benzoic acid yog dab tsi?
Thov xyuas cov ntaub ntawv
Khoom npe: Benzoic acid
CAS Nr .: 65-85-0
Cov mis mos molecular: C7H6O2
Khoom: Flaky lossis koob zoo 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 siab (kPa): 0.13 (96 ℃); flashing point (℃): 121; ignition kub (℃): 571; qis tawg txwv%(V/V): 11; Refractive Index: 1.5397nD
Dab tsi yog qhov tseem ceeb ntawm kev siv benzoic acid?
Main siv:Benzoic acidyog siv los ua bacteriostatic tus neeg sawv cev ntawm emulsion, tshuaj txhuam hniav, jam thiab lwm yam khoom noj; mordant ntawm dyeing thiab luam ntawv; nruab nrab ntawm cov tshuaj thiab dyes; rau kev npaj ntawm plasticizer thiab naj hoom; steel khoom antirust tus neeg sawv cev.
Main Performance index:
| Cov khoom txheem | Suav pharmacopoeia 2010 | British Pharmacopoeia BP 98-2009 | Tebchaws Asmeskas Pharmacopeia USP23-32 | Khoom noj khoom haus additive GB1901-2005 | E211 | FCCV | Khoom noj khoom haus additive NY/T1447-2007 |
| tsos | dawb flaky los yog koob zoo siv lead ua | dawb crystalline hmoov los yog dawb crystal hmoov | — | dawb siv lead ua | dawb crystal hmoov | dawb flaky los yog koob zoo crystal\ | dawb siv lead ua |
| kev xeem ntawv | dhau | dhau | dhau | dhau | dhau | dhau | dhau |
| qhuav hauv paus ntsiab lus | ≥99.0% | 99.0-100.5% | 99.5-100.5% | ≥99.5% | ≥99.5% | 99.5% -100.5% | ≥99.5% |
| hnyav tsos | — | meej, pob tshab | — | — | — | — | — |
| nkag oxidizable khoom | dhau | dhau | dhau | dhau | dhau | dhau | dhau ★ |
| yooj yim carbonizable khoom | — | tsis tsaus dua Y5 (daj) | tsis tsaus dua Q (pink) | dhau | dhau | dhau | — |
| hnyav hlau (Pb) | ≤ 0.001% | ≤10ppm | ≤10g / g | ≤ 0.001% | ≤10mg / kg | — | ≤ 0.001% |
| residue ntawm ignition | ≤0.1% | — | ≤ 0.05% | 0.05% | — | ≤ 0.05% | — |
| melting point | 121-124.5ºC | 121-124 ºC | 121-123ºC | 121-123ºC | 121.5-123.5ºC | 121-123 ℃ | 121-123 ℃ |
| chlorine compound | — | ≤300ppm | — | ≤ 0.014% | ≤0.07% () | — | ≤0.014% ★ |
| arsenic | — | — | — | ≤ 2mg / Kg | ≤ 3mg / kg | — | ≤ 2mg / Kg |
| phthalic acid | — | — | — | dhau | — | — | ≤100mg/kg ★ |
| sulfate | ≤0.1% | — | — | ≤ 0.05% | — | — | |
| poob ntawm ziab | — | — | ≤0.7% (nqus dej) | ≤ 0.5% | ≤ 0.5% | ≤ 0.7% | ≤0.5% (nqus dej) |
| mercury | — | — | — | — | ≤ 1mg / kg | — | — |
| coj | — | — | — | — | ≤ 5mg / kg | ≤2.0mg/kg ☆ | — |
| biphenyl | — | — | — | — | — | — | ≤100mg/kg ★ |
| Qib / yam | qib premium | qib sab saum toj |
| tsos | dawb flaky khoom | dawb los yog lub teeb daj flaky khoom |
| cov ntsiab lus, % ≥ | 99.5 ua | 99.0 ua |
| chromaticity ≤ | 20 | 50 |
| melting point, ℃ ≥ | 121 | |
Ntim: woven polypropylene hnab nrog puab polythene zaj duab xis hnab
Ntim specification: 25kg, 850 * 500mm
Yog vim li cas siv lubbenzoic acid? Benzoic Acid muaj nuj nqi:
(1) Txhim khu kev ua tau zoo ntawm npua, tshwj xeeb tshaj yog kev ua tau zoo ntawm kev hloov pauv pub
(2) Preservative; Antimicrobial tus neeg sawv cev
(3) Feem ntau yog siv rau tshuaj tua kab mob thiab tshuaj tua kab mob
(4) Benzoic acid yog ib qho tseem ceeb acid hom pub preservative
Benzoic acid thiab nws cov ntsev tau siv ntau xyoo los ua cov tshuaj tiv thaiv
cov neeg sawv cev los ntawm kev lag luam zaub mov, tab sis nyob rau hauv qee lub teb chaws kuj yog silage additives, feem ntau yog vim lawv muaj zog tiv thaiv ntau yam fungi thiab poov xab.
Post lub sij hawm: Lub Xya hli ntuj-18-2024
