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and then, acting as a weak acid, hydrogen phthalate reacts reversibly with water to give hydronium (H 3 O +) and phthalate ions. HP − + H 2 O ⇌ P 2− + H 3 O + KHP can be used as a buffering agent in combination with hydrochloric acid (HCl) or sodium hydroxide (NaOH). The buffering region is dependent upon the pKa, and is typically +/- 1.0 ...
Keells is a Sri Lankan supermarket chain operated by Jaykay Marketing Services (Pvt) Ltd., a subsidiary of the John Keells Group. [1] Established in 1991, [1] [2] Keells has grown to operate 135 outlets across the country, positioning itself as one of the leading retail chains in Sri Lanka alongside other retailers such as Cargills, Glomark, Spar, and Arpico.
John Keells Logistics (Pvt) Ltd. is a logistic, supply chain management and transportation management company. It is a subsidiary of John Keells. It is a recipient of the ISO 9001:2015 and ISO 45001:2018 certifications. [9] Mackinnons is one of the oldest logistic companies in Sri Lanka. It was founded by India Steamship Company in 1917.
Keells Krest brand is one the 100 most valuable brands in Sri Lanka. The brand value of Keells Krest is estimated to be worth LKR1,127 million in 2022, a 12.6% growth from the previous year. [7] Keells Food Product is ranked 15th in LMD 100 second board in its 2020/21 edition. LMD 100 ranks publicly quoted companies of Sri Lanka by revenue ...
Phthalates (US: / ˈ θ æ l eɪ t s / UK: / ˈ θ ɑː l eɪ t s ˌ ˈ f θ æ l ɪ t s / [1] [2]), or phthalate esters, are esters of phthalic acid. They are mainly used as plasticizers , i.e., substances added to plastics to increase their flexibility, transparency, durability, and longevity.
A mysterious illness, which the Africa Centers for Disease Control and Prevention is calling "disease X," has killed at least 31 people — mostly children — in the remote Panzi region of the ...
Lanka Sathosa also known as Sathosa is a wholesale and retail chain located in Sri Lanka. It is considered to be the largest state-owned retail chain in the country and was established in 2005. [ 1 ] Sathosa was incorporated as a state-owned enterprise under Companies Act no 7 of 2007 and it is regulated by the Ministry of Trade, Commerce ...
Arpico Super Centre also popularly simply known as Arpico is a chain of supermarkets which is also regarded as a departmental store located in Sri Lanka owned by Richard Pieris & Company. The retail shopping mall was initially started with the concept of supermarket and then transformed its business operations as a supercentre.