Tono:
1. Since sodium hydrosulfite does not contain heavy metals, the color of the bleached fabric is very bright and not easy to fade.

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3. I roto i te mara o te whakahiato, ka whakamahia te konutai hydrosulfite hei kaihoko ki te whakatipu i nga waikano me nga rongoa, ina koa ko te kaihoko miihini mo te pepa penupenu rakau.

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Tana mate
Sodium dithionite is a first-class flammable item when wet according to national standards. Ka raru tonu ka uru atu ki te wai, te whakaputa i nga hau totika penei i te hydrogen sullide me te whanariki hauota, me te tuku i te wera nui. The reaction equation is: 2Na2S2O4+2H2O+O2=4NaHSO3, and the products further react to produce hydrogen sulfide and sulfur dioxide. Sodium dithionite has an intermediate valence state of sulfur, and its chemical properties are unstable. It shows strong reducing properties. Ka tutaki te waikawa o te waikawa, penei i te waikawa sulfuric, te waikawa perchloric, te waikawa pasphoric me etahi atu o te mate pukupuku. Its reaction equation is: 2Na2S2O4+4HCl=2H2S2O4+4NaCl

Sodium dithionite has a spontaneous combustion point of 250℃. Na te mea ko tona ahua iti, he mea tino nui te karaehe-akomanga (ko te waahi whakauru i raro iho i te 300 ℃, ko te Flash Point of Lown Point Point kei raro iho i te 100 ℃). It is very easy to burn when exposed to heat, fire, friction and impact. The combustion speed is fast and the fire hazard is high. The gas hydrogen sulfide gas produced during the combustion process may also cause a larger combustion area, increasing its fire hazard.

Sodium dithionite is a light yellow powdery substance. The powdery substance is easy to form an explosive mixture in the air. Dust explosion occurs when encountering a fire source. The mixture of sodium dithionite and most oxidants, such as chlorates, nitrates, perchlorates, or permanganates, is explosive. Ahakoa i te aroaro o te wai, ka puhipuhi i muri i te ngoikore o te hau, otira i muri mai i te huringa waiariki, ka nui ake te kino o te pahūtanga.