Synthetic silica gel
Part of: 281122 — Other inorganic oxygen compounds of nonmetals: — Silicon dioxide:
H332948 · 2025-08-25 — Request for Further Review of Protest Number 1601-21-105798; Classification; Applicability of Section 301 Trade Remedies; Silica Gel.
H332948 August 25, 2025 OT:RR:CTF:CPMMA H332948 NAH CATEGORY: Classification TARIFF NO.: 2811.22.10; 9903.88.37 Center Director Pharmaceuticals, Health and Chemicals Center of Excellence and Expertise U.S. Customs and Border Protection Attn: Michael Neeley, Import Specialist RE: Request for Further Review of Protest Number 1601-21-105798; Classification; Applicability of Section 301 Trade Remedies; Silica Gel. Dear Center Director, This is in reply to the Application for Further Review (“AFR”) of Protest Number 1602-21-105798, filed on September 22, 2021, by Harvest Ventures, dba Ultra Pet…
N248583 · 2014-01-06 — The tariff classification of synthetic amorphous silicon dioxide from Japan
In your ruling request dated December 2, 2013 you requested a tariff classification ruling on synthetic amorphous silicon dioxide (CAS no. 7631-86-9). A 50 gram sample from lot number D10225 was submitted for review and will be returned. The product at issue is a white, odorless, solid, in the form of small spherical granules. The submitted documentation further indicates that this product is commercially known as “Chromatorex” and is intended to be used as packing media for liquid chromatography to absorb carbon dioxide. The applicable subheading for synthetic amorphous silicon dioxide (CAS…
N237450 · 2013-03-15 — The tariff classification of synthetic amorphous silicon dioxide, from Germany
In your ruling request dated January 14, 2013, you requested a tariff classification ruling on synthetic amorphous silicon dioxide, which you refer to as silica gel or base gel (CAS no. 7631-86-9). A sample of the product was submitted and analyzed by the Customs and Border Protection Laboratory. The sample is described as white, odorless, granules. The submitted documentation further indicates that the product at issue is amorphous silicon dioxide, chemically prepared (CAS no. 7631-86-9). The Customs and Border Protection Laboratory report indicates that this product is synthetic silica gel.…
N235459 · 2013-03-13 — The tariff classification of synthetic amorphous silicon dioxide, from Germany
In your ruling request dated November 13, 2012, you requested a tariff classification ruling on two grades of synthetic amorphous silicon dioxide (CAS no. 7631-86-9). Samples of the products was submitted and analyzed by the Customs and Border Protection Laboratory. Product “A” is described as white, odorless, powder. The submitted documentation further indicates that product “A” is amorphous silicon dioxide, chemically prepared (CAS no. 7631-86-9). Product “B” is described as white, odorless, powder containing less than 5% citric acid used as a preservative. The submitted documentation…
N194038 · 2011-12-05 — The tariff classification of a synthetic silica gel body warmer from China
In your ruling request dated November 21, 2011, on behalf of PVH Corp., you requested a tariff classification ruling for a body warmer identified as “Tommy Hilfiger style # 5467.” A sample of the product was provided for review and will be returned as requested. In your submission, you describe the product as a body warmer. The outer layer is made of 100% woven wool and measures approximately 9” x 7”. The inner pouch is made of 65% polyester and 35% cotton. The inner pouch is filled with 80% synthetic silica gel beads and 20% ceramic beads. The inner white pouch containing the beads is…
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