Products Description
Product Name: Naphthalene-2-sulfonic acid
CAS: 120-18-3
EINECS: 204-375-3
Melting point: 124 °C
Boiling point: 317.43°C (rough estimate)
Density: 1.44 g/cm
Vapor pressure: 2.33Pa at 20℃
Refractive index: 1.4998 (estimate)
Specification
| Items | Specifications |
| Appearance | Colorless and transparent liquid |
| Purity | 99% |
| Storage temp. | Inert atmosphere,Room Temperature |
| Package | 1 kg/bag, 20 kg/drum, 25 kg/drum |
Application
1. Naphthalene-2-sulfonic acid is primarily used as an intermediate in the synthesis of azo dyes, pigments, and fluorescent whitening agents.
2. Naphthalene-2-sulfonic acid CAS 120-18-3 serves as a dye carrier, leveling agent, and dispersant in textile dyeing and printing processes.
3. Naphthalene-2-sulfonic acid is employed in the production of concrete superplasticizers, tanning agents, and as a catalyst or additive in organic synthesis.
Storage and Precautions
1. Store Naphthalene-2-sulfonic acid in a tightly closed, corrosion-resistant container in a cool, dry, well-ventilated area away from incompatible materials.
2. Keep Naphthalene-2-sulfonic acid CAS 120-18-3 away from strong oxidizing agents, strong bases, and reactive metals to prevent hazardous reactions.
3. Handle Naphthalene-2-sulfonic acid with extreme care to avoid skin contact, eye exposure, and inhalation of dust or aerosols; it is highly corrosive.
Emergency response to leakage
1. Immediately isolate the spill area, ensure ventilation, and wear suitable protective equipment (respirator, gloves, goggles) before cleanup.
2. Neutralize spilled Naphthalene-2-sulfonic acid CAS 120-18-3 carefully with a dilute alkaline solution (e.g., sodium carbonate), then absorb with inert material. Collect the waste into a sealed, labeled hazardous waste container.
3. Prevent entry into drains, sewers, or waterways. Clean the contaminated area thoroughly with water. Dispose of waste as hazardous chemical waste according to strict regulations.
Safety Information
1. Naphthalene-2-sulfonic acid causes severe skin burns, eye damage, and respiratory tract irritation. It is harmful if swallowed or inhaled.
2. Naphthalene-2-sulfonic acid CAS 120-18-3 is toxic to aquatic life and may cause long-term adverse effects in the aquatic environment.
3. Wear full protective equipment (acid-resistant gloves, goggles, face shield, lab coat, respirator) and work in a fume hood. Consult the Safety Data Sheet before use.
Related Product Recommendations
| Items | Product Name |
| 1 | Sodium 4-Amino-1-Naphthalenesulfonate/4-Amino-1-Naphthalenesulfonic Acid Sodium Salt CAS 130-13-2 |
| 2 | Poly(Hexamethylenebiguanide)Hydrochloride / PHMB CAS 32289-58-0 |
| 3 | Diisobutyl Adipate/DIBA CAS 141-04-8 |
| 4 | Butyl 4-Aminobenzoate CAS 94-25-7 |
| 5 | Phenazine Methosulfate CAS 299-11-6 |
| 6 | Phenazine ethosulphate CAS 10510-77-7 |
| 7 | 3-Cyclohexylaminopropanesulfonic Acid / CAPS CAS 1135-40-6 |
| 8 | 3-(Cyclohexylamino)-2-Hydroxy-1-Propanesulfonic Acid / CAPSO CAS 73463-39-5 |
| 9 | CAPSO sodium salt CAS 102601-34-3 |
| 10 | If you want to need more information,welcome to contact us at any time.
WhatsApp: +86 18317156592
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Packaging




Transportation & Payment

About Transportation
Depending on the requirements of our clients, we can give a variety of transportation options.
For smaller orders, we offer air shipping or international courier services like FedEx, DHL, TNT, EMS, and numerous other unique lines of international transit.
We can transport by sea to a specified port for bigger amounts.
Additionally, we can offer unique services based on the requirements of our clients and the characteristics of their goods.

* We can offer a range of payment options to our clients.
* When the sum is modest, clients typically pay with PayPal, Western Union, Alibaba, and other similar services.
* When the sum is significant, clients typically pay with T/T, L/C at sight, Alibaba, and so on.
* Furthermore, an increasing number of consumers will use Alipay or WeChat Pay to make payments.
FAQ
1
May I get any sample from you?
Re: Yes, of course, we'd like to provide sample to you according to your demands.
2
What is your MOQ?
Re: Usually our MOQ is 1 kg, but sometimes it is also flexible and depends on different products.
3
How long I can get my goods after payment?
Re: If shipped by couriers or air, it usually cost 5-10 days.
If shipped by sea, it usually cost 3-40 days, which depends on your destination.
4
Do you have any after-sales service?
Re: Yes, we will inform you progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, technical guidance, etc.
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