benzoic acid yog dab tsi?
Thov xyuas cov ntaub ntawv
Lub npe khoom: Benzoic acid
CAS Naj Npawb: 65-85-0
Cov mis mos molecular: C7H6O2
Cov Khoom: Flaky los yog koob zoo li siv lead ua, nrog benzene thiab formaldehyde tsw; me ntsis soluble hauv dej; soluble hauv ethyl cawv, diethyl ether, chloroform, benzene, carbon disulfide thiab carbon tetrachloride; melting point (℃): 121.7; boiling point (℃): 249.2; saturated vapor pressure (kPa): 0.13 (96 ℃); flashing point (℃): 121; ignition kub (℃): 571; qis dua explosive limit % (V/V): 11; refractive index: 1.5397nD
Kev siv tseem ceeb ntawm benzoic acid yog dab tsi?
Cov kev siv tseem ceeb:Benzoic acidsiv ua tus neeg sawv cev bacteriostatic ntawm emulsion, tshuaj txhuam hniav, jam thiab lwm yam khoom noj; mordant ntawm dyeing thiab luam ntawv; nruab nrab ntawm kws tshuaj thiab dyes; rau kev npaj ntawm plasticizer thiab tshuaj tsw qab; cov khoom siv hlau antirust tus neeg sawv cev.
Cov ntsuas tseem ceeb:
| Yam khoom txheem | Cov ntawv sau tshuaj suav xyoo 2010 | Phau Ntawv Tshuaj British BP 98—2009 | Tebchaws Meskas Pharmacopeia USP23—32 | cov khoom noj khoom haus ntxiv GB1901-2005 | E211 | FCCV | cov khoom noj khoom haus ntxiv NY/T1447-2007 |
| tsos | siv lead ua dawb flaky los yog koob zoo li siv lead ua | siv lead ua xim tsis muaj xim lossis hmoov siv lead dawb | — | siv lead dawb | hmoov siv lead dawb | dawb flaky los yog koob zoo li siv lead ua | siv lead dawb |
| kev xeem tsim nyog | dhau lawm | dhau lawm | dhau lawm | dhau lawm | dhau lawm | dhau lawm | dhau lawm |
| cov ntsiab lus qhuav | ≥99.0% | 99.0-100.5% | 99.5-100.5% | ≥99.5% | ≥99.5% | 99.5% -100.5% | ≥99.5% |
| tsos ntawm cov kuab tshuaj | — | meej, pob tshab | — | — | — | — | — |
| yooj yim oxidized tshuaj | dhau lawm | dhau lawm | dhau lawm | dhau lawm | dhau lawm | dhau lawm | dhau ★ |
| cov khoom uas yooj yim carbonizable | — | tsis tsaus dua li Y5 (daj) | tsis tsaus dua li Q (liab dawb) | dhau lawm | dhau lawm | dhau lawm | — |
| hlau hnyav (Pb) | ≤0.001% | ≤10ppm | ≤10ug/g | ≤0.001% | ≤10mg/kg | — | ≤0.001% |
| cov seem ntawm kev kub hnyiab | ≤0.1% | — | ≤0.05% | 0.05% | — | ≤0.05% | — |
| qhov chaw yaj | 121-124.5ºC | 121-124ºC | 121-123ºC | 121-123ºC | 121.5-123.5ºC | 121-123 ℃ | 121-123 ℃ |
| cov tshuaj chlorine | — | ≤300ppm | — | ≤0.014% | ≤0.07% () | — | ≤0.014%★ |
| tshuaj arsenic | — | — | — | ≤2mg/Kg | ≤3mg/kg | — | ≤2mg/Kg |
| phthalic acid | — | — | — | dhau lawm | — | — | ≤100mg/kg★ |
| sulfate | ≤0.1% | — | — | ≤0.05% | — | — | |
| poob thaum ziab | — | — | ≤0.7% (dej noo) | ≤0.5% | ≤0.5% | ≤0.7% | ≤0.5% (dej noo) |
| mercury | — | — | — | — | ≤1mg/kg | — | — |
| ua tus thawj coj | — | — | — | — | ≤5mg/kg | ≤2.0mg/kg☆ | — |
| biphenyl | — | — | — | — | — | — | ≤100mg/kg★ |
| Qib/khoom | qib siab tshaj | qib siab tshaj plaws |
| tsos | dawb flaky khoom | dawb los yog daj daj me me uas ua rau tawv tawv |
| cov ntsiab lus,% ≥ | 99.5 | 99.0 |
| chromaticity ≤ | 20 | 50 |
| qhov chaw yaj, ℃ ≥ | 121 | |
Ntim: lub hnab polypropylene woven nrog lub hnab polythene sab hauv
Cov lus qhia ntim khoom: 25kg, 850 * 500mm
Vim li cas ho siv covbenzoic acidKev Ua Haujlwm ntawm Benzoic Acid:
(1) Txhim kho kev ua tau zoo ntawm npua, tshwj xeeb tshaj yog qhov ua tau zoo ntawm kev hloov pauv pub mis
(2) Tshuaj tiv thaiv; Tshuaj tua kab mob
(3) Feem ntau yog siv rau kev tiv thaiv kab mob fungal thiab antiseptic
(4) Benzoic acid yog ib qho tseem ceeb ntawm cov tshuaj preservatives pub mis
Benzoic acid thiab nws cov ntsev tau siv rau ntau xyoo ua cov tshuaj preservatives.
cov neeg sawv cev los ntawm kev lag luam zaub mov, tab sis nyob rau hauv qee lub tebchaws kuj yog cov khoom siv silage, feem ntau yog vim lawv muaj zog tiv thaiv ntau yam fungi thiab yeasts.
Lub sijhawm tshaj tawm: Lub Xya Hli-18-2024
