Aha aha: 4-Hydroxybenzaldehyde

p-Hydroxybenzaldehyde;

PHBA;

CAS Mba.: 123-08-0

Usoro Molekụl: C7H6O2

Molekụla ibu: 122.1213

Nhazi usoro:

Njupụta: 1.226g / cm3

Jiri:Ọ dị mkpa ngwaahịa kemịkal dị mma na nke etiti maka njikọta njikọta, yana iji ọgwụ, aromatizer, pesticide, electroplating na ụlọ ọrụ kristal mmiri. Na ụlọ ọrụ ọgwụ, enwere ike iji ya mepụta etiti nke sulfonamides dị ka ụlọ ọrụ sterilization sara mbara TMP, ampicillin na ọkara nke penicillin (ọnụ) yana nke d - (-) - p-hydroxy phenyl picramate. Na ụlọ ọrụ aromatizer, a na-ejikarị ya eme ihe na ketone, methyl vanillin, ethyl vanillin, anisic aldehyde na nitrile aromatizer. Na ụlọ ọrụ na-egbu ihe, a na-ejikarị ya eme ihe iji mepụta ọgwụ ahụhụ ọhụrụ, ọgwụ ọkụ, o-bromobenzonitrile na hydroxyl casoron. Na electroplating ụlọ ọrụ, ọ ga-eji dị ka a ọhụrụ-ụdị cyanogens-free electroplating brightener.

1.There bụ ọtụtụ usoro maka mmepụta nke p-hydroxybenzaldehyde. Ka ọ dị ugbu a, mmepụta ihe eji eme ihe gụnyere phenol, p-cresol, p-nitrotoluene na ngwaọrụ ndị ọzọ.

2.The phenol usoro nwere ike kere n'ime Reimer Tiemann mmeghachi omume, gattermann mmeghachi omume, phenol Trichloroacetaldehyde ụzọ, phenol glyoxylic acid ụzọ, phenol formaldehyde ụzọ, wdg Phenol usoro e ji mfe nnweta ngwaọrụ, mfe n'ichepụta usoro, ala mkpụrụ na elu ego.
Usoro nke p-nitrotoluene iji mepụta p-hydroxybenzaldehyde gụnyere usoro atọ: oxidation-Mbelata, diazotization na hydrolysis.

3.P-cresol catalytic oxidation usoro a bụ kpọmkwem oxidize p-cresol ka p-hydroxybenzaldehyde na ikuku ma ọ bụ oxygen n'okpuru ihe nke mmegharị.

Usoro usoro a kapịrị ọnụ dị ka ndị a: tinye p-cresol, sodium hydroxide na methanol n'ime arịa igwe anaghị agba nchara, bido ruo mgbe etisasịwo ya, tinye cobalt acetate iji mechie chernobyl ahụ, bulie ogo 55 ℃ ma bido iwebata oxygen, debe nrụgide n'ime arịa ahụ na 1.5MPa ma meghachi omume maka 8-10h, na-achịkwa oke ikuku oxygen na usoro mmeghachi omume, ma wụnye sistemụ ikuku dị n'ime ụgbọ, mgbe ọnọdụ okpomọkụ na-ebili, jaket a ga-enye arịa ahụ Enwere ike ijikọta mmiri jụrụ oyi. N'oge a, eriri igwe ahụ ga - amalite ijikọ ya na mmiri jụrụ oyi, na - ejikwa oke ikuku oxygen, ma na - edebe ọnọdụ okpomọkụ na ketulu n'ihe dị ka 60℃. Ná ngwụsị nke mmeghachi omume, a na-etinye ihe n'ime isi autoclave, ihe mgbaze methanol na-apụ ma na-emegharị ya, na-agbakwunye acid hydrochloric mgbe a gbakwunye mmiri maka salting. A na-ehichapụ ihe mmiri mmiri ahụ siri ike site na centrifuge, na ihe siri ike enwetara na-akpọnwụ na ọkụ ọkụ na ihe dị ka 60℃ maka 3-5h, mgbe ahụ p-hydroxybenzaldehyde nwere ọdịnaya karịa 98% nwere ike nweta.