成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

PHENOLPHTHALIN

PHENOLPHTHALIN ??? ???
?? ??:
81-90-3
???:
PHENOLPHTHALIN
???(??):
PHENOLTHALEIN;PHENOLPHTHALIN;PHENOLPHTHALIN,98%;Phenolphthalin [for redox indicator];LABOTEST-BB LT00772253;Phenolphthaleinreduced;Phenolphthalin, pure, 98%;PHENOLPHTHALIN, 98%, PURE;Phenolphthalin [for redox indicator]
CBNumber:
CB4140281
???:
C20H16O4
??? ??:
320.34
MOL ??:
81-90-3.mol

PHENOLPHTHALIN ??

???
238 °C
?? ?
419.24°C (rough estimate)
??
1.1863 (rough estimate)
???
1.5400 (estimate)
?? ??
Sealed in dry,Room Temperature
???
almost transparency in EtOH95vol%
??? ??
powder to crystaline
?? ?? (pKa)
3.96±0.36(Predicted)
??
???? ?? ??
???
175mg/L(20℃)
Merck
14,7244
EPA
Benzoic acid, 2-[bis(4-hydroxyphenyl)methyl]- (81-90-3)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
????? 24/25
WGK ?? 3
HS ?? 2916.39.7900
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ?? GHS hazard pictograms
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P302+P352 ??? ??? ??? ?? ????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.

PHENOLPHTHALIN C??? ??, ??, ??

??? ??

white glistening fine crystalline powder

??

Phenolphthalin is used in preparation method of polar polymer doped nanoparticles and composite wave absorbing material containing same.Dyes and metabolite

PHENOLPHTHALIN ?? ?? ? ???

???

?? ??


PHENOLPHTHALIN ?? ??

???( 72)?? ??
??? ?? ??? ?? ?? ? ??
Zhengzhou Alfa Chemical Co.,Ltd
+8618530059196
sale04@alfachem.cn China 13515 58
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739
info@dycnchem.com China 52849 58
LEAPCHEM CO., LTD.
+86-852-30606658
market18@leapchem.com China 43340 58
Aladdin Scientific
+1-+1(833)-552-7181
sales@aladdinsci.com United States 57505 58
J & K SCIENTIFIC LTD. 010-82848833 400-666-7788
jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 021-61259108 18621169109
market03@meryer.com China 40228 62
TCI (Shanghai) Development Co., Ltd. 021-67121386
Sales-CN@TCIchemicals.com China 24529 81
Energy Chemical 021-021-58432009 400-005-6266
sales8178@energy-chemical.com China 44689 61
Maya High Purity Chemicals +86 (573) 82222445 (0)18006601000 452520369
sales@maya-r.com China 11707 57
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489
Sales-JP@TCIchemicals.com Japan 28387 80

PHENOLPHTHALIN ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved