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Standard substance and standard solution

Product name Specifications Packing Unit price / yuan
Standard visa 7-200
P-methoxybenzoic acid
Anthracene
P-nitrobenzoic acid
Naphthylamine hydrochloric acid standard solution 50ml
Naphthalene
Melting point reference material
Calcium hydroxide PH = 12.40 ± 0.02 25 ° C 500ml
Oil bromine valence standard liquid 100ml
Lithium bromide standard solution 50ml
Cobalt chloride standard solution 500ml
2.4-Dichloro standard liquid 50ml
Isobutanol isoamyl alcohol standard solution 5ml
Isobutanol standard solution 50ml
Isopropanol-ethanol standard solution 50ml
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