- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Gwreiddiol (a wnaed Fel)
Dyma’r fersiwn wreiddiol (fel y’i gwnaed yn wreiddiol). Dim ond ar ei ffurf wreiddiol y mae’r eitem hon o ddeddfwriaeth ar gael ar hyn o bryd.
4.—4.1 Concentrated sulfuric acid (H2SO4, ρ = 1.84 g/ml).
4.2 Carefully mix 1 volume of concentrated sulfuric acid (4.1) with 1 volume of water.
4.3 Mix 3 volumes of nitric acid (HNO3, ρ = 1.40 g/ml) with 4 volumes of water.
4.4 Mix 1 volume of 6 M nitric acid with 19 volumes of water.
4.5 Sodium bismuthate (NaBiO3) (85%).
4.6 Kieselguhr.
4.7 Orthophosphoric acid, 15 M (H3PO4, ρ = 1.71 g/ml).
4.8 Dissolve 41.6 g of ferrous sulfate heptahydrate (FeSO4, 7 H2O) in a 1 litre volumetric flask.
Add 25 ml of concentrated sulfuric acid (4.1) and 25 ml phosphoric acid (4.7). Make up to 1000 ml. Mix.
4.9 Weigh out 3.160 g of potassium permanganate (KMnO4) to within 0.1 mg. Dissolve and make up 1000 ml with water.
4.10 Dissolve 1.7 g of silver nitrate (AgNO3) in water and make up to 100 ml.
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Y Diweddaraf sydd Ar Gael (diwygiedig):Y fersiwn ddiweddaraf sydd ar gael o’r ddeddfwriaeth yn cynnwys newidiadau a wnaed gan ddeddfwriaeth ddilynol ac wedi eu gweithredu gan ein tîm golygyddol. Gellir gweld y newidiadau nad ydym wedi eu gweithredu i’r testun eto yn yr ardal ‘Newidiadau i Ddeddfwriaeth’.
Gwreiddiol (Fel y’i Deddfwyd neu y’i Gwnaed): Mae'r wreiddiol fersiwn y ddeddfwriaeth fel ag yr oedd pan gafodd ei deddfu neu eu gwneud. Ni wnaed unrhyw newidiadau i’r testun.
Gallwch wneud defnydd o ddogfennau atodol hanfodol a gwybodaeth ar gyfer yr eitem ddeddfwriaeth o’r tab hwn. Yn ddibynnol ar yr eitem ddeddfwriaeth sydd i’w gweld, gallai hyn gynnwys: