Wuxi Volksky New Materials Co.,Ltd.
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| 지불 유형: | L/C,D/A,T/T,MoneyGram,D/P,Paypal |
| 인 코텀: | FOB,CFR,EXW,CIF,FAS,FCA,CPT,CIP,DEQ,DDP,DDU,Express Delivery,DAF,DES |
| 수송: | Ocean,Land,Air,Express |
| 포트: | Shanghai,Qingdao,Ningbo |
그늘:
모형: VK-CHC-138
상표: 볼크 스키
원산지: 중국
유형: 염료 중간체, 합성 물질 중간체
CAS No.: 76-60-8
제품 이름: 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
저장: no restrictions
Solubility: Solubility Sparingly soluble in water
Boiling Point: 626.0±55.0 °C(Predicted)
모크: 1pcs
Sample: Availiable
PH Value: 3.8～5.4
Shelf Life: 2 Years
MW: 698.01
| 판매 단위 | : | kilogram |
| 사진 예 | : |
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Bromocresol Green (BCG) CAS NO. 중요한 얼룩으로서 76-60-8은 분석 분야에서 널리 사용되었습니다. 1) CN201110395918.7 NMP에서 자유 아민의 함량을 테스트하는 방법을 공개합니다. 본 발명은 산-염기 적정 방법을 사용하여 화학 책 제제를 나타내는 브로코 크레 페놀 녹색 메틸 레드를 제조함으로써 NMP에서 아민의 함량을 테스트한다. 2) CN201811547295.9 환경 모니터링 및 산업 위생의 기술 분야에 속하는 공기 및 준비 및 탐지 방법을 결정하기위한 혼합 지표 테스트 용지를 공개합니다. 
| 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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