Product Details
| Product Name: p-Naphtholbenzein | CAS No.: 145-50-6 |
| Min. Order: 1kg | Purity: 99% |
| Supply Ability: g-kg-tons, free sample is available | Release date: 2026/07/01 |
| Lead time: In stock | Packaging: bottle/drum/bucket/IBC, as request. |
| Delivery: By sea, by air, by express | Origin: Manufacturer |
| Contact person: Jessica |
1. Product information
| Name | p-Naphtholbenzein |
|---|---|
| Synonym | More Synonyms |
| Description | α-Naphtholbenzein (p-Naphtolbenzein) is a dye. α-Naphtholbenzein can be used as a pH indicator. α-Naphtholbenzein has a visual transition from yellow (pH0-8.2) to turquoise (pH10). α-Naphtholbenzein is often used during sequential injection analysis technique done for acid-base titrations[1]. |
|---|---|
| Related Catalog | Research Areas >> Others Signaling Pathways >> Others >> Others |
| References | [1]. Maskula S, et al. Titration of strong and weak acids by sequential injection analysis technique. Talanta. 2000 May 31;52(1):91-9. |
| Density | 1.3±0.1 g/cm3 |
|---|---|
| Boiling Point | 578.6±50.0 °C at 760 mmHg |
| Melting Point | 230-235 °C(lit.) |
| Molecular Formula | C27H18O2 |
| Molecular Weight | 374.431 |
| Flash Point | 242.3±22.7 °C |
| Exact Mass | 374.130676 |
| PSA | 37.30000 |
| LogP | 7.11 |
| Vapour Pressure | 0.0±1.7 mmHg at 25°C |
| Index of Refraction | 1.724 |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Water Solubility | insoluble |
α-Naphtholbenzein MSDS(Chinese) |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
|---|---|
| Hazard Codes | Xi:Irritant; |
| Risk Phrases | R36/37/38 |
| Safety Phrases | S26-S36-S37/39 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| HS Code | 29145000 |
2. Packaging
For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.
For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
3. Shipping
4. Contact information
For more details, pls contact us freely.
Mob: 86 17630971917
WhatsApp/Skype/Wechat/LINE: 86 17630971917
Company Profile Introduction
Henan Fengda Chemical Co., Ltd. a research customization and supplier specializing in PPb grade ultra-high purity electronic chemicals, deeply rooted in the semiconductor and new display fields, committed to providing the most core and purest chemical components for photoresist and high-end display materials.
We provide key monomers for KrF/ArF photoresist, photoacid generators (PAGs), photoacids, and etching solution raw materials, providing cornerstone materials for advanced process photoresist formulations;
We take ICP-MS full spectrum metal impurity analysis as the quality cornerstone and provide ICP-MS metal impurity COA reports to meet the strict industry requirements for PPb grade electronic chemical materials. The COA report contains important data such as NA, Mg, K, Ca, Al, Cr, Fe, Ni, Cu, Zn, Pb, Ag, etc. To provide customers with pure and reliable source assurance for cutting-edge research and stable production.
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