supply of acids , solvants , indicators , food colours etc . supply of acids , solvents , indicators , food colours etc . , acids & solvents , sulphuric acid- concentrated ar 2 . 5ltr , phenol disulphonic acid ar 500ml , sulphonic acid ar 500ml , concentrated hcl ar 2 . 5 ltr , concentrated nitric acid ar 500ml , acetic acid glacial ar 500ml , tartaric acid ar 500g , orotic acid ar 25g , acetic acid acs grade 500ml , double distilled nitric acid acs grade 1 ltr , formic acid acs grade 500ml , phosphoric acid acs grade 500ml , trichloro acetic acid ar 500ml , acetone ar 500ml , carbon tetra chloride ar 500ml , n-hexane ar 2 . 5 ltr , diethyl ether ar 500ml , toluene ar 500ml , petrolium ether ( 40-60c ) ar 500ml , n-butanol ar 500ml , acetonitrile ar 500ml , glycerol ar 500ml , indicators methyl red powder ar 25g , bromocresol green powder ar 25g , phenolphthalein indicator 125ml , methyl red indicator 125ml , ferric alum ar 50g , methylene chloride ar 100ml , purple violet ar 25g , starch soluble ar 500g , food colours ( nist traceable ) - [note: all standards must be fo available minimum packsize . the quoted packsize shall be mentioned in specification list , all the standards must be analytical standards used as reference materials in hplc and gc , all the standards must accompany a valuable certificate of analysis for minimum of two years or better , all certified reference material ( crm ) is produced and certified in accordance with iso/iec 17025 and iso:17034 ( iso guide 34 ) . this crm is traceable to primary material from an nmi , eg . nist or nmij , al the standards must be a certified reference material and it must be procured from internationally reputed manufacturer/ supplier] ponceau 4 r nist certified 1mg , ponceau 4 r nist certified 25 mg , erythrosine nist certified 1mg , erythrosine nist certified 25mg , brilliant blue nist certified 5mg , carmoisine nist certified 1g , carmoisine nist certified 25mg , sunset yellow nist certified 25mg , tartrasine nist certified 25mg , food colours ( certified reference material ( crm ) ) - [note: all standards must be fo available minimum packsize . the quoted packsize shall be mentioned in specification list , all the standards must be analytical standards used as reference materials in hplc and gc , all the standards must accompany a valuable certificate of analysis for minimum of two years or better , all certified reference material ( crm ) is produced and certified in accordance with iso/iec 17025 and iso:17034 ( iso guide 34 ) . this crm is traceable to primary material from an nmi , eg . nist or nmij , al the standards must be a certified reference material and it must be procured from internationally reputed manufacturer/ supplier] amaranth crm 25mg , butter yellow crm 25mg , orange red crm 25mg , fast green crm 25mg , indigo carmine crm 25mg , metalin yellow crm 25mg , orange ii crm 25mg , rhodamine b crm 80g , fast red crm 25 mg , sudan i crm 25mg , sudan ii crm 25mg , sudan iii crm 25mg , sudan iv crm 25mg