Sodium thiocyanate Nqe
Tus lej lej: 540-72-7
EineCs tus naj npawb: 208-754-4
Tshuaj mis: CNNAS
Packing: 25kg / hnab
Molecular hnyav: 81.0722
Sodium thiocyanate qauv
Kev qhia tshwj xeeb
Sodium Thiocyanate yog cov khoom dawb crystalline uas yog yooj yim soluble hauv dej, ethanol, thiab acetone. Ntawm lub ntsiab lus melting ntawm 287 degree, sulfides, Nitrides, thiab Cyanide Decompose. Reacts nrog cov kua qaub thiab cov oxidants muaj zog. Dawb Ortystal lossis hmoov, nrog tus txheeb ze ceev ntawm 1.735 g / cm3, nruab nrab hauv cov kua aqueous.
|
Cov khoom |
Lub hom phiaj |
Qho kawg |
|
Kev tshwm sim |
Dawb Crystal Hmoov |
Dawb Crystal Hmoov |
|
NASCN min% (kom qhuav) |
95.0% min |
97.6% |
|
Ph tus nqi hauv dej (50g / l) |
6.0-8.0 |
7.2 |
|
Clarity xeem hauv dej |
Kev meej |
Kev meej |
|
Tshuaj nyob hauv dej insolule hauv dej |
0.02% max |
0.001% |
|
Chloride (cl -) |
0.08% Max |
0.03% |
|
Sulfate (yog li42-) |
0.08% Max |
0.06% |
|
Hnyav Hlau (PB) |
0.003% Max |
0.002% |
|
Hlau (FE) |
0.0003% Max |
0.0001% |
|
Ywg dej |
4.0% Max |
1.43% |
Daim ntawv thov
Colorimetric txiav txim siab ntawm Fe³⁺
Dilute scn⁻ muab cov ntshav siab heev - liab complex nrog ferric ions; Cov tshuaj tiv thaiv yog qhov chaw classical - kev xeem thiab photometric txoj kev rau hlau (III) hauv cov zaub mov, dej thiab alloys.
Qhov qhia tau qhov qhia rau Titrimetric / Reagent rau Halides thiab nyiaj
SCN⁻ tau ua haujlwm hauv Volhard - Hom Argentometry: ces ages -}}}} siv fe³⁺ raws li qhov taw qhia. Tib lub hauv paus ntsiab lus txiav txim siab txiav txim siab txog kev txiav txim siab ntawm AG, HG, CU, thiab lwm yam. .
Kev ntsuas cov pa
Nag kevitation ntawm insoluble thiocyanates (agscn, cuscn, hg₂ (SCN) ₂) muab daim ntawv hnyav rau cov hlau sib xws.
Spectrophhotometric thiab Ion -} chromatographic txheem
Cov vascn ntshiab pab ua thawj tus qauv rau kev tsim kom muaj calibration curvation uas siv rau cov kab mob uas muaj zog ntawm cov kab hauv ib puag ncig lossis kev lom neeg.
Chaotrotropic reagent rau biomolecule kev kho
Cov kev ua kom siab (2-4 m) destabilize dej qauv, txhawb cov protein nthuav dav thiab membrane solubilisation; Li no ncej puab ntxiv rau lysis buffers, DNA / RNA extraction cov khoom siv thiab rau kab rov qab nyob rau hauv affinity chromatography.
Cov peev txheej npaj tau ntawm cov pab pawg -scn
Hauv cov ntaub ntawv hluavtaws hluavtaws hluavtaws hluavtaws yog qhov yooj yim, tsw {{0} Tsis muaj hloov pauv ntawm Heterocycles, Thioingas lossis sau npe rau kev ua haujlwm.
Ua tsaug rau koj cov kev mus ntsib thiab tos txais koj cov lus nug zoo!
Cim npe nrov: Sodium thioob
You Might Also Like
Xa kev nug