Wuxi Volksky New Materials Co.,Ltd.
$501-99 Others
$35100-499 Others
$25≥500Others
| الدفع نوع: | L/C,D/A,T/T,MoneyGram,D/P,Paypal |
| إنكوترم: | FOB,CFR,EXW,CIF,FAS,FCA,CPT,CIP,DEQ,DDP,DDU,Express Delivery,DAF,DES |
| نقل: | Ocean,Land,Air,Express |
| ميناء: | Shanghai,Qingdao,Ningbo |
نموذج: VK-CHC-138
علامة تجارية: فولكسكي
مكان المنشأ: الصين
انواع من: وسيطة صبغ, توليف المواد الوسيطة
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
| بيع الوحدات | : | kilogram |
| مثال الصورة | : |
|
Bromocresol Green (BCG) CAS NO. 76-60-8 ، باعتبارها وصمة عار مهمة ، تم استخدامها على نطاق واسع في مجال التحليل. 1) CN201110395918.7 الكشف عن طريقة لاختبار محتوى الأمينات الحرة في NMP. يستخدم الاختراع طريقة معايرة القاعدة الحمضية لاختبار محتوى الأمينات في NMP من خلال إعداد BromoCrephenol Green-Methyl Red المعامل الكيميائي. 2) CN201811547295.9 لا يتناول ورقة اختبار مؤشر مختلطة لتحديد تركيز الأمونيا في الهواء وطريقة التحضير والكشف عنها ، والتي تنتمي إلى المجالات الفنية للمراقبة البيئية والنظافة الصناعية. 
| 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 |
|
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. |
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Contact Now