Wuxi Volksky New Materials Co.,Ltd.
$501-99 Others
$35100-499 Others
$25≥500Others
| Payment Type: | 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 |
| Transportation: | Ocean,Land,Air,Express |
| Port: | Shanghai,Qingdao,Ningbo |
Model No.: VK-CHC-138
Brand: Volksky
Place Of Origin: China
Types Of: Dyestuff Intermediates, Syntheses Material Intermediates
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
| Selling Units | : | kilogram |
| Picture Example | : |
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Bromocresol green (BCG) Cas NO. 76-60-8, as an important stain, has been widely used in the field of analysis. 1) CN201110395918.7 disclose a method for testing the content of free amines in NMP. The invention uses acid-base titration method to test the content of amines in NMP by preparing bromocrephenol green-methyl red indicating Chemicalbook agent. 2) CN201811547295.9 discloes a mixed indicator test paper for the determination of ammonia concentration in air and a preparation and detection method thereof, which belongs to the technical fields of environmental monitoring and industrial hygiene.
| 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. |
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