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GB/T 2679.12-2013Paper and board - Qualitative analysis of mineral filler and mineral coating - Chemical method (English PDF)

纸和纸板无机填料和无机涂料的定性分析化学法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 17, 2013

Implementation date

December 1, 2014

Scope

GB/T 2679.12-2013 is the English-translated version of 纸和纸板无机填料和无机涂料的定性分析化学法.

GB/T 2679.12-2013 is the Chinese standard "Paper and board - Qualitative analysis of mineral filler and mineral coating - Chemical method". Its scope clause reads: This standard specifies the method for qualitative analysis of inorganic filler in paper and paperboard coatings and inorganic chemistry.

This standard applies to paper and paperboard qualitative analysis of inorganic filler and coating of paper processing inorganic coatings. Its clauses include reagents.

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Document preview — GB/T 2679.12-2013

National Standard of the People's Republic of China

ICS: 85.010
Classification: Y 30
Replacing: GB/T 2679.12-1993

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
4 Reagents
4.1 of concentrated hydrochloric acid
4.2 hydrochloric acid a 1
4.3 HCl
4.5 potassium dichromate (K2Cr2O7) solution
4.6 calcium hydroxide solution
4.7 iodine solution
4.8 Ammonium sulfate
4.9 of concentrated sulfuric acid
4.10 dilute sulfuric acid
4.11 solution of hydrogen peroxide (H2O2)
4.12 Barium chloride solution
4.13 potassium ferrocyanide solution
4.15 Test magnesium Spirit

1 Scope

This standard specifies the method for qualitative analysis of inorganic filler in paper and paperboard coatings and inorganic chemistry.

This standard applies to paper and paperboard qualitative analysis of inorganic filler and coating of paper processing inorganic coatings.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

Latitude and take samples to GB/T 450 paper and paperboard samples, positive and negative determination

Determination of GB/T 742 paper-making raw material, pulp, paper and paperboard ash

Principle 3

The sample was calcined (575 °C ± 25 °C) after, according to the residue (ash) content and the form of a preliminary identification of whether or not containing inorganic filler and no

Machine was paint. If containing an inorganic filler, and then the sample, the sample separation residue after ignition coating or chemical analysis, according to the technology

Chemical reaction phenomena or infrared spectra qualitative analysis filler or coating composition.

4 Reagents

Unless otherwise stated, during the test using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.

4.1 of concentrated hydrochloric acid

HCl (rho20 °C = 1.19g/mL).

4.2 hydrochloric acid a 1

1 (volume fraction).

4.3 HCl

c (HCl) ~2mol/L, the concentrated hydrochloric acid was dissolved in 15mL 75mL of water and dilute to 100mL.

4.4

Lead acetate paper, filter paper soaked in saturated lead acetate [Pb (C2H3O2) · 3H2O] solution, after removing dried spare.

4.5 potassium dichromate (K2Cr2O7) solution

4% (mass fraction).

4.6 calcium hydroxide solution

dissolving about 0.2g of calcium hydroxide [Ca (OH) 2] in 100mL of water and filtered.

4.7 iodine solution

c (1/2I2) ~0.1mol/L.

4.8 Ammonium sulfate

(NH4) 2SO4.

4.9 of concentrated sulfuric acid

H2SO4 (rho20 °C ~1.84g/mL).

4.10 dilute sulfuric acid

5% (mass fraction), 3mL of concentrated sulfuric acid was added to about 75mL of water and then diluted to 100mL.

4.11 solution of hydrogen peroxide (H2O2)

30% (mass fraction).

4.12 Barium chloride solution

10% (mass fraction).

4.13 potassium ferrocyanide solution

take 15g potassium ferrocyanide [K4Fe (CN) 6 · 3H2O] was dissolved in 1000mL of water.

4.14

Diphenlthiourea Kabbah hydrazone (also known as dithizone dithizone) solution, dissolve 10g two diphenylthiocarbazone in 100mL of carbon tetrachloride (CCl4) in.

4.15 Test magnesium Spirit

dissolve 0.5g of nitrobenzene resorcinol [4- (nitrophenylazo) resorci-nol] in 100mL1% hydroxide

GB/T 2678.2-2021 | GB/T 2679.1-2020 | GB/T 1541-2013 | GB/T 2679.6-2026 | GB/T 2679.17-2026 | GB/T 2679.14-2026 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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Editions of GB/T 2679.12

Edition	Title	Revision	Status
GB/T 2679.12-2013	Paper and board - Qualitative analysis of mineral filler and mineral coating - Chemical method	current edition	Current
GB/T 2679.12-1993	Paper and board - Qualitative analysis of mineral filler and mineral coating - Chemical method	previous edition	Superseded

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