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Why after working with HNO 3 did a student noticed she had a yellow spot on her hand?
Wiki User
∙ 11y ago
Reaction with the kerotine in your skin, when nutralized, the yellow spots turn orange.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoHNO3 is Nitric Acid ^^
Its a very corrosive substance and the yellow spot is a burn which it leaves behind.
Wiki User
∙ 14y agoBecause it have a chemical called HM540 which causes a reaction to the your skin.. It can stay for a bout 2-3 months.
Wiki User
∙ 11y agobecause HNO3 when in contact with skin (which secretes proteins) will turn yellow.
Wiki User
∙ 11y agothe acid breaks down the protein
Wiki User
∙ 11y agoIt indicates she has protein on her hand.
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