{"id":4050,"date":"2021-04-13T12:39:17","date_gmt":"2021-04-13T12:39:17","guid":{"rendered":"https:\/\/longchangchemical.com\/?post_type=product&p=4050"},"modified":"2026-05-08T02:59:34","modified_gmt":"2026-05-08T02:59:34","slug":"bromocresol-green-cas-76-60-8","status":"publish","type":"product","link":"https:\/\/longchangchemical.com\/id\/product\/bromocresol-green-cas-76-60-8\/","title":{"rendered":"Bromokresol hijau CAS 76-60-8"},"content":{"rendered":"

Bromokresol hijau CAS 76-60-8<\/strong><\/h2>\n

PH Interval perubahan warna: 3,8 (kuning-hijau)-5,4 (biru)<\/h4>\n

Panjang gelombang serapan maksimum (nm): \u03bb1 (PH3.8) 440-445<\/h4>\n

\u03bb2 (PH5.4) 615-618<\/h4>\n

Koefisien penyerapan massa, L\/(cm.g): \u03b11 (\u03bb1, sampel kering PH3,8)<\/h4>\n

\u03b12 (\u03bb1, sampel kering PH5.4)<\/h4>\n

Uji kelarutan etanol: Lulus tes<\/h4>\n

Kehilangan pengeringan: \u22643,0<\/h4>\n

Residu pada pengapian (sebagai SO4) %': \u22640,25<\/h4>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Item<\/h4>\n<\/td>\n

\n

Spesifikasi<\/h4>\n<\/td>\n

\n

Hasil<\/h4>\n<\/td>\n<\/tr>\n

\n

Pengujian (%)<\/h4>\n<\/td>\n

\n

\u226598.5<\/h4>\n<\/td>\n

\n

98.9<\/h4>\n<\/td>\n<\/tr>\n

\n

PH Interval perubahan warna<\/h4>\n<\/td>\n

\n

3,8 (kuning-hijau)-5,4 (biru)<\/h4>\n<\/td>\n

\n

Lulus tes<\/h4>\n<\/td>\n<\/tr>\n

\n

Panjang gelombang penyerapan maksimum (mm)<\/h4>\n<\/td>\n

\n

\u03bb1\u00a0<\/sub>(PH3.8) 440-445<\/h4>\n<\/td>\n

\n

442<\/h4>\n<\/td>\n<\/tr>\n

\n

\u03bb2\u00a0<\/sub>(PH5.4) 615-618<\/h4>\n<\/td>\n

\n

616<\/h4>\n<\/td>\n<\/tr>\n

\n

Koefisien penyerapan massa, L\/(cm.g)<\/h4>\n<\/td>\n

\n

\u03b11<\/sub>(\u03bb1<\/sub>, sampel kering PH3.8) 24-28<\/h4>\n<\/td>\n

\n

25<\/h4>\n<\/td>\n<\/tr>\n

\n

\u03b12<\/sub>(\u03bb1<\/sub>, sampel kering PH5.4) 53-58<\/h4>\n<\/td>\n

\n

55<\/h4>\n<\/td>\n<\/tr>\n

\n

Uji etanol terlarut<\/h4>\n<\/td>\n

\n

Lulus tes<\/h4>\n<\/td>\n

\n

Lulus tes<\/h4>\n<\/td>\n<\/tr>\n

\n

Kerugian karena pengeringan<\/h4>\n<\/td>\n

\n

\u22643.0<\/h4>\n<\/td>\n

\n

2.1<\/h4>\n<\/td>\n<\/tr>\n

\n

Residu pada pengapian (seperti SO4<\/sub>)%<\/h4>\n<\/td>\n

\n

\u22640.25<\/h4>\n<\/td>\n

\n

0.25<\/h4>\n<\/td>\n<\/tr>\n

\n

Kesimpulan<\/h4>\n<\/td>\n

\n

Hasilnya sesuai dengan indikator HG\/T4017-2008<\/h4>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Penggunaan Bromocresol hijau<\/strong><\/h2>\n

Sebagai noda yang penting, bromocresol green (BCG) memiliki beragam aplikasi yang luas dalam bidang analisis.<\/h4>\n

1. Metode untuk menguji kandungan amina bebas dalam NMP, meliputi langkah-langkah: menyiapkan indikator bromocresol hijau-metil merah; mengambil sejumlah sampel NMP dalam wadah, menambahkan isopropanol dan mengocoknya dengan lembut hingga tercampur; Tambahkan indikator bromocresol hijau-metil merah dan aduk rata, titrasi dengan larutan standar asam klorida, dari titrasi hijau ke kekuningan; sesuai dengan rumus:Amina bebas % = c * V standar * K \/ \u03c1 * V, hitung amina bebas % dalam sampel NMP. Penemuan ini menyiapkan indikator bromokresol hijau-metil merah dan mengadopsi titrasi asam-basa untuk menguji kandungan amina dalam NMP. Menurut parameter dalam proses titrasi asam-basa, kandungan amina bebas dinyatakan sebagai persentase massa: % amina bebas = c * V standar * K \/ \u03c1 * V, evaluasi kinerja NMP sesuai dengan hasil pengujian. Selain itu, metode pengujiannya sederhana, nyaman, cepat dan murah, serta dapat digunakan secara luas dalam produksi dan penelitian.<\/h4>\n

2. Kertas uji indikator campuran untuk mengukur konsentrasi amonia di udara dan metode persiapan serta pendeteksiannya termasuk dalam bidang teknis pemantauan lingkungan dan kebersihan industri. Kertas uji adalah kertas uji yang dimuat dengan bromocresol hijau, metil merah, asam dan surfaktan nonionik pada kertas dasar; menurut rasio massa, bromocresol hijau: metil merah: asam: surfaktan nonionik = (1,0 ~ 2,0): (0,188 ~ 0,75): (0,75 ~ 2,0): (2,5 ~ 7) \u00d7 10-3. Metode persiapannya adalah sebagai berikut: menyiapkan cairan perendam sesuai dengan rasio reagen, merendam kertas dasar, dan mengeringkan serta menyegel plastik. Metode pendeteksiannya adalah sebagai berikut: amonia di udara di area deteksi bereaksi dengan reagen campuran kertas uji, berubah dari merah anggur menjadi hijau, dan konsentrasi amonia di udara di area deteksi diperoleh sesuai dengan hubungan antara panjang pita perubahan warna kertas uji dan konsentrasi amonia. Kertas uji memiliki karakteristik respons sensitif, presisi tinggi, biaya produksi rendah, penggunaan yang mudah, dll., Dan memiliki kepraktisan dan manfaat ekonomi yang signifikan.
\n3. Produk ini dapat menggunakan metode indikator asam-basa untuk menentukan tingkat deasetilasi kitooligosakarida.<\/h4>\n

 <\/p>\n

Kemasan hijau Bromocresol<\/strong><\/h2>\n

1kg\/tas 25kg\/drum.<\/h4>\n

 <\/p>\n

Penyimpanan Bromokresol hijau<\/strong><\/h2>\n

Disimpan di tempat yang sejuk, kering, dan berventilasi.<\/h4>\n

 <\/p>\n

Produk seri yang sama<\/strong><\/h2>\n\n\n\n\n
\n

Bromokresol ungu<\/span><\/a><\/h4>\n<\/td>\n

\n

115-40-2<\/h4>\n<\/td>\n<\/tr>\n

\n

Hijau bromokresol<\/h4>\n<\/td>\n

\n

76-60-8<\/h4>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Hubungi Kami Sekarang!<\/b><\/strong><\/h2>\n

Jika Anda membutuhkan COA, MSDS atau TDS, silakan isi informasi kontak Anda di formulir di bawah ini, kami biasanya akan menghubungi Anda dalam waktu 24 jam. Anda juga bisa mengirim email kepada saya info@longchangchemical.com<\/a><\/span> selama jam kerja (8:30 pagi hingga 6:00 sore UTC+8 Senin-Sabtu) atau gunakan obrolan langsung situs web untuk mendapatkan balasan secepatnya.<\/b><\/strong><\/h4>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Nama kimia: Bromocresol hijau<\/h4>\n

CAS: 76-60-8<\/h4>\n

Rumus Molekul: C21H14Br4O5S<\/h4>\n

Berat molekul: 698.01<\/h4>\n

Penampilan: Kristal kuning<\/h4>","protected":false},"featured_media":4493,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[69],"product_tag":[],"class_list":{"0":"post-4050","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-catalysts-chemical-auxiliary-agents","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"\nChina Bromocresol green Manufacturer \uff06 Supplier - Longchang chemical Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Longchang Chemical is a leading manufacturer and supplier of Bromocresol green in China. Buy Bromocresol green in china. 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