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Because oven cleaner contains Sodium Hydroxide (Na OH), a 'strong' alkali/base, to dissolve the grease, it would change Universal Indicator a deep blue/purple colour.

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Wiki User

14y ago
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Wiki User

11y ago

Red and if you want to make your own indicator you could use red cabbage (truly works)

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Wiki User

6y ago

Using the pH-paper Merck art. 9565 the color is brick-red.

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Lewis vB

Lvl 2
4y ago

red

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Anonymous

Lvl 1
4y ago

purple

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Anonymous

Lvl 1
4y ago

Dark Purple

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Anonymous

Lvl 1
3y ago

red

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Anonymous

Lvl 1
3y ago

colourless

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