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Petroleum crude naphthalene

The product is appropriate to be used in dyeing, plastic and pharmaceutical industry for the production of naphthalene acid and so on. It also can be used for the production of penetrant and dispersing agent.

 

item/index

top grade

second grade

analytical method

appearance

piece or powder light yellow crystalline

visual inspection

naphthaline content (m/m),%≥

95

94

chromatography

nonvolatile matter(m/m),% ≤

0.04

0.06

GB/T6701

ash specification(m/m),%≤

0.01

0.02

GB/T508

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