Wuxi Volksky New Materials Co.,Ltd.
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| ポート: | Shanghai,Qingdao,Ningbo |
モデル: VK-CHC-138
ブランド: Volksky
原産地: 中国
の種類: 染料中間体, 合成材料中間体
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
| 販売単位 | : | kilogram |
| 写真の例 | : |
|
ブロモクレソールグリーン（BCG）CAS No。 76-60-8は、重要な染色として、分析の分野で広く使用されています。 1）CN201110395918.7 NMPの遊離アミンの含有量をテストする方法を開示します。本発明は、酸塩基滴定法を使用して、ブロモクレフェノールグリーンメチルレッドを調製する化学ブック剤を示すことにより、NMPのアミンの含有量をテストします。 2）CN201811547295.9は、環境監視と産業衛生の技術分野に属する、空気中のアンモニア濃度の測定とその調製および検出方法のための混合インジケーターテスト論文を開示しています。 
| 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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