Bromocresol Green Me CAS 76-60-8
Hiki ke hoʻoheheʻe ʻia ka ʻōmaʻomaʻo Bromocresol i ka wai a hiki ke hoʻoheheʻe ʻia i ka ethanol, ether, ethyl acetate, a me benzene. Paʻa loa i ka alkali, huli ka ʻōmaʻomaʻo Bromocresol i kahi waihoʻoluʻu polū-ʻōmaʻomaʻo kūikawā i ka wā e hālāwai ai me nā ʻano wai wai alkaline. Hiki ke hoʻohana ʻia ka ʻōmaʻomaʻo Bromocresol ma ke ʻano he hōʻailona, e ʻike ʻia ka melemele ma ka pH 3.8 a me ka uliuli-'ōmaʻomaʻo ma ka pH 5.4.
| Nā mea | Hōʻike |
| PH (ka wā hoʻololi) | 3.8（ʻōmaʻomaʻo melemele）-5.4（uliuli） |
| Ka lōʻihi hawewe absorption (nm) λ1（PH 3.8） λ2（PH 5.4） | 440~445 615~618 |
| Ka helu ʻana o ka nui, L/cm · g α1（λ1PH 3.8, hāpana maloo） α2（λ2PH 5.4, hāpana maloʻo) | 24-28 53~58 |
| ʻO ka hoʻoheheʻe ʻana i ka ethanol | hala |
| ʻO ke koena ahi (i helu ʻia ma ke ʻano he sulfate) | ≤0.25 |
| Pohō ma ka maloʻo | ≤3.0 |
ʻO 1. ʻO Bromocresol green ka mea hoʻomaʻemaʻe Cell
2. ʻO ka ʻōmaʻomaʻo Bromocresol ka mea hōʻike Acid-base, ka pae hoʻololi o ka waihoʻoluʻu pH 3.8 (melemele) a i ka 5.4 (uliuli-'ōmaʻomaʻo)
3. Hoʻohana pinepine ʻia ka paʻakai paʻakai ʻōmaʻomaʻo Bromocresol i ka hoʻoholo colorimetric o ka acidity a me ka alkalinity. Hoʻohana ʻia ʻo Bromocresol green's sodium paʻakai ma ke ʻano he ʻāpana colorimetric no ke ana ʻana i ka waiwai pH ma o ka spectrophotometry. Hoʻohana ʻia ma ke ʻano he reagent no ka chromatography layer lahilahi e hoʻoholo ai i nā hydroxyacids aliphatic a me nā alkaloids, a ma ke ʻano he mea unuhi a hoʻokaʻawale no ka hoʻoholo photometric o nā cation ammonium quaternary.
1kg / ʻeke, 25kg / pahu, koi ʻia e ka mea kūʻai aku
Bromocresol Green Me CAS 76-60-8
Bromocresol Green Me CAS 76-60-8
