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YS/T 534.4-2007 English PDF

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YS/T 534.4-2007: Chemical analysis methods of aluminium hydroxide. Part 4: Determination of iron oxide content. Orthophenanthroline photometric method
Status: Valid

YS/T 534.4: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YS/T 534.4-2007	English	199	Add to Cart	3 days [Need to translate]	Chemical analysis methods of aluminium hydroxide. Part 4: Determination of iron oxide content. Orthophenanthroline photometric method	Valid	YS/T 534.4-2007
YS/T 534.4-2006	English	239	Add to Cart	2 days [Need to translate]	Chemical analysis methods of aluminium hydroxide. Determination of ferric oxide content. Orthophenanthroline photometric method	Obsolete	YS/T 534.4-2006

PDF similar to YS/T 534.4-2007

Standard similar to YS/T 534.4-2007

GB/T 7999 YS/T 600 GB/T 14849.2 YS/T 872 YS/T 420 YS/T 535.11

Basic data

Standard ID	YS/T 534.4-2007 (YS/T534.4-2007)
Description (Translated English)	Chemical analysis methods of aluminium hydroxide. Part 4: Determination of iron oxide content. Orthophenanthroline photometric method
Sector / Industry	Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H12
Classification of International Standard	71.060.40
Word Count Estimation	6,654
Date of Issue	2007-11-14
Date of Implementation	2008-05-01
Older Standard (superseded by this standard)	YS/T 534.4-2006
Regulation (derived from)	NDRC Notice No. 77 of 2007
Issuing agency(ies)	National Development and Reform Commission
Summary	This standard specifies the aluminum hydroxide ferric oxide content determination. This standard applies to aluminum hydroxide ferric oxide content. Measuring range: 0. 003% 0. 065%.

YS/T 534.4-2007: Chemical analysis methods of aluminium hydroxide. Part 4: Determination of iron oxide content. Orthophenanthroline photometric method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Chemical analysis methods of aluminium hydroxide.Part 4. Determination of iron oxide content.Orthophenanthroline photometric method ICS 71.060.40 H12 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 534.4-2006 Methods for chemical analysis of aluminum hydroxide Part 4. Determination of iron oxide content Phenanthroline spectrophotometry Posted 2007-11-14 2008-05-01 implementation National Development and Reform Commission issued

Foreword

YS/T 534-2007 "chemical analysis of aluminum hydroxide" is YS/T 534-2006 (formerly GB/T 6610-2003) amendments It is divided into five parts. --- Part 1. Determination of moisture content - Gravimetric method --- Part 2. loss on ignition - Gravimetric method --- Part 3. Determination of silica content molybdenum blue photometric --- Part 4. Determination of iron oxide content phenanthroline spectrophotometry Determination of sodium oxide content. Part 5 --- This is Part 4. The partial replacement of YS/T 534.4-2006 (formerly GB/T 6610.4-2003). This part is YS/T 534.4-2006 "Chemical analysis methods of aluminum hydroxide - Part 4. iron oxide content - o - Phenanthroline photometric "editorial finishing. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This part of the Aluminum Corporation of China Zhengzhou Research Institute is responsible for drafting. This section drafted by the Aluminum Corporation of China Guizhou Branch. The main drafters of this section. Wang Baosheng, with Zu. This part of the standard replaces the previous editions are. --- YS/T 534.4-2006 (formerly GB/T 6610.4-2003). Methods for chemical analysis of aluminum hydroxide Part 4. Determination of iron oxide content Phenanthroline spectrophotometry

1 Scope

This section provides the determination of aluminum hydroxide iron oxide content. This section applies to the determination of aluminum hydroxide, iron oxide content. Measurement range. 0.003% to 0.065%.

2 principle of the method

With hydroxylamine hydrochloride ferric reduced to ferrous iron in acetic acid - sodium acetate buffer solution, and phenanthroline form complexes in spectrophotometric Meter measuring the absorbance at a wavelength of 510nm.

3 Reagents

3.1 boric acid. pure class distinctions. 3.2 anhydrous sodium carbonate. pure class distinctions. 3.3 nitric acid (3.00mol/L). 3.4 HCl (1 + 1). 3.5 hydroxylamine hydrochloride solution (10g/L). 3.6 phenanthroline solution (1g/L). Weigh 1g phenanthroline dissolved in 1.5mL ~ 2.5mL glacial acetic acid (ρ = 1.05g/mL), Moved into 1000mL volumetric flask, dilute with water to volume, and mix. 3.7 buffer solution (pH4.9). Weigh 272g of sodium acetate (CH3COONa · 3H2O) were dissolved in 500mL of water, 240mL of ice was added Acetic acid (ρ = 1.05g/mL), diluted with water to 1000mL, and mix. 3.8 ferric oxide standard stock solution. Weigh 0.5000g when ferric oxide [(Fe2O3) ≥99.99%, previously at 600 ℃ burning Burning 2h, and (4.4) to cool to room temperature in a desiccator] 150mL beaker is placed along the vessel wall was added 40mL of hydrochloric acid (3.4), cover sheet pan, So that all micro heat to dissolve, cooled to room temperature, the solution is transferred 1000mL volumetric flask, beaker with water wash, lotion incorporated into the flask with water Dilute to volume, and mix. 1mL 0.5mg solution containing ferric oxide. Ferric oxide 3.9 Standard Solution. Pipette 25.00mL iron sesquioxide standard stock solution (3.8) in 500mL volumetric flask. 30.0mL nitric acid (3.3), dilute to the mark and mix. This solution 1mL containing 0.025mg ferric oxide, formulated with time.

4 Instrument

4.1 platinum crucible. 30mL, with cover. 4.2 Spectrophotometer. 4.3 Electric board. The regulator can control the heating temperature no higher than 250 ℃. 4.4 dryer. with a new activated alumina desiccant.

5 Sample

The sample was ground with a mortar through 150μm sieve drying 2h at 110 ℃ ± 5 ℃, placed in a desiccator, cool reserve.

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