Wuxi Volksky New Materials Co.,Ltd.
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| Zahlungsart: | 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 |
| Transport: | Ocean,Land,Air,Express |
| Hafen: | Shanghai,Qingdao,Ningbo |
Schatten:
Modell: VK-CHC-138
Marke: Volksky
Herkunftsort: China
Arten Von: Farbstoffzwischenprodukte, Synthetisiert Materialzwischenprodukte
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
Lagerung: 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
| Verkaufseinheiten | : | kilogram |
| Bildbeispiel | : |
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Bromocresol Green (BCG) CAS -Nr. 76-60-8 als wichtiger Fleck wurde im Bereich der Analyse weit verbreitet. 1) CN201110395918.7 Offenlegen Sie eine Methode zum Testen des Inhalts freier Amine in NMP. Die Erfindung verwendet die Säure-Base-Titrationsmethode, um den Gehalt von Aminen in NMP zu testen, indem Bromocrephenol-Green-Methylrot vorbereitet wird, das Chemicalbook-Mittel anzeigt. 2) CN201811547295.9 offenbart ein gemischtes Indikator -Testpapier für die Bestimmung der Ammoniakkonzentration in Luft und eine Vorbereitung und Erkennungsmethode davon, die zu den technischen Bereichen der Umweltüberwachung und der industriellen Hygiene gehört. 
| 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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