Kjeldahl Flasks
a.Smooth nto
b.Resistant mus rau kub
c.Resistant rau siab
d.Resistant kom muaj zog acid (tshwj tsis yog HF) muaj zog alkali thiab
e. Khoom stability
f. Tsawg coefficient ntawm thermal expansion
g. Siab pob tshab
Hauj lwm lawm
Nta
- Ntxim qab
- Resistant mus rau qhov kub thiab txias
- Resistant rau siab
- Resistant kom muaj zog acid (tshwj tsis yog HF) muaj zog alkali thiab
- Khoom ruaj khov
- Tsawg coefficient ntawm thermal expansion
- Siab pob tshab
Qhov Loj
|
Kjeldahl Flasks |
||||
|
Ntim / ml |
Sab nraud txoj kab uas hla rau caj dab / mm |
Sab nraud txoj kab uas hla rau lub cev / hli |
Tag nrho qhov siab / hli |
Mini phab ntsa thickness / hli |
|
50 |
22 |
51 |
200 |
1.0 |
|
100 |
22 |
60 |
200 |
1.0 |
|
250 |
34 |
81 |
270 |
1.0 |
|
500 |
34 |
101 |
300 |
1.0 |
|
750 |
34 |
115 |
340 |
1.3 |
|
1000 |
34 |
125 |
350 |
1.3 |
Daim ntawv thov
Food Science & Nutrition
Kev tsom xam cov ntsiab lus ntawm cov protein hauv cov khoom noj.
01
Agricultural Chemistry
Av, chiv, thiab qoob loo nitrogen tsom xam.
02
Kev saib xyuas ib puag ncig
Kev kuaj dej khib nyiab thiab cov pa phem nitrogen.
03
Biochemistry & Pharmaceuticals
Protein kom muaj nuj nqis hauv cov qauv tshuaj lom neeg thiab tshuaj.
04
Kev lag luam tshuaj
Nitrogen ntsuas hauv cov organic thiab inorganic compounds.
05
Cov khoom
|
Lub cev muaj zog |
Tus nqi |
|
Purity |
＞99.99% |
|
Qhov ntom |
2.2g / cm33 |
|
Pob tshab |
＞90% |
|
Mohs Hardness |
5.5--6.5 |
|
Deformation Point |
1280 degree |
|
Softening Point |
1780 degree |
|
Annealing Point |
1250 degree |
|
Thaum tshav kub kub tshwj xeeb (20 - 350 degree) |
670 J/kg degree |
|
Thermal conductivity (20 degree) |
1.4 W / m degree |
|
Thaum tshav kub kub conductivity (w / mk, 1000 degree) |
1.0-1.2 |
|
Refractive Index |
1.4585 |
|
Coefficient ntawm Thermal Expansion |
5.510 -7cm / hli. degree |
|
Kub - Ua haujlwm Kub |
1750-2050 degree |
|
Luv - Lub Sijhawm Kev Pabcuam Kub |
1300 degree |
|
Ntev - Lub Sijhawm Kev Pabcuam Kub |
1100 degree |
|
Chemical Properties |
Tus nqi |
|
Acid resistant |
Muaj zog Acid (tshwj tsis yog HF), Muaj zog alkali, organic tov |
|
Kub kub Corrosion resistant |
Zoo heev |
|
Hlau impurity ntsiab lus |
5 ppm |
|
Cov khoom hluav taws xob |
Tus nqi |
|
Kev tiv thaiv |
7107Ω cm |
|
Rwb thaiv tsev muaj zog |
250 ~ 400 kW/cm |
|
Dielectric tsis tu ncua |
3.7~3.9 |
|
Dielectric Absorption Coefficient |
＜410-4 |
|
Dielectric Loss Coefficient |
＜110-4 |
|
Mechanical Properties |
Tus nqi |
|
Compressive zog |
1100MPa |
|
Khoov zog |
67mpa ua |
|
Tensile zog |
48MPa ua |
|
Poisson tus ratio |
0.14~0.17 |
|
Young's Modulus |
72000 MPa |
|
Shear Modulus |
31000MPa |
Kev xa khoom
FAQ
Q1: Dab tsi yog qhov kub siab tshaj plaws ntawm quartz Kjeldahl lub hwj tuaj yeem tiv taus?
A: Txog li 1,200 degree, tab sis kev siv ntev tshaj li 1,000℃yuav txo tau txoj sia.
Q2: Nws puas tuaj yeem siv nrog hydrofluoric acid (HF)?
A: Tsis yog, HF dissolves quartz. Siv PTFE lossis platinum ntim rau HF digestion.
Q3: Vim li cas thiaj xaiv quartz hla borosilicate iav?
A: Quartz muaj ntau dua thermal shock resistance, tshuaj zoo dua qub, thiab siab dua purity.
Q4: Qhov ntau thiab tsawg yog muaj?
A: Qhov ntau thiab tsawg: 50mL, 100mL, 250mL, 500mL, 1000mL (qhov ntau thiab tsawg muaj raws li kev thov).
Cim npe nrov: Tuam Tshoj kjeldahl flasks manufacturers, lwm tus neeg, Hoobkas
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