Sodium Cyanide: Kunzwisisa Mashandisiro Ayo, Zvivakwa, uye Chengetedzo Yekuchengetedza

I. Kutanga

Sodium cyanide (kemikari formula: NaCN) muchetura wakanyanya inorganic compound inoita basa rakakosha muindasitiri nesainzi yekutsvagisa minda. Nekudaro, nekuda kwekukwirira kwayo Toxicity uye njodzi dzinogona kuitika, zvakakosha kuve nekunzwisisa kwakaringana uye kuishandisa zvakachengeteka. Chinyorwa ichi chichazvisuma kubva pazvinhu zvitatu: tizvishandise, Properties, uye Safety Tsaona, zvichibatsira vaverengi kuti vave nekunzwisisa kwakakwana kwekemikari yakakosha iyi.

II. Kushandiswa kweSodium cyanide

1.Metal Processing uye Metallurgy

• electroplating: Seimwe yezvikamu zvemhinduro ye electroplating, Sodium Cyanide inogona kubatsira kugadzira yunifomu uye dense coating (yakadai segoridhe, sirivha, mhangura, nezvimwewo) pamusoro pesimbi.

• Kuchera Goridhe: Mukuita cyanidation yekubvisa goridhe, sodium cyanide inonangana negoridhe kuumba chinhu chinonyungudika, nokudaro ichipatsanura goridhe kubva pane dombo.

2.Organic Synthesis

• Inoshandiswa kugadzira cyanides, mishonga yepakati (yakadai sevhitamini B1), madhayi, mishonga yezvipembenene, nezvimwe.

• Seye nucleophilic reagent mu organic synthesis, inotora chikamu mune zvakasiyana siyana zvemakemikari maitiro.

3.Laboratory Applications

• Inoshandiswa seye analytical reagent (sekutemerwa kwesimbi ions se cobalt nemhangura), kana sechinhu chinokonzeresa mukuedza chaiko.

III. Zvinhu zveSodium Cyanide

1.Physical Properties

• Kuonekwa: Makristasi machena kana hupfu, izvo zviri nyore kuparara.

• Solubility: Inonyungudika nyore mumvura, uye mvura ine mvura ine alkaline yakasimba; inonyungudika zvishoma mu ethanol.

• Melting Point: Inenge 563.7°C, uye painofashaira inenge 1496°C.

2.Chemical Properties

• Toxicity: Muchetura zvakanyanya. Chirwere chinouraya chemuromo chinenge 1 - 2 mg / kg (yevakuru).

• Reactivity: Inopindirana nemaasidhi kugadzira muchetura wehydrogen cyanide (HCN) gasi; inogona kukonzera kuita kwechisimba kana ikasangana nemaoxidants akasimba.

• Kuramba: Yakagadzikana mumhepo yakaoma, asi inozoora zvishoma nezvishoma kana yaiswa mumvura kana mhepo yakanyorova, ichiburitsa gasi rine muchetura.

IV. Chengetedzo Yekuchengetedza

1.Toxicity Mechanism uye Njodzi

• Kuityisa kwe Sodium cyanide inobva ku cyanide ion (CN⁻) inobudisa, iyo inogona kuvharidzira ma enzymes ekufema, zvichiita kuti tishu hypoxia uye, mumatambudziko akaoma, rufu.

• Acute Poisoning Zviratidzo: Musoro, kusvotwa, dyspnea, kuvhiringidzika, uye kunyange kugwinha uye kusungwa kwemoyo.

2.Protection Measures

• Kudzivirirwa Kwemunhu: Pfeka zvipfeko zvekudzivirira, magirovhosi, magirazi, uye shandisa chifukidziro chegasi (ine sefa cartridge).

• Kushanda Kwemamiriro ekunze: Shanda mufume hood kana yakavharwa system kudzivirira kupararira kweguruva.

3.Kuchengetedza uye Kutakura

• Yakavharwa Storage: Chengeta munzvimbo yakaoma uye inotonhorera, kure nemaasidhi, oxidants, uye chikafu.

• Kuisa Mazita uye Yambiro: Mugaba unofanira kunyorwa mavara echenjedzo akadai sekuti "Highly Toxic" uye "Corrosive".

4.Emergency Treatment

• Leakage Treatment: Pfeka midziyo yekudzivirira, vhara zvinhu zvadeuka nejecha kana zvinhu zvine inert, uye dzivirira kubata zvakananga.

• First Aid yePoisoning: Kurumidza kutamisa munhu ane chepfu kunzvimbo ine mhepo yakachena, chengetedza nzira yekufema, tsvaga kurapwa nekukurumidza, uye zivisa vashandi vezvokurapa nezvechinhu chine chepfu.

5.Kuenderana neMitemo

• Sodium cyanide ikemikari ine ngozi inodzorwa nehurumende. Izvo zvinodikanwa kutevedzera Mitemo pamusoro peKuchengetedzwa Kwekuchengetedza Kwengozi Kemikari, uye mvumo inodiwa pakufambisa kwayo uye kushandiswa.

V. Nyaya Yambiro

Muchiitiko chekuputika kweTianjin Port muna 2015. kubuda kwe sodium cyanide kwakakwezva kutarisa kwakapararira, kuratidza migumisiro yakakomba yekusachengeta uye kutarisira kusina kunaka. Chiitiko ichi chinoshanda sechiyeuchidzo chokuti chero kuregeredza kunogona kutungamirira kumigumisiro ine ngozi, uye tinofanira kugara tichichengetedza hukuru hwekuchenjerera.

VI. Mhedziso

Sodium cyanide "munondo unocheka kaviri". Kushandisa kwayo zvine musoro kunogona kusimudzira kufambira mberi kweindasitiri, asi kana chengetedzo ikaregeredzwa, inogona kutungamirira kunjodzi. Kunzwisisa mashandisiro ayo, zvivakwa, uye mitemo yekuchengetedza ibasa remunhu wese anosangana nazvo. Chete nekuibata nesainzi uye kutora matanho ekudzivirira akasimba tinogona kuve nechokwadi chekuchengetedzwa kwemunhu uye hutano hwezvakatipoteredza.