1 Scope
This document specifies the product classification, requirements, test methods, inspection rules, marking and labeling, packaging, transportation and storage of potassium nitrate for industrial use.
This document is applicable to potassium nitrate for industrial use.
Note: This product is mainly used in fused salt, black powder, fuse, pharmaceutical intermediates, optical glass, ammonia catalyst, metal heat treatment, enamel and other industries.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this standard and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191-2000 Packaging — Pictorial marking for handling of goods
GB/T 3051-2000 Inorganic chemical products for industrial use — General method for determination of chloride content — Mercurimetric method
GB/T 3600-2000 Fertilizers — Determination of ammoniacal nitrogen content — Formaldehyde method
GB/T 6678 General rules for sampling liquid chemical products
GB/T 6682-2008 Water for analytical laboratory use — Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 23945-2009 Inorganic chemicals for industrial use — General method for the determination of chloride content — Visible turbidimetric method
HG/T 3696.1 Inorganic chemicals for industrial use — Preparations of standard and reagent solutions for chemical analysis — Part 1: Preparations of standard volumetric solutions
HG/T 3696.2 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products — Part 2: Preparation of impurity standard solutions
HG/T 3696.3 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products — Part 3: Preparation of preparations and products
JT/T 617 (all parts) Regulations concerning road transportation of dangerous goods
3 Terms and definitions
No terms and definitions are listed in this standard.
4 Molecular formula and relative molecular mass
Molecular formula: KNO3
Relative molecular mass: 101.10 (according to international relative atomic mass in 2018)
5 Classification
Potassium nitrate for industrial use is classified into three categories, with the following main applications:
——Category I products are mainly used for producing fused salt;
——Category II products are classified into two types, of which Type I products are mainly used for producing black powder, fuse, pharmaceutical intermediates and glass clarifier, etc., and Type II products are mainly used for metal heat treatment, producing enamel glaze, etc.
——Category III products are products with inorganic salts anti-caking agents, which are mainly used as fluxing agents for glass and ceramics.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Molecular formula and relative molecular mass
5 Classification
6 Requirements
7 Test method
8 Inspection rules
9 Marking and labeling
10 Packaging, transportation and storage
Annex A (Informative) Common spectral lines and detection limits of ICP-OES
Bibliography
1 Scope
This document specifies the product classification, requirements, test methods, inspection rules, marking and labeling, packaging, transportation and storage of potassium nitrate for industrial use.
This document is applicable to potassium nitrate for industrial use.
Note: This product is mainly used in fused salt, black powder, fuse, pharmaceutical intermediates, optical glass, ammonia catalyst, metal heat treatment, enamel and other industries.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this standard and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191-2000 Packaging — Pictorial marking for handling of goods
GB/T 3051-2000 Inorganic chemical products for industrial use — General method for determination of chloride content — Mercurimetric method
GB/T 3600-2000 Fertilizers — Determination of ammoniacal nitrogen content — Formaldehyde method
GB/T 6678 General rules for sampling liquid chemical products
GB/T 6682-2008 Water for analytical laboratory use — Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 23945-2009 Inorganic chemicals for industrial use — General method for the determination of chloride content — Visible turbidimetric method
HG/T 3696.1 Inorganic chemicals for industrial use — Preparations of standard and reagent solutions for chemical analysis — Part 1: Preparations of standard volumetric solutions
HG/T 3696.2 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products — Part 2: Preparation of impurity standard solutions
HG/T 3696.3 Preparation of standard solutions, preparations and products for chemical analysis of inorganic chemical products — Part 3: Preparation of preparations and products
JT/T 617 (all parts) Regulations concerning road transportation of dangerous goods
3 Terms and definitions
No terms and definitions are listed in this standard.
4 Molecular formula and relative molecular mass
Molecular formula: KNO3
Relative molecular mass: 101.10 (according to international relative atomic mass in 2018)
5 Classification
Potassium nitrate for industrial use is classified into three categories, with the following main applications:
——Category I products are mainly used for producing fused salt;
——Category II products are classified into two types, of which Type I products are mainly used for producing black powder, fuse, pharmaceutical intermediates and glass clarifier, etc., and Type II products are mainly used for metal heat treatment, producing enamel glaze, etc.
——Category III products are products with inorganic salts anti-caking agents, which are mainly used as fluxing agents for glass and ceramics.
Contents of GB/T 1918-2021
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Molecular formula and relative molecular mass
5 Classification
6 Requirements
7 Test method
8 Inspection rules
9 Marking and labeling
10 Packaging, transportation and storage
Annex A (Informative) Common spectral lines and detection limits of ICP-OES
Bibliography
