Kjeldahl Flasks
a.Pamwamba posalala
b.Kusamva kutentha kwambiri
c.Kulimbana ndi kuthamanga kwambiri
d.Kulimbana ndi asidi amphamvu (kupatula HF) alkali wamphamvu ndi
e.Kukhazikika kwazinthu
f.Chigawo chochepa cha kukula kwa kutentha
g.Kuwonekera kwapamwamba
Kufotokozera
Mawonekedwe
- Yosalala pamwamba
- Kugonjetsedwa ndi kutentha kwakukulu
- Kugonjetsedwa ndi kuthamanga kwambiri
- Kugonjetsedwa ndi asidi amphamvu (kupatula HF) alkali wamphamvu ndi
- Kukhazikika kwakuthupi
- Low coefficient of thermal expansion
- Kuwonekera kwapamwamba
Kukula Kwanthawi zonse
|
Kjeldahl Flasks |
||||
|
Kuchuluka/ml |
Kunja kwa khosi / mm |
Kunja kwa thupi/mm |
Kutalika konse / mm |
Mini khoma makulidwe/mm |
|
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 |
Mapulogalamu
Food Science & Nutrition
Kusanthula kwa mapuloteni muzakudya.
01
Agricultural Chemistry
Kusanthula nthaka, feteleza, ndi mbewu nayitrogeni.
02
Kuyang'anira Zachilengedwe
Kuyesa kwa madzi otayira ndi kuwononga nitrogen.
03
Biochemistry & Pharmaceuticals
Kuchuluka kwa mapuloteni mu zitsanzo za biological ndi mankhwala.
04
Chemical Viwanda
Muyezo wa nayitrogeni mu organic ndi inorganic mankhwala.
05
Katundu
|
Zakuthupi |
Makhalidwe |
|
Chiyero |
＞99.99% |
|
Kuchulukana |
2.2g/cm3 |
|
Kuwonekera |
＞90% |
|
Mohs Kuuma |
5.5--6.5 |
|
Deformation Point |
1280 digiri |
|
Softening Point |
1780 digiri |
|
Annealing Point |
1250 digiri |
|
Kutentha Kwambiri (20 - 350 digiri) |
670J/kg. digiri |
|
Thermal Conductivity (20 digiri) |
1.4W/m. digiri |
|
Kutentha kwapakati (w/mk,1000 digiri) |
1.0-1.2 |
|
Refractive Index |
1.4585 |
|
Coefficient of Thermal Expansion |
5.510 -7cm/cm. digiri |
|
Kutentha - Kutentha kogwira ntchito |
1750-2050 digiri |
|
Kutentha kwa Service kwakanthawi - |
1300 digiri |
|
Kutalika kwa - kwa Service Temperature |
1100 digiri |
|
Chemical Properties |
Makhalidwe |
|
Kusamva acid |
Asidi Wamphamvu (kupatula HF), Wamphamvu alkali, organic solution |
|
Kutentha kwambiri Kusamva dzimbiri |
Zabwino kwambiri |
|
Chitsulo Chosayera |
5 ppm |
|
Zida Zamagetsi |
Makhalidwe |
|
Kukaniza |
7107Ω.cm |
|
Mphamvu ya Insulation |
250 ~ 400Kv/cm |
|
Dielectric Constant |
3.7~3.9 |
|
Dielectric Absorption Coefficient |
＜410-4 |
|
Dielectric Loss Coefficient |
＜110-4 |
|
Mechanical Properties |
Makhalidwe |
|
Compressive Mphamvu |
1100MPa |
|
Kupindika Mphamvu |
ku 67MPa |
|
Kulimba kwamakokedwe |
48MP pa |
|
Chiwerengero cha Poisson |
0.14~0.17 |
|
Young's Modulus |
72000MPa |
|
Shear Modulus |
31000MPa |
Manyamulidwe
FAQ
Q1: Ndi kutentha kotani komwe botolo la quartz la Kjeldahl lingapirire?
A: Kufikira madigiri 1,200, koma kugwiritsa ntchito nthawi yayitali kuposa madigiri 1,000 kungachepetse moyo.
Q2: Kodi angagwiritsidwe ntchito ndi hydrofluoric acid (HF)?
A: Ayi, HF imasungunula quartz. Gwiritsani ntchito PTFE kapena zotengera za platinamu kuti muchepetse chimbudzi cha HF.
Q3: Chifukwa chiyani musankhe quartz pagalasi la borosilicate?
A: Quartz ili ndi kukana kwamphamvu kwamafuta, kulimba kwamankhwala, komanso kuyera kwambiri.
Q4: Ndi makulidwe ati omwe alipo?
A: Makulidwe wamba: 50mL, 100mL, 250mL, 500mL, 1000mL (kukula kwake komwe kulipo pakafunsidwa).
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