![4- 브로 모 -3- 아이오도 -1H- 피롤로 [2,3-B] 피리딘 CAS 1000340-34-0](http://bsg-i.nbxc.com/product/49/91/03/a6ac194aebe18f3c49fd572310.jpg@4e_360w_360h.src)
Contact Now
Please Leave Us A Message
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.
제품 리스트
모형: TF-2010
상표: Tianfu
포장: 구매자의 요청으로
생산력: 100Ton
수송: Ocean,Land,Air,DHL，TNT
원산지: 중국
지원에 대한 지원: 50Ton
인증 : ISO
포트: Shanghai port,Qingdao port
지불 유형: L/C,T/T,D/P,Paypal,Money Gram,Western Union
인 코텀: FOB,CFR,CIF,EXW,FCA,CPT,CIP
페놀프탈레인은 화학식 C20H14O4의 화학 화합물로, 종종 "HIn"또는 "phph"로 약자 표기법으로 작성됩니다. 종종 적정에 사용되며 산성 용액에서는 무색으로 변하고 기본 용액에서는 분홍색으로 변합니다. 지시약 농도가 특히 강한 경우 자주색으로 보일 수 있습니다. 강 염기성 용액에서, 페놀프탈레인의 핑크색은 다소 느린 퇴색 반응을 겪고 다시 무색이됩니다.
|
Items |
Standards |
Results |
|
Characteristics |
A white or almost white powder ,practically insoluble in water ,soluble in alcohol |
Conform |
|
Melting temperature |
≥260℃ |
260.5℃~262.6℃ |
|
Identification |
A Positive B Positive |
A Positive B Positive |
|
Appearance of solution |
The solution is clear and not more intensely coloured than reference solution Y7 |
Complies |
|
Related substances |
Less than 0.5% |
< 0.5% |
|
Heavy metals |
≤10ppm |
<10ppm |
|
Arsenic |
≤8ppm |
<8ppm |
|
Acidity or Alkalinity |
Complies |
Complies |
|
Chlorides |
≤100ppm |
<100ppm |
|
Sulphates |
≤200ppm |
<200ppm |
|
Organic volatile impurities |
pass |
pass |
|
Chromatographic impurities |
≤1.0% |
<1.0% |
|
Fluoran |
To pass test |
Complies |
|
Loss on drying |
≤0.50% |
0.10% |
|
Sulphated ash (Residue on ignition) |
≤0.10% |
0.02% |
|
Assay |
98.0%~101.0% (C20H14O4) |
99.8% |
|
Remark |
Storage condition: Well closed container, store protected from light |
|
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.