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ngwaahịa

Melamine CAS 108-78-1

Ngwongwo kemịkalụ:

Usoro ihe omimi C3H6N6
Molar Mass 126.12
Njupụta 1.573
Ebe Na-agbaze > 300 Celsius C (ọkụ ọkụ)
Ebe Boling 224.22C (atụmatụ siri ike)
Ebe mgbari >110°C
Mmiri Solubility 3 g/L (20ºC)
Solubility Obere ego na-agbaze na mmiri, ethylene glycol, glycerol na pyridine. Na-agbaze ntakịrị na ethanol, nke na-adịghị edozi na ether, benzene, carbon tetrachloride.
Uzuoku nrịbama 66.65hPa (315 Celsius)
Ọdịdị Crystal monoclinic ọcha
Agba Ọcha
Merck 14,5811
BRN 124341
pKa 5 (na 25 ℃)
PH 7-8 (32g/l, H2O, 20℃)
Ọnọdụ Nchekwa enweghị mgbochi.
Nkwụsi ike Kwụsie ike. Ekwekọrịtaghị na acid siri ike, ndị ọrụ oxidizing siri ike. Enweghị ọkụ.
Mmetụta Na-amịkọrọ mmiri ngwa ngwa
Ntụgharị ntụgharị uche 1.872
MDL MFCD00006055
Njirimara anụ ahụ na kemịkalụ njupụta 1.573
ebe mgbaze 354°C
mmiri soluble 3g/L (20°C)
Jiri Bụ isi akụrụngwa maka imepụta melamine formaldehyde resin

Nkọwa ngwaahịa

Mkpado ngwaahịa

Koodu ihe egwu R43 - nwere ike ịkpata nghọta site na kọntaktị akpụkpọ ahụ
R44 - Ihe ize ndụ nke mgbawa ma ọ bụrụ na ekpo ọkụ n'okpuru njide
R20/21 - na-emerụ ahụ site na iku ume na kọntaktị na akpụkpọ ahụ.
Nkọwapụta nchekwa 36/37 - Yiri uwe nchebe kwesịrị ekwesị na uwe aka.
NJ UN 3263
WGK Germany 1
RTECS OS0700000
TSCA Ee
Koodu HS 29336980
Otu nkwakọ ngwaahịa III
Nsi LD50 ọnụ na oke bekee: 3161 mg / kg LD50 dermal oke bekee> 1000 mg / kg

 

Okwu mmalite

Melamine (usoro kemịkalụ C3H6N6) bụ ngwakọta organic nke nwere njirimara na ojiji dị iche iche.

 

Ogo:

1. Njirimara anụ ahụ: Melamine bụ kristal na-enweghị ụcha siri ike nke nwere nnukwu agbaze na isi ihe.

2. Chemical Njirimara: Melamine bụ ihe siri ike nke na-adịghị mfe ire ere na ụlọ okpomọkụ. Ọ na-agbaze na mmiri na ụfọdụ ihe mgbaze organic dị ka methanol na acetic acid.

 

Jiri:

1. N'ime ụlọ ọrụ, a na-ejikarị melamine eme ihe dị ka ihe eji eme ihe maka resins sịntetik, dị ka acrylic fiber, phenolic plastics, wdg. Ọ nwere ezigbo okpomọkụ na nguzogide kemịkalụ.

 

2. A pụkwara iji melamine mee ihe dị ka ọkụ ọkụ, ihe eji esiji ákwà, pigmenti na ihe mgbakwunye akwụkwọ.

 

Usoro:

Nkwadebe nke melamine na-emekarị site na mmeghachi omume nke urea na formaldehyde. Urea na formaldehyde na-emeghachi omume n'okpuru ọnọdụ alkaline iji mepụta melamine na mmiri.

 

Ozi nchekwa:

1. Melamine nwere obere nsí ma nwee mmetụta dị nta na ụmụ mmadụ na gburugburu ebe obibi.

 

3. Mgbe ị na-eji ma na-echekwa melamine, zere kọntaktị na akpụkpọ ahụ na anya, ma yiri gloves nchebe na enyo anya ma ọ dị mkpa.

4. N'ebe mkpofu ahịhịa, ekwesịrị ịgbaso iwu na ụkpụrụ dị mkpa iji zere mmetọ gburugburu ebe obibi.


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