CARVATŪ YELLOW PAPERS™
(Hydrosulfite Test Papers, Test Strips)
|CARVATŪ YELLOW PAPERS™ are invaluable in the textile
dyeing industry for the instant determination of the end point
in the conversion of vat dyes to the leuco form. A vat dye
properly set with excess hydrosulfite (sodium dithionate) and caustic
soda turns this test paper a bright blue.
For the convenience of the dyer, the book contains 40 strips
of Phenolphthalein paper for a fast determination of caustic.
They can also be used for the important checking of effluents
and wash waters for pollution.
Item # 980001 per book (120 strips yellow paper, 40 strips
paper 10 x 50 mm)
Price: $15.95 ea.
Item # 980002 per book
(175 strips of yellow paper only 10 mm x 50 mm )
Price: $19.95 ea.
Link to Chemical Information
https://environmentalchemistry.com/yogi/chemicals/cn/Sodium%A0hydrosulfite.html - This page contains information on the chemical Sodium hydrosulfite including: 23 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and 2 proper shipping names; USDOT 2004 Emergency Response Guidebook initial response information for 3 related materials.
1000 Montana Drive, NC 28216
Tel: 704-398-8268, ext 14 Fax: 704-391-1881