Hydroquinone for Industrial Use

1 Model

This standard specifies the technical requirements, test methods, inspection rules and standard volumes of p-phenylene dibenzoate for industrial use, packaging, transportation, storage and use.

This standard applies to the production, picking up and marketing of p-phenylene dibonderyl for industrial use, which is produced by phenol hydroxylation or aniline method.

Molecular formula; α H' 0

Relative molecular mass, 11011 〈According to 20°7 International Relative Atomic Mass)

2 Engraving documents

The following documents have been cited in this standard and become the standard.

However, the parties to the agreement on the completion of the standard are encouraged to study the possibility of using these documents.

However, the parties to this standard are encouraged to study whether the new version of the pallbearers can be used, and the latest version is applicable to this standard.

GB190 Marking of dangerous goods packaging

GB/T601-2002 Chemical water chestnut reagent Preparation of plutonium quasi-titration solution

CB/T602-2002 Preparation of the standard titration solution for the test of chemical sins and impurities (IS063531:19g9,NEQ)

G″T'03-2002 chemical test brakes test methods used in the preparation of the preparation of wattle and crystal <Is0 robin l:198z,NEQ)

GB/T617-2006 Chemical reagents melting point of the method used to determine

GB/T1250 The limit of the value of the representation and determination method

GB/T∞ 78-2003 Chemical production insecurity sampling rules

CB/T"g ~ 2 ° 03 solid chemical products sampling general rules

GB/T tribe 82-2008 analytical experimental water gusset and test-snout method (1so36 Úã; 1987, M0D〉)

3 Ball

31 Appearance: Excellent line product is self-colored or nearly self-colored solid, qualified crystal is white or light-colored pigment.

32 Industrial paraben shall conform to the technical requirements shown in Table I.

Table l Technical requirements

Gall Item