Sodium Acetate Trihydrate
Cov ntaub ntawv yooj yim
Lub npe:Sodium Acetate Trihydrate
Lwm lub npe:Sodium ethanoate trihydrate
Cov mis mos molecular:CH₃COONa·3H₂O (CH₃COONa·3H₂O)
Molecular Luj:136.08
CAS nr:6131-90-4
2. Lub cev thiab tshuaj lom neeg Cov khoom
- Qhov tsos:Xim tsis muaj pob tshab crystals
- Melting point:Kwv yees li 58℃(melted hauv nws tus kheej dej ntawm crystallization)
- Ceev:Kwv yees li 1.45 g / cm³
- Solubility:Soluble nyob rau hauv dej (li 76 g / 100 mL ntawm 0 degree); soluble nyob rau hauv ethanol
- Aqueous daws:Tsis muaj zog alkaline (pH txog 8.5-9.0)
- Kev ruaj ntseg:Effloresces hauv huab cua qhuav (poob dej ntawm crystallization); me ntsis hygroscopic
3.Main Functions and Applications (Nws yog dab tsi siv?)
- Buffering agent (kev siv tseem ceeb):Lub acetic acid / sodium acetate buffer yog ib qho ntawm cov khoom siv tsis zoo, siv rau kev tswj pH meej hauv cov tshuaj, biochemical, textile, electroplating thiab photographic - kho cov txheej txheem.
- Theem -hloov chaw khaws cia (cov yam ntxwv ntawm daim ntawv thov):Cov tshuaj supersaturated sodium acetate trihydrate tso tawm cov cua sov ntawm crystallization, ua haujlwm tseem ceeb ntawm tes sov so thiab cov pob kub kub raws li theem - hloov lub zog- cov khoom khaws cia.
- Khoom noj khoom haus:Preservative, acidity regulator thiab flavoring agent (E262).
- Pharmaceutical:Cov tshuaj alkaline, antacid, dialysate tivthaiv thiab cov khoom siv pabcuam rau osmotic diuretics.
- Textile thiab dyeing:Mordant, buffering tus neeg sawv cev thiab pH regulator.
- Kev lag luam tshuaj:Raw khoom rau glacial acetic acid, acetic anhydride thiab acetate esters.
- Kev kho dej:kev kho pH.
- Electroplating:pH buffering tus neeg sawv cev thiab ua ntsev.
4.A Benchmark-Level Industrial Masterpiece - A Meticulously Crafted "Food-Grade" Buffering Crystalline Ntsev!
Sodium acetate cov ntsiab lus Ntau dua lossis sib npaug rau 99.0% (qib zaub mov ib GB 30603).
Tsawg tsis muaj alkali, qis arsenic, txhuas thiab hlau hnyav - zaub mov- qib kev nyab xeeb.
High purity thiab zoo heev buffering muaj peev xwm.
"Qhov koj pom yog qhov koj tau txais" - txhua lub nkoj nrog daim ntawv pov thawj tiav ntawm kev tshuaj xyuas.
Khoom Specification - Sodium Acetate Trihydrate
|
Yam khoom |
Specification |
|
Khoom qauv |
Sodium Acetate Trihydrate (CH3COONa · 3H2O) |
|
Qhov tshwm sim |
Xim tsis muaj pob tshab crystals |
|
Sodium acetate cov ntsiab lus (raws li CH3COONa · 3H2O, %) |
Ntau dua lossis sib npaug rau 99.0 |
|
Dawb alkali (raws li NaOH, %) |
Tsawg dua los yog sib npaug li 0.2 |
|
Dej-insoluble teeb meem (%) |
Tsawg dua lossis sib npaug li 0.03 |
|
Arsenic (As, ppm) |
Tsawg dua los yog sib npaug 3 |
|
Lead (Pb, ppm) |
Tsawg dua los yog sib npaug 2 |
|
Cov hlau hnyav (raws li Pb, ppm) |
Tsawg dua los yog sib npaug li 10 |
|
pH (1% aqueous tov) |
7.5 – 9.0 |
|
Poob ntawm ziab (%) |
38.0 – 41.0 |
|
Ntim |
25 kg kraft hnab nrog PE puab / 25 kg woven hnab |
- Test method reference:sodium acetate cov ntsiab lus los ntawm acid{0}}base titration (GB 30603); dawb alkali los ntawm acid-base titration; dej-insoluble teeb meem los ntawm txoj kev gravimetric (GB/T 9738); poob ntawm ziab los ntawm qhov cub- ziab; arsenic los ntawm molybdenum xiav txoj kev; txhuas / hnyav hlau los ntawm atomic absorption los yog colorimetric txoj kev.
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