Thiourea 99

Lub npe lag luam: thiourea
CAS Naj Npawb: 62-56-6
Lub cev lub cev: tsis muaj xim lossis dawb crystalline lossis crystalline hmoov
EINECS:200-543-5
Cov tshuaj formula: CH4N2S
Ntim: 25KG / hnab

Xa kev nug

Thiourea

Lub cev thiab tshuaj lom neeg cov khoom ntawm thiourea 99: Dawb los yog lub teeb daj glossy flake, columnar los yog koob zoo li tus crystals nrog ib tug iab saj. Soluble nyob rau hauv dej thiab ethanol, yuav luag insoluble nyob rau hauv ether.

Stability thiourea 99: ruaj khov. Incompatible nrog muaj zog acids, bases, oxidants, hlau ntsev, proteins, thiab hydrocarbons. Tej zaum yuav hnov mob hnyav nrog acrolein.

Qeb: Tshuaj lom

Toxicity classification: heev toxic

Mob toxicity: qhov ncauj - nas LD50: 125 mg / kg; Kabmob plab nas LD50: 100 mg/kg

Cov ntaub ntawv txhawb nqa: Qhov muag Luav 14% Nruab Nrab

Cov yam ntxwv muaj kev phom sij: Cov tshuaj lom sulfur oxide thiab nitrogen oxide gases raug tso tawm thaum cua sov

Kev khaws cia thiab kev thauj mus los yam ntxwv: ventilated thiab low-temperature dry warehouse; Cais cia thiab kev thauj mus los ntawm cov khoom siv raw khoom

Extinguishing agent: dej, carbon dioxide, xuab zeb, ua npuas ncauj

Txoj kev tsim khoom:

Cov ntaub ntawv ntseeg tau

Absorb hydrogen sulfide nrog txiv qaub kua txiv nyob rau hauv lub siab tsis zoo thiab txias los tsim ib tug calcium sulfide tov. Calcium sulfide reacts nrog calcium cyanamide kom tau txais cov tshuaj thiourea. Tom qab filtration, concentration, txias, crystallization, thiab ziab, ntshiab thiourea tau txais.

Yam khoom	SPECIFICATION
Purity (CH4N2S)	99% min
Loss On Cua sov (H2O)	0.4% max
Tshauv	0.1% max
Dej-Insoluble Matter	0.02% max
Rhodonide (raws li CNS)	0.02% max
Melting Point	171 degree min

Lub hom phiaj ntawm thiourea 99:

Analytical reagents. Siv rau kev txiav txim siab ntawm bismuth, osmium, rhodium, selenium, lead, tellurium, nitrite, thiab lwm yam. Txiav txim siab lub complexation qhia ntawm osmium.

ethylene thiourea