樟脑

Logwood（Haematoxylum campechianum）是豆科植物Fabaceae中的一种开花树种，原产于墨西哥南部和中美洲北部，在经济上仍然具有重要意义，并且在较小程度上仍然具有重要意义。 The modern nation of Belize grew from 17th century English logwood logging camps.伯利兹这个现代国家来自XNUMX世纪的英国伐木营地。 The tree's scientific name means "bloodwood" (haima being Greek for blood and xulon for wood).该树的学名意为“血木”（haima是希腊语，代表血液，xulon代表木材）。
Logwood长期用作天然染料，至今仍是苏木精的重要来源，苏木精在组织学中用于染色。 The bark and leaves are also used in various medical applications.树皮和树叶也用于各种医疗应用。 In its time, logwood was considered a versatile dye, and was widely used on textiles but also for paper.The dye's colour depends on the mordant used as well as the pH.原木在当时被认为是一种多用途染料，被广泛用于纺织品和纸张，染料的颜色取决于所用媒染剂和pH值。 It is reddish in an acidic environments but bluish in alkaline ones.在酸性环境中微红，在碱性环境中微蓝。