Wuxi Volksky New Materials Co.,Ltd.
$501-99 Others
$35100-499 Others
$25≥500Others
| Betalning Typ: | 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 |
| Transportfordon: | Ocean,Land,Air,Express |
| Hamn: | Shanghai,Qingdao,Ningbo |
Modell nr: VK-CHC-138
Märke: Volksky
Härstamning: Kina
Typer Av: Dyestuff Intermediates, Syntetiska material Mellanprodukter
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
| Sælgende enheder | : | kilogram |
| Billedeksempel | : |
|
Bromocresol Green (BCG) Cas nr. 76-60-8, som en viktig fläck, har använts i stor utsträckning inom analysområdet. 1) CN201110395918.7 avslöjar en metod för att testa innehållet i fria aminer i NMP. Uppfinningen använder syra-bas-titreringsmetod för att testa innehållet i aminer i NMP genom att framställa bromokrephenolgrön metylröd som indikerar kemisk bokmedel. 2) CN201811547295.9 Discloes Ett blandat indikatortestpapper för bestämning av ammoniakkoncentration i luft och en berednings- och detekteringsmetod därav, som tillhör de tekniska områdena för miljöövervakning och industriell hygien. 
| 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