diamine black BH

noun, often capitalized D&B

Definition of diamine black BH

: a direct blue disazo dye that can be converted into a navy blue or black developed dye on the fiber

called also developed black BH

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“Diamine black BH.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diamine%20black%20BH. Accessed 25 Oct. 2020.

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