GB 639-1986
Chemical Reagent Anhydrous Sodium Carbonate (English Version)
- Standard No.
- GB 639-1986
- Language
- Chinese, Available in English version
- Release Date
- 1986
- Published By
- Professional Standard - Agriculture
- Status
- 2008-11
- Replace By
- GB/T 639-2008
- Latest
- GB/T 639-2008
- Replace
- GB 639-1977
- Scope
- This reagent is a white powder, which gradually absorbs water and becomes a monohydrate when exposed to the air, soluble in water but insoluble in ethanol.
GB 639-1986 history
- 2008 GB/T 639-2008 Chemical reagent.Sodium carbonate anhydrous
- 1986 GB 639-1986 Chemical Reagent Anhydrous Sodium Carbonate
- 0000 GB 639-1977
GB 639-1986 Chemical Reagent Anhydrous Sodium Carbonate was changed to GB/T 639-2008 Chemical reagent.Sodium carbonate anhydrous.
