Sodium Sulfate rau Dyeing hauv Bangladesh

Tshuaj Formula

Na2SO4

Molecular Luj

142.04214

Kev ruaj ntseg

ruaj khov. Incompatible nrog muaj zog acids, aluminium, magnesium, muaj zog hauv paus. Hygroscopic.

Cov khoom qhia

Bangladesh yog lub ntiaj teb thib ob tus xa khoom loj tshaj plaws ntawm kev npaj-rau-hnav. Txhua lub npe nrov European khaub ncaws, nrog rau feem ntau cov Japanese npaj-rau-hnav hom, muaj ib lub zos foundry.

Sodium sulfate rau dyeing nyob rau hauv Bangladesh rau paj rwb dyeing, xws li ncaj dyes.

Thaum dyeing paj rwb nrog ncaj dyes, sulfur dyes, vat dyes, thiab indigo dyes, sodium sulfate rau dyeing nyob rau hauv Bangladesh raws li ib tug dye accelerator.

Cov dyes yog yooj yim yaj nyob rau hauv lub npaj dye cawv tab sis tsis yooj yim rau dye paj rwb fibers. Vim tias cov dyeing tsis yooj yim rau kev tso tawm, muaj ntau cov dye seem nyob rau hauv ko taw dej.

Ntxiv sodium sulfate rau dyeing nyob rau hauv Bangladesh tuaj yeem txo cov solubility ntawm cov dyeing hauv dej, yog li ua kom cov xim muaj zog ntawm cov dyeing. Nyob rau hauv txoj kev no, tus naj npawb ntawm cov dye siv yuav raug txo, thiab cov xim dyed tuaj yeem sib sib zog nqus.

Xwm

Dawb orthogonal biconical crystalline los yog crystalline hmoov. Nws muaj iab, qab ntsev thiab tsis muaj ntxhiab tsw. Lub melting point yog hais txog 800 degree (d2.7). Nws yog hygroscopic thiab yooj yim absorbs peb molecules ntawm dej nyob rau hauv cov huab cua ntub.

Soluble hauv dej thiab glycerol, insoluble hauv ethanol. Cov tshuaj aqueous yog nruab nrab. Solubility yog siab tshaj ntawm 33 degree (1: 2) thiab txo qis ntawm qhov kub thiab txias. Nws yog soluble hauv 2.4 qhov chaw ntawm dej ntawm 100 degree. Thaum cov tshuaj aqueous qis dua 32.38 degree, nws crystallizes tawm li decahydrate thiab siab dua 32.38 degree. Lub crystallization ntawm anhydrous sodium sulfate pib ntawm 38 degree.