Pure sulfuric acid does not occur naturally due to its strong affinity to water vapor; it is hygroscopic and readily absorbs water vapor from the air. Concentrated sulfuric acid is highly corrosive towards other materials, from rocks to metals, since it is an oxidant with powerful dehydrating properties. Phosphorus pentoxide is a notable exception in that it is not dehydrated by sulfuric acid but, to the contrary, dehydrates sulfuric acid to sulfur trioxide. Upon addition of sulfuric acid to water, a considerable amount of heat is released; thus, the reverse procedure of adding water to the acid should not be performed since the heat released may boil the solution, spraying droplets of hot acid during the process. Upon contact with body tissue, sulfuric acid can cause severe acidic chemical burns and even secondary thermal burns due to dehydration. Dilute sulfuric acid is substantially less hazardous without the oxidative and dehydrating properties; however, it should still be handled with care for its acidity.
Bitumen penetration grade 60/70 is semi-hard penetration grade bitumen using as paving grade bitumen suitable for road construction and repair conjointly for the production of asphalt pavements with below technical specifications. This grade of bitumen is mainly used in the manufacture of hot combine asphalt for bases and wearing courses. Bitumen 60/70 is the most used bitumen grade and basic material for all alternative bituminous products. Bitumen Penetration Grade 60/70 is mainly used in the manufacture of hot mix asphalt for bases and wearing courses. Penetration Grade Bitumen supplied by RAHA GROUP is petroleum grade bitumen, manufactured from fractional / vacuum distillation of crude oil. The Bitumen supplied by RAHA GROUP is produced from vacuum residue (short residue) feedstock. RAHA Penetration Grade bitumens are specified by the penetration and softening point test. The designation is by penetration range only. The penetration grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/ viscosity relationship is important when determining the performance parameters such as the adhesion, rheology, durability and application temperatures of bitumen.
Bitumen Penetration Grade 85/100 is a standard penetration grade Bitumen usually used as a Paving Grade Bitumen suitable for road construction and for the production of asphalt pavements with superior properties. This grade of Bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses. is petroleum grade bitumen, manufactured from fractional / vacuum distillation of crude oil. This bitumen is produced through aeration on vacuum bottom (the raw material used for making bitumen left in vacuum distillation column in oil refineries) in bitumen production units. Its penetration grade ( the measure of bitumen hardness) is between 85 to 100. Penetration Grade bitumens are specified by the penetration and softening point test. The designation is by penetration range only. The penetration grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/ viscosity relationship is important when determining the performance parameters such as the adhesion, rheology, durability and application temperatures of bitumen. The Bitumen mode is dependent on temperature. The temperature-vs-stiffness relationship of bitumen is dependent on the type of crude oil and its refining method. Bitumen penetration grade 85/100 is semi hard penetration grade bitumen used as a paving grade bitumen which is suitable for road construction and repair. It is also used for the production of asphalt pavements with the below technical specification. This grade of bitumen is mainly used in the manufacturing of hot mix asphalt for bases and wearing courses. Bitumen 85/100 is one of the most used bitumen grades and a basic material for all other bituminous products. Penetration determines the hardness of bitumen by measuring the depth to which a standard loaded the needle will vertically penetrate in 5 seconds, in a sample of bitumen maintained at a temperature of 25 degrees Celsius.
Free size dresses, free size shirts, Packing bags each, and then sealed in a box
Contact us for wholesale and custom handmade costumes
Contact us for wholesale and custom handmade costumes for actors and actresses
Paper and IT products.
Wooden pallets, corners, strapping rolls, metal clips, clipping tools.
Fashion dresses.Design , package , export documentation and arrange custom clearing
Mens & ladies jeans.
Steam / thermal coal, rb1 & rb3, anthracite coal, manganese ore, iron ore, copper ore and concentrate, zinc ore and concentrate, lead ore, timber. sisal fibre..Freight forwarding, customs clearance, sourcing, ship contractor, freight forwarding, taxi, car hire.
Hijab, abayas and kaftans.
Thermal Coal, Lithium, Manganese, Iron Ore, Copper.
Night Dress.
Ethnic & batik garments, cloths.Buying
Our stock are of limited quantities. Bras, panties, night wear, sexy wear of high quality are readily available in Kenya. Bras sizes 30A - 46F Other products sizes S -XXLÂÂ.
African art, african handbags(kyondo), african wear(kitenge, shula, maasai sandals), Charcoal(for sheesha).
Muslim wear, men wear, kanzu, omani, thobe, ghutra, bisht, serwal, izar, turban, women wear, burqa, hijab, abaya, salwar kameez, kaftans, tunics, niqab, khimar, other wear like trouser and shirts.
Dolls and Toys making using locally available recycled materials is increasingly gaining popularity as an income generating activity particularly with the slum women dwellers. There are many other individual women artisans with similar skills who are already involved in making dolls as a source of income. For a majority of these women, it is a means towards self-reliance. All the toy and doll makers operate from their respective home environment. The women group is comprised of single as well married mothers, who supplement their socio-economic basic needs through making of dolls and toys. There are other women groups in the rural areas of Central province who specialize in traditional doll making using raw materials like maize husks, wood and pieces of rags. Other materials used include "clothes left over". These are bought from various tailor shops. Such wrap up materials are used in making the innovative and ingenious wire bicycle like among others, the riding man or ingeniously made flapping/flying birds. As for the women dolls, materials used are tree bark, beads, and sisal materials. What makes some of the dolls to be more traditional in appearance is that they are dressed with traditional costume or attire. So are the ornamental items. The popular traditional dolls are Turkana "mama", Giriama Dancer, Kikuyu dancer, Maasai warrior, Miss Maasai, Coast lady in their Muslim veil, the mama na mtoto (mother and child), jambo/hello boy and safari dolls such as Zebra, Monkey and Giraffe dolls. The materials used to make most of these dolls and toys are sourced locally. The creativity and enterprising zeal and imaginations of dolls and toys producers extend beyond the Kenyan boarders in that these producers have been able to come up with dolls wearing other African countries' national attire. These dolls are the Ugandan lady, Nigerian lady, Sudan beauty queen including Christmas nativity products. The workmanship on the African dolls is of high quality. However, the ware bicycles and flying like bird are quite an innovative piece of work that arouses curiosity among children particularly boys while girls show interest in other type of african dolls and wire toys.
African fabric materials, honey, ginger, kitenge fashion clothes, leather beaded bags, leather beaded shoes, gifts and crafts, interior decos ..
