. A 37% solution of formaldehyde in water was added in one portion. The reaction temperature is controlled at 130~140 ℃ and the pressure is 0.15~0.20MPa. Reaction 2H allowed for full condensation. After completion of the condensation, 30% alkali solution was added and neutralized to a pH of about 7. Finally, the crystals are cooled, filtered, and the crystals are dried. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 3800 mg/kg; Oral-mouse LD50: 3400 mg/kg |
| flammability hazard characteristics | toxic sulfur oxide and nitrogen oxide gases emitted by thermal decomposition |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| extinguishing agent | water, dry powder, dry sand, carbon dioxide, foam, 1211 extinguishing agent |
Last Update：2024-04-09 21:54:55
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Product Name: Sodium poly[(naphthaleneformaldehyde)sulfonate] Request for quotationCAS: 9084-06-4
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
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Product Name: Sodium poly[(naphthaleneformaldehyde)sulfonate] Request for quotationCAS: 9084-06-4
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Spot supply
Product Name: Sodium poly[(naphthaleneformaldehyde)sulfonate] Visit Supplier Webpage Request for quotationCAS: 9084-06-4
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
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