Wuxi Volksky New Materials Co.,Ltd.
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| Tipo di pagamento: | L/C,D/A,T/T,MoneyGram,D/P,Paypal |
| Incoterm: | FOB,CFR,EXW,CIF,FAS,FCA,CPT,CIP,DEQ,DDP,DDU,Express Delivery,DAF,DES |
| Trasporti: | Ocean,Land,Air,Express |
| Porta: | Shanghai,Qingdao,Ningbo |
Modello: VK-CHC-138
marchio: Volksky
Luogo D'origine: Cina
Tipi Di: Intermedi coloranti, Materiali intermedi di sintesi
CAS No.: 76-60-8
Product Name: Bromocresol green
MF: C21H14Br4O5S
EINECS No.: 200-972-8
Melting Point: 225 °C (dec.) (lit.)
Density: 0.79 g/mL at 20 °C
Purity: 99%
Appearance: Yellow Powder
Flash Point: 12 °C
Storage: no restrictions
Solubility: Solubility Sparingly soluble in water
Boiling Point: 626.0±55.0 °C(Predicted)
MOQ: 1pcs
Sample: Availiable
PH Value: 3.8～5.4
Shelf Life: 2 Years
MW: 698.01
| Unità vendibili | : | kilogram |
| Esempio immagine | : |
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Bromocresol Green (BCG) CAS n. 76-60-8, come una macchia importante, è stato ampiamente utilizzato nel campo dell'analisi. 1) CN201110395918.7 Divulgare un metodo per testare il contenuto di ammine gratuite in NMP. L'invenzione utilizza il metodo di titolazione a base di acido per testare il contenuto di ammine in NMP preparando l'agente di bromocrofenolo verde-metile che indica l'agente del libro chimico. 2) CN201811547295.9 divulga un documento di prova di indicatore misto per la determinazione della concentrazione di ammoniaca in aria e un metodo di preparazione e rilevazione, che appartiene ai campi tecnici del monitoraggio ambientale e dell'igiene industriale. 
| tem | Specifications | Results |
| Assay (%) | ≥98.5 | 98.9 |
| PH Color change interval | 3.8 (yellow-green)-5.4 (blue) | Pass test |
| Maximum absorption wavelength (mm) | λ1 (PH3.8)440-445 | 442 |
| λ2 (PH5.4) 615-618 | 616 | |
| Mass absorption coefficient, L/(cm.g) | α1(λ1, PH3.8 dry sample) 24-28 | 25 |
| α2(λ1, PH5.4 dry sample) 53-58 | 55 | |
| Ethanol dissolved test | Pass test | Pass test |
| Loss on drying | ≤3.0 | 2.1 |
| Residue on ignition (as SO4)% | ≤0.25 | 0.25 |
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FAQ
1、When will my goods be shipped? -- About 3〜5 days after prepayment is paid. 2、Can I get a sample? -- Free samples are available, but buyers needs to pay freight. 3、How long does it take for me to get a sample? -- It depends. Generally speaking, it is about 7-10 days. 4、Why is the quote offered different from the sticker price? -- As we know, prices of chemicals are not fixed, they fluctuate with the markets. 5、Is the quality of your products guaranteed? -- We have a professional R&D team, so every batch of our products is up to standard.
WHY CHOOSE US1. With a seasoned R&D team, we are experienced in producing multiple chemicals over the past ten years. 2. Tailor-made packing can also be available according to your specific requirment. 3. Fast response. Every inquiry will be answered within 24 hours. 4. Prompt delivery. We have worked with many forwarding companies for years. 5. Good quality, we have a strict quality control system. |
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