This standard specifies the technical requirements, test methods, inspection rules, packaging and marking of chemical reagent manganese sulfate monohydrate. This standard applies to the inspection of chemical reagent manganese sulfate monohydrate. GB/T 15899-1995 Chemical reagent manganese sulfate monohydrate (manganese sulfate) GB/T15899-1995 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Chemical reagent
Manganese sulfate monohydrate (manganese sulfate)
Chemical reagent
Manganese sulfate monobydrate This reagent is light pink powdery crystals, soluble in water, insoluble in ethanol. Formula: MnSO. ·H,O
Relative mass: 169.02 (according to the 1991 international relative atomic mass) 1 Subject content and applicable scope
GB/T 15899--1995
This standard specifies the technical requirements, test methods, inspection rules and packaging and labeling of the chemical reagent manganese sulfate monohydrate. This standard applies to the inspection of the chemical reagent manganese sulfate monohydrate. 2 Reference standards
GB/T 601
GB/T 602
GB/T 603
GB/T619
GR/T 6682
GB/T 9723
GB/T 9729
GR/T 9738
HG 3—119
3 Technical requirements
Chemical reagents
Chemical reagents
Chemical reagents
Chemical reagents
Preparation of standard solutions for titration analysis (volume analysis) Preparation of standard solutions for impurity determination
Preparation of preparations and products used in test methods Sampling and acceptance rules
Specifications and test methods for water used in analytical laboratories Chemical reagents General rules for flame atomic absorption spectrometry Chemical reagents
Chemical reagents
Chemical Reagents
General method for determination of chloride
General method for determination of water-insoluble matterwww.bzxz.net
Packaging and marking
3.1 Content of manganese sulfate monohydrate (MnSO.·HO): Analytical pure -
Hua Xue pure·
3.2 Maximum impurity content:
Water insoluble matter
Chloride (C1)
Iron (Fe)
Approved by the State Bureau of Technical Supervision on December 20, 1995 299.0%;
298. 0%.
Analytically pure
Chemically pure
1996-08-01Implementation
Xue (Za)
Heavy metals (as Fb)
Ammonium precipitate (as sulfate) Reduction of high-acidity inhibitory substances
4 Test method
G3/T 15899-
Chemical line
In this test method, except for the standard titration solution, impurity standard, preparation and product, all are prepared in accordance with the provisions of GIB/T 6(1, CB/T602 and GB/T603: The experimental water should comply with GB/T66821 grade water. Determination of manganese sulfate monohydrate (MnSOHO) content 4.
Weigh 0.2 g of sample, accurate to 0.000 1 g, dissolve in 100.mL water, 0.1 Anti-corrosion, use ethylenediaminetetraacetic acid disodium standard titration solution_c (EDTA) = 0.05mnl/1. Titrate to the end point of about 1ml, add ammonium chloride buffer solution (p tablets 10) and 5 drops of black indicator solution (5g/1.), continue to titrate the millichloriant from purple to red. The content of manganese sulfate hydrate is calculated as follows.
VcX0.1690
The mass percentage of sulfuric acid monohydrate
In the formula, the sample consumes 2-amine of disodium diaminetetraacetic acid standard titration solution
5. 169---with 1, 4.2 Determination of impurities
Weigh the sample
4.2.1 Water insoluble matter
Weigh 25g of the sample, add
acid standard titration solution
disodium diaminetetraacetic acid standard titration
acid standard titration solution ... g sample, dissolve in 20 ml of standard water. After (filter if necessary), take the following amount of chloride-containing standard material according to GB/T standard, minus analytical pure chemical pure - and treat it in the same way as the sample. Q.05 rigCl
, equivalent, expressed in grams
of No. 4 Bo Nao filter exhaustion,
according to GB/T9738?
definition. The solution is not too strong
weigh 1g of the sample, dissolve it in 25mL of water, add 1ml of hydrochloric acid, 30mg of ammonium persulfate and 2mL of ammonium sulfate solution (250g/), shake well, and extract with 1Cml of normal alcohol. The red color of the organic layer shall not be darker than the standard. The standard is to take the impurity standard solution containing the following amount of iron: 2
and treat it in the same way as the test evaluation time
analytical pure -
Huaxue pure
according to (G13/ 9723, where: 4.2.4.1 Instrument conditions
Light source: nickel hollow cathode lamp
Wavelength: 232.0am
Flame: acetylene·air.
4.2. 4. 2 Determination method
CB/F15899-1995
C.no5 ngre
0.0:5 ngFe
Weigh 5g of sample, add water, dilute to 100mL, take 20mL, a total of four portions, and determine according to the provisions of Article 6.2.2 of GB/T9723 4.2.5 Zinc
Connect to C8/T 9733 4.2.5.1 Instrumental conditions
Light source: zinc hollow cathode lamp:
Wrinkle length: 213.9am
Flame: Yihuan-air,
4.2.5.2 Weigh 2.5g sample and dissolve it in water, dilute to 100mL and take 10ml (chemically pure) and determine it according to the provisions of Article 6.2.2
4.2.6 Heavy metals
4.2.6.1 Preparation of hydrated manganese sulfate solution without heavy metal in four portions, according to GB/T9723
Weigh 25 samples and dissolve them in 100mL water, heat to 80℃, add 1m acetic acid solution (30ml) and 20ml of freshly prepared saturated hydrogen sulfide water, shake and place for 12~18h, filter, boil, cool, and incubate until 1504. 2. 6. 2 Determination method
Weigh 5 g of sample, dissolve in water, add 0.1 g ascorbic acid, add 0.2 mL ascorbic acid, 19 mL 95% ethanol and 10 mL fresh saturated hydrogen sulfide water, and let stand for 10 min. Take 30 mL of standard manganese sulfate monohydrate containing no metals and the following amount of lead (chemically pure) and dissolve with the same volume of sample and treat at the same time. 4.2.7 Ammonium sulfide does not precipitate
Take 1 mL, dissolve in 100% carbon dioxide-free water, heat to boiling, add 10), dilute to 30 mI: The sound shall not be too deep.
Standard solution:
Hydrogen sulfide in water with sodium hydroxide, at 50-70℃, heat in a reactor until the precipitation is completely connected and turns green, cool 100ml in a fresh room, filter, take 50nl of the filtrate and place it in a constant temperature evaporator. In a temperature not exceeding:
nearly dry, slowly heat with sulfuric acid vapor
chemically pure
4.2.8 Reduce permanganate
800℃ and burn to constant temperature. Weigh the residue mass: Sample, dissolve in 150mL water, add 3mL sulfuric acid and 3M phosphoric acid, dilute 200mL, take 100ml, add the following 1kMn0,> --0. 1 mol/LI
quantity of potassium peroxide standard titration solution
Analysis purity
chemical purity·
.C.10 ml
GB/T 15899—1995
Shake well and place for 1rin. The red color of the solution should be deeper than the remaining 100mL sample solution. 5
Inspection rules
Sampling and acceptance shall be carried out in accordance with the provisions of GB/I619. 6Packaging and marking
In accordance with the provisions of HG 3—119, among which:
Inner packaging form: G-3,G2-3;
Outer packaging form: W-1;
Packaging unit, Class 4.
Additional instructions:
This standard is proposed by the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of Beijing Chemical Reagent General Factory. This standard is drafted by Shanghai Reagent Factory No. 2. The main drafter of this standard is Sun Mingfeng.
From the date of implementation of this standard, the original Ministry of Chemical Industry standard HG3-1081-77 Chemical Reagent Manganese Sulfate will be invalid.
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