Kemikali Pengfa – Awọn iṣọra nigba lilo phosphoric acid

      Phosphoric acidjẹ acid inorganic ti o wọpọ pẹlu agbekalẹ kemikali H3PO4.Ko rọrun lati ṣe iyipada, ko rọrun lati bajẹ, rọrun lati deliquescence ni afẹfẹ.Phosphoric acid jẹ acid alabọde-alabọde pẹlu aaye crystallization ti 21°C.Nigbati iwọn otutu ba dinku ju iwọn otutu yii lọ, awọn kirisita hemihydrate yoo wa ni iṣaaju.Alapapo yoo padanu omi lati gba pyrophosphoric acid, ati lẹhinna padanu omi siwaju sii lati gba metaphosphoric acid.Phosphoric acid ni ohun-ini acid, acidity rẹ jẹ alailagbara ju hydrochloric acid, sulfuric acid, nitric acid, ṣugbọn lagbara ju acetic acid, boric acid, ati bẹbẹ lọ.

lo:

Oogun: A le lo phosphoric acid lati ṣeto awọn oogun ti o ni irawọ owurọ, gẹgẹbi iṣuu soda glycerophosphate.Ise-ogbin: Phosphoric acid jẹ ohun elo aise pataki fun iṣelọpọ awọn ajile fosifeti (superphosphate, potasiomu dihydrogen fosifeti, ati bẹbẹ lọ), ati fun iṣelọpọ awọn ounjẹ ounjẹ (calcium dihydrogen fosifeti);

Ounjẹ: Phosphoric acid jẹ ọkan ninu awọn afikun ounjẹ.O ti wa ni lo bi awọn kan ekan oluranlowo ati iwukara ounje.Coca-Cola ni phosphoric acid ninu.Phosphate tun jẹ afikun ounjẹ pataki ati pe o le ṣee lo bi imudara ijẹẹmu;

Ile-iṣẹ: Phosphoric acid jẹ ohun elo aise kemikali pataki, ati awọn iṣẹ akọkọ rẹ jẹ bi atẹle;

1. Ṣe itọju oju irin lati ṣe fiimu fosifeti ti a ko le yanju lori irin irin lati daabobo irin lati ipata;

2. Ti a dapọ pẹlu acid nitric bi oluranlowo didan kemikali lati mu imudara ti dada irin;

3. Awọn esters Phosphate, awọn ohun elo aise fun iṣelọpọ awọn ohun elo ati awọn ipakokoropaeku;

4. Awọn ohun elo aise fun iṣelọpọ ti awọn apanirun ina ti o ni irawọ owurọ;

Awọn iṣọra nigba lilo phosphoric acid:

Lati daabobo awọ ara lati phosphoric acid, a ṣe iṣeduro wọ awọn aṣọ aabo kemikali gẹgẹbi awọn bata orunkun, awọn aṣọ aabo ati awọn ibọwọ, a tun ṣeduro pe ki o ra awọn awọ ara ti a ṣe ti roba adayeba, polyvinyl chloride, nitrile roba, butyl roba tabi awọn ohun elo aabo neoprene.

Lati daabobo oju tabi oju lati irritating ati awọn nkan apanirun, a ṣeduro lilo awọn goggles ailewu fun aabo kemikali.

Ni afikun si fentilesonu eefi gbogboogbo, a ṣeduro lilo afẹfẹ eefin agbegbe lati ṣe idiwọ awọn eewu atẹgun nigba lilo phosphoric acid, gbogbo awọn iṣọra ayika ti o yẹ ni a gbọdọ mu, ati awọn eefin le nilo lati tu silẹ taara ni ita.