Acid Glacial Acetic nke Ụlọ Ọrụ Na-emepụta Mmiri Mmiri 99.9% na Nnyefe Ukwu

Nkọwa Dị Mkpirikpi:

Nọmba CAS:64-19-7Aha Ndị Ọzọ:Etanoic Acid/GAAMF:CH3COOHNọmba EINECS:200-580-7Ọkwa ọkwa:Nri/Ọkwa ụlọ ọrụ mmepụta iheỊdị ọcha:Nkeji 99.8%Ọdịdị:Mmiri Na-enweghị AgbaNgwa:Ákwà/Nri/Akpụkpọ anụAha njirimara:Shandong PulisiỌdụ ụgbọ mmiri nke ibu:Qingdao/Tianjin/ShanghaiNkwakọba:30KG/215KG/1050KG drum; ISO TankKoodu HS:29152119Ọnụọgụ:17.2-22.2MTS/20`FCLAsambodo:ISO SGS BV HALAL KOSHERMba UN:2789Klas Dị Ize Ndụ:8+3Mak:Nhazi


Nkọwa Ngwaahịa

Akara Ngwaahịa

Anyị nwere akụrụngwa ọgbara ọhụrụ. A na-ebupụ ngwaahịa anyị maka USA, UK na ndị ọzọ, na-enwe ọkwa dị egwu n'etiti ndị ahịa maka Factory Liquid Glacial Acetic Acid 99.9% na Ngwugwu Oke. Anyị ga-eme ike anyị niile iji mezuo ma ọ bụ gafere nkọwapụta nke ndị ahịa site na ngwọta kachasị mma, echiche dị elu, na onye na-enye ọrụ dị irè na nke oge. Anyị na-anabata ndị niile nwere mmasị.
Anyị nwere akụrụngwa ọgbara ọhụrụ. A na-ebupụ ngwaahịa anyị maka USA, UK na ndị ọzọ, na-enwe ọmarịcha ọkwa n'etiti ndị ahịa maka , . Ire ngwọta anyị anaghị akpata ihe egwu ma na-eweta nnukwu uru nye ụlọ ọrụ gị kama. Ọ bụ mbọ anyị na-agba mgbe niile ịmepụta uru maka ndị ahịa. Ụlọ ọrụ anyị na-achọ ndị nnọchi anya n'eziokwu. Gịnị ka ị na-eche? Bịa sonyere anyị. Ugbu a ma ọ bụ na ọ dịghị mgbe.
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普利斯11_04
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俄语
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企业微信截图_20231214142743Ọdịnaya nke Asịd Glacial Acetic Liquid
Ụkpụrụ: Ntinye nke nutralization site na iji sodium hydroxide standard solution site na iji phenolphthalein dị ka ihe ngosi. A na-ewepụ ọdịnaya nke Formic acid na ngụkọ.
Ihe ndị na-eme ka ihe dịghachi ndụ na ngwọta ya:
Sodium hydroxide bụ ihe ngwọta ọkọlọtọ: c(NaOH) = 1 mol/L.
Ihe ngosi Phenolphthalein: 5 g/L mmiri ethanol. Gbazee 0.5 g phenolphthalein na 100 ml nke 95% ethanol (V/V) wee jiri mmiri sodium hydroxide 4 g/L mee ka ọ ghara ịdị mma ruo mgbe agba pink pụtara ìhè.
Ngwa: Karama nha kọnịkal (ikike 3 ml); alkaline burette (ikike 50 ml). Mmiri Glacial Acetic Acid.
Usoro: Tụọ ihe dị ka gram 2.5 nke ihe nlele n'ime karama nha kọnịkal, nke ruru gram 0.0001. Tinye karama ahụ n'ime karama kọnịkal 250 ml nke nwere 50 ml nke mmiri a gwakọtara agwakọta nke na-enweghị carbon dioxide. Mepee mkpuchi karama ahụ, tinye 0.5 ml nke ihe ngosi phenolphthalein, wee jiri sodium hydroxide mee titrate ruo mgbe agba pink dị ntakịrị ga-adịgide ruo sekọnd ise.


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