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Chromium sulfate
Chromium sulfate jẹ iru imi-ọjọ kan pẹlu ilana kemikali CR2 (SO4) 3. Irisi jẹ lulú alawọ ewe tabi okuta-igi flake alawọ dudu dudu.Ni afikun si hexahydrate, awọn agbo ogun anhydrous tun wa ati ọpọlọpọ awọn agbo ogun ti o ni omi okuta kirisita oriṣiriṣi, to awọn ohun elo 18 ti gara ...Ka siwaju -
Chromic Acid
Ṣiṣatunṣe ọna itupalẹ Ipinnu akoonu chromic acid ni afẹfẹ: a gba ayẹwo nipasẹ àlẹmọ, tituka ni sulfuric acid, ati lẹhinna pinnu nipasẹ colorimetry lẹhin fifi diphenylcarbazide kun (ọna NIOSH).Ipinnu ti akoonu chromic acid ninu omi: a mu ayẹwo jade ati pinnu ...Ka siwaju -
Sodium Dichromate Awọn nkan ti o nilo akiyesi
Akopọ ti awọn eewu Ilera: majele nla: ifasimu le fa awọn ami aibikita ọgbẹ atẹgun nla, epistaxis, hoarseness, atrophy mucosa imu, nigbakan ikọ-fèé ati cyanosis.Awọn ọran ti o lewu le dagbasoke pneumonia kemikali.Isakoso ẹnu le ṣe iwuri ati ba ounjẹ ounjẹ jẹ…Ka siwaju
