Nitrogen flask fixed te tihfai dan tur .

Nitrogen flask fixed te tihfai dan tur .
Nitrogen fixing flask hian nitrogen fixing experiment-ah hmun pawimawh tak a chang a ni. A tihfai hunah chuan a thianghlim leh a hnu lama experiment a nghawng loh nan a mamawh a ni. Nitrogen fixing instrument leh general laboratory flask cleaning logic-a cleaning information kaihhnawih atanga thlirin, a hnuaia tihfai dante hi reference atan hman theih a ni:

Preliminary flushing 1000 a ni.
Experiment an tih zawh hnuah nitrogen flask-a solution la awm chu theh nghal tur a ni a, chutah chuan tap water hmangin silfai tur a ni a, chu chuan a la awm tam zawk chu a paih chhuak tur a ni. Hei hian thil awmsa te chu a vawt lo thei a, tihfai harsa a ti thei a, chutih rualin a hnu lama tihfai harsatna pawh a ti tlem thei bawk.

targeted processing 1000 a ni.
Organic interference dinhmun .
Distillation process chhung hian organic compound thenkhat chu ammonia nen a ruala distilled out an nih a rinawm a, chu chuan tehna a tibuai thei a ni. Substance thenkhat, formaldehyde ang chi te chu acidic conditions (pH 2019 hnuaiah a lum thei a, a bo thei bawk.<1). An appropriate amount of acidic solution (such as dilute hydrochloric acid) can be added to the nitrogen flask, and then boiled to remove possible organic interference. But attention should be paid to controlling the boiling time and temperature to avoid damage to the flask.

Thil bawlhhlawh tak tak enkawlna .
Nitrogen flask-ah bawlhhlawh rilru na tak a awm chuan nitrogen analyzer-a steam bottle cap tihfai dan tur i en thei a, enkawlna atan 20% glacial acetic acid i hmang thei bawk. Nitrogen flask-ah 20% glacial acetic acid tling tawk inject la, hun bituk chhung atan soak emaw heat emaw la (hun bik chu bawlhhlawh nasat dan azirin siamrem theih a ni), chutah chuan glacial acetic acid chu theh chhuak rawh. Hetiang method hian glacial acetic acid chemical property hmangin bawlhhlawh rilru na tak tak a tifai a, a paih chhuak thin.

Conventional tihfai dan tur .
A tihfai nan liquid dah la .
Distillation flask-ah tui 350ml dah la, glass beads engemaw zat dah la, chu chuan tui chu a lum loh nan a pui ang. Instrument i dah zawh chuan distillation operation ti la, tui 100ml tal la rawh. Glass beads hian heating process chhungin liquid chu uniform takin a boil thei a, chu chuan liquid chu tharum thawha zuang chhuakin flask atanga splash chhuah a veng thei a, distillation process himna leh stability a tichiang thei bawk.

A tifai leh ang .
Distillate leh residual liquid chu flask chhungah paih la, chu chuan flask atanga bawlhhlawh leh thil awmsa te chu a paih chhuak thei a ni. A tihfai dan chu a lungawithlak loh chuan a chunga kan sawi ang hian a chunga kan sawi ang hian, a tihfai nan liquid dah belh a ni a, flask chu uluk taka tihfai a nih hma chuan tih leh theih a ni. Multiple cleaning hian flask chhunga bawlhhlawh awmte chu a chhuah vek theih nan a enkawl thei a, chu chuan a hnu lama experiment-te dikna a tichiang thei a ni.
A tawp berah chuan tihfai leh tihthianghlim .
Tui thianghlim nen silfai .
Nitrogen flask hi tui thianghlim, a tlangpuiin vawi 2-3 hmangin vawi tam tak silfai la, residual cleaning agents leh impurities te chu uluk takin paih chhuak rawh. Rinse neih apiangin tui thianghlim chuan flask hmun zawng zawng, a hmui, bang leh a hnuai lam te pawh a tawk kim vek theih nan enfiah rawh. Rinsing process chhung hian tuiin a chhung a tihfai tha zawk theih nan flask chu zawi zawiin vuan la.

Drying tih dan tur .
Nitrogen flask tihfai chu invert la, air dry chu natural takin dah rawh. Hot air drying pawh hman theih a ni a, mahse boruak lum 40℃leh 50℃inkar boruak lum chu 60℃aia sang lo turin control tur a ni a, boruak lum lutuk avanga flask a chhiat loh nan. Nitrogen flask hring chu nakin lawka hman theih turin hmun vawt leh boruak luh theihna hmunah dah tur a ni.