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31. Pure air is colourless and odourless.

32. In a manner of speaking, objects are colourless.

33. This allyl type resin is a highly transparent, colourless material.

34. Coloration of EBN will fade upon soaking, but the water used for soaking should remain colourless.

35. Cellophane: A soft, high gloss, colourless, transparent paper, used mainly for packing and decorating. It is made by means of viscose process.

36. Being scentless and colourless, water has no product image at all.

37. Transparent, colourless, or white powder or crystals of potassium nitrate ( KNO 3 ) , found native in deposits.

38. The tangerine and orange scheelite, bright black cassiterite, colourless and transparent board beryl occur in Pingwu, Sichuan Province.

39. A colourless liquid with a Bland , sweetish odour, it is toxic and caustic.

40. Ultra slight mote colourless piece reaches and divides layer naturally, revise the face ortline.

41. Behind him the hills are open, the sun blazes down upon fields so large as to give an unenclosed character to the landscape, the lanes are white, the hedges low and plashed(sentencedict.com), the atmosphere colourless.

42. Hydrogen is referred to as H 2. It is a colourless, odourless and tasteless gas.

43. His exquisite compression and vividly cinematic imagery are instantly attractive, but the elemental sparseness of his language can often be rendered as colourless and bland.

44. At room temperature, water is a colourless , odourless, tasteless liquid.

45. She aimed her voice very pointedly at the colourless couple.

46. Oxalic acid: Colourless, crystalline, toxic carboxylic acid found in many plants, especially rhubarb, wood sorrel , and spinach.

47. The odourless , colourless gas is deadly if there is high or prolonged exposure.

48. It is a colourless, flammable liquid with a characteristic smell, miscible with water, alcohol, ether, chloroform and most oils. Also called Dimethyl ketone, Methylacetyl, Propanone, Pyroacetic ether.

49. Made from aqueous formula, this product is colourless , odourless, non - toxic , non - corrosive, non - irritating and environment friendly.

50. Propane: Colourless, easily liquefied hydrocarbon gas ( C 3 H 8 or , more fully, CH 3 CH 2 CH 3 ).

51. Vodka: Colourless distilled liquor of neutral spirits usually made from a grain mash ( generally rye or wheat ).

52. Nitric acid: Inorganic compound, colourless, fuming, highly corrosive liquid,(sentencedict.com/colourless.html) chemical formula HNO 3.

53. Saltpetre (or nitre also spelled saltpeter orniter):Transparent, colourless, or white powder or crystals of potassium nitrate (KNO3), found native in deposits.

54. It is a colourless , odourless and tasteless gas, slightly heavier than air.

55. Acetylene (ethyne)Simplest alkyne, C2H2. A colourless, flammable, explosive gas, it is used as a fuel in welding and cutting metals and as a raw material for many organic compounds and plastics.

56. After esterifying reaction, high-vacuum rectification is used to extract the docosahexenoic acid as health-care nutritive product which is colourless and odourless.

57. Photochromic compound is characterized of changing from one colour to another under UV radiation and returned to be colourless after removal of the light source.

58. Exposure to the gas odourless and colourless, is potentially fatal.

59. Carbolic acid( or phenol ):Organic compound, simplest member of the class of phenols. A colourless liquid with a Bland, sweetish odour, it is toxic and caustic.

60. Mrs Peniston was a small plump woman, with a colourless skin lined with trival wrinkles.