Wuxi Volksky New Materials Co.,Ltd.
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| Вид оплаты: | L/C,D/A,T/T,MoneyGram,D/P,Paypal |
| Инкотермс: | FOB,CFR,EXW,CIF,FAS,FCA,CPT,CIP,DEQ,DDP,DDU,Express Delivery,DAF,DES |
| транспорт: | Ocean,Land,Air,Express |
| Порт: | Shanghai,Qingdao,Ningbo |
Модель: VK-CHC-138
марка: Вольксский
место происхождения: Китай
Виды: Промежуточные красители, Промежуточные продукты синтетических материалов
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
| Продажа единиц жилья | : | kilogram |
| Пример с картинкой | : |
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Бромоктир зеленый (BCG) CAS №. 76-60-8, как важное пятно, широко использовалось в области анализа. 1) CN201110395918.7 Раскрывает метод для тестирования содержания бесплатных аминов в NMP. В изобретении используется метод титрования кислой основной, чтобы проверить содержание аминов в NMP путем подготовки бромкрофенола зелено-метилового красно-красного, указывающего на химический агент. 2) CN201811547295.9 Раскрывает тестовую бумагу смешанного индикатора для определения концентрации аммиака в воздухе и метода подготовки и обнаружения, который относится к техническим областям мониторинга окружающей среды и гигиены промышленности. 
| 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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